Which is the strongest alkali? [7e-5]
Which is the weakest alkali? [7e-6]
Which is the strongest acid? [7e-7]
Which is the weakest acid? [7e-8]
Which of the following can be mixed to form a neutral solution? [7e-9]
Which of the following can be mixed to form a neutral solution? [7e-10]
Which of the following can be safely used to treat an acid bee sting? [7e-11]
Which of the following can be safely used to treat an alkaline wasp sting? [7e-12]
Which of the following is most likely to be part of an antacid indigestion medicine? [7e-13]
Which of the following is the safest to use to treat an acid nettle sting? [7e-14]
A small amount of a dense white powder was mixed with water in a test tube and the mixture well shaken. None of the white powder sank to the bottom of the test tube. A few drops of universal indicator were added and the solution turned blue. This meant the white powder was? [7e-15]
A small amount of a dense white powder was mixed with water in a test tube and the mixture well shaken. Some of the white powder sank to the bottom of the test tube. A few drops of universal indicator were added and the solution turned blue. This meant the white powder was? [7e-16]
A small amount of a dense white powder was mixed with water in a test tube and the mixture well shaken. None of the white powder sank to the bottom of the test tube. A few drops of universal indicator were added and the solution turned green. This meant the white powder was? [7e-17]
A small amount of a dense white powder was mixed with water in a test tube and the mixture well shaken. Some of the white powder sank to the bottom of the test tube. A few drops of universal indicator were added and the solution turned green. This meant the white powder was? [7e-18]
A small amount of a dense white powder was mixed with water in a test tube and the mixture well shaken. None of the white powder sank to the bottom of the test tube. A few drops of universal indicator were added and the solution turned orange. This meant the white powder was? [7e-19]
A small amount of a dense white powder was mixed with water in a test tube. Some of the white powder sank to the bottom of the test tube and the mixture well shaken. A few drops of universal indicator were added and the solution turned red. This meant the white powder was? [7e-20]



battery acid (sulphuric acid)
salt solution (aqueous sodium chloride)
oven cleaner (ammonia solution)
battery acid (sulphuric acid)
salt solution (aqueous sodium chloride)
oven cleaner (ammonia solution)
battery acid (sulphuric acid)
salt solution (aqueous sodium chloride)
oven cleaner (ammonia solution)
battery acid (sulphuric acid)
salt solution (aqueous sodium chloride)
oven cleaner (ammonia solution)
A substance was dissolved in water containing universal indicator. The indicator turned red. This shows the dissolved substance was a? [7e-29]
A substance was dissolved in water containing universal indicator. The indicator turned orange. This shows the dissolved substance was a? [7e-30]
A substance was dissolved in water containing universal indicator. The indicator turned violet. This shows the dissolved substance was a? [7e-31]
A substance was dissolved in water containing universal indicator. The indicator turned pale blue. This shows the dissolved substance was a? [7e-32]
A substance was dissolved in water containing universal indicator. The indicator turned yellow. This shows the dissolved substance was a? [7e-33]
A substance was dissolved in water containing universal indicator. The indicator turned dark green. This shows the dissolved substance was a? [7e-34]
A substance was dissolved in water containing universal indicator. The indicator turned light green. This shows the dissolved substance was a? [7e-35]
A substance was dissolved in water containing universal indicator. The indicator didn't change colour. This shows the dissolved substance was probably a? [7e-36]
The diagram shows a more elaborate and more accurate way of doing a neutralisation reaction using a conical flask, pipette and burette.
The diagram shows a more elaborate and more accurate way of doing a neutralisation reaction using a conical flask, pipette and burette.
The diagram shows a more elaborate and more accurate way of doing a neutralisation reaction using a conical flask, pipette and burette.
The diagram shows a more elaborate and more accurate way of doing a neutralisation reaction using a conical flask, pipette and burette.
A lake is found to be too acidic to allow fish to live. Which substance could be added to the water reduce the acidity in the lake? [7e-41]
Soil is found to be too acidic to allow healthy flower growth. Which substance could be added to reduce the acidity in the soil? [7e-42]













The graph lines show what happens to the pH of a solution, when acids and alkalis are mixed together. Which statement is TRUE? [7e-57]
The graph lines show what happens to the pH of a solution, when acids and alkalis are mixed together. Which statement is TRUE? [7e-58]
The graph lines show what happens to the pH of a solution, when acids and alkalis are mixed together. Which statement is TRUE? [7e-59]
The graph lines show what happens to the pH of a solution, when acids and alkalis are mixed together. Which statement is TRUE? [7e-60]
Lemon juice is an acid and bleach is an alkali. Which statement is FALSE? [7e-61]
Lemon juice is an acid and bleach is an alkali. Which statement is FALSE? [7e-62]
Lemon juice is an acid and bleach is an alkali. Which statement is FALSE? [7e-63]
Lemon juice is an acid and bleach is an alkali. Which statement is FALSE? [7e-64]
Which is the strongest alkali? [7e-65]
Four different coloured substances were extracted from plant materials. The idea was too see if any of them could be used as pH indicators to see how acid or how alkaline a solution is. They were made into four solutions and tested with three solutions of pH 2, 7 and 11. From the results, which do you think would make the most useful indicator? [7e-66]
What do we call substances that change colour in acids or alkalis to tell us which solution is which? [7e-67]

At an agricultural testing laboratory, four soil samples from a horticultural company were tested for their relative acidity or alkalinity by measuring their pH with a special calibrated pH meter. Quicklime is an alkaline solid agri-chemical used to control soil pH.
At an agricultural testing laboratory, four soil samples from a horticultural company were tested for their relative acidity or alkalinity by measuring their pH with a special calibrated pH meter. Quicklime is an alkaline solid agri-chemical used to control soil pH.
At an agricultural testing laboratory, four soil samples from a horticultural company were tested for their relative acidity or alkalinity by measuring their pH with a special calibrated pH meter. Quicklime is an alkaline solid agri-chemical used to control soil pH. Acidic peat can be added to make a soil less alkaline.
At an agricultural testing laboratory, four soil samples from a horticultural company were tested for their relative acidity or alkalinity by measuring their pH with a special calibrated pH meter. Quicklime is an alkaline solid agri-chemical used to control soil pH.
Which of the following can be safely used to treat an alkaline wasp sting? [7e-74]
Which of the following can be safely used to treat an acid bee sting? [7e-75]
Which of the following is the safest to use to treat an acid nettle sting? [7e-76]
A chemical company can accidently spill a substance into a local stream that feeds into a trout fishing river. Which of the following possible spilled chemicals would cause the most immediate harm to aquatic river life? [7e-77]
A chemical company can accidently spill a substance into a local stream that feeds into a trout fishing river. Which of the following possible spilled chemicals would cause the most immediate harm to aquatic river life? [7e-78]







Lakes can be too acidic from dissolved air pollutents like sulphur dioxide and cause a decline in fish populations. Alkaline lime can be added to the lake to help the situation. What type of reaction occurs between the lime and acid rain to affect the lake pH? [7e-92]
The acid-alkaline properties of four versions of "DOC BROWN'S ANTI-STING LOTION" were being tested in the laboratory. Their pH's are listed below. Which would be described as the most acid? [7e-93]
The acid-alkaline properties of four versions of "DOC BROWN'S ANTI-STING LOTION" were being tested in the laboratory. Their pH's are listed below. Which would be described as nearly neutral? [7e-94]
The acid-alkaline properties of four versions of "DOC BROWN'S ANTI-STING LOTION" were being tested in the laboratory. Their pH's are listed below. Which would be the safest to use on an acid bee sting? [7e-95]
The acid-alkaline properties of four versions of "DOC BROWN'S ANTI-STING LOTION" were being tested in the laboratory. Their pH's are listed below. Which would be described as the most alkaline? [7e-96]
The acid-alkaline properties of four versions of "DOC BROWN'S ANTI-STING LOTION" were being tested in the laboratory. Their pH's are listed below. Which would be the safest and most effective to use on an alkaline wasp sting? [7e-97]
The pH's of four soils are listed below. Heather prefers an acidic soil for healthy growth. Which soil would be the best to grow heather in? [7e-98]
The pH's of four soils are listed below. Some varieties of the vegetable parsley prefer alkaline soil for healthy growth. Which soil would be the best to grow the parsley in? [7e-99]
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
The graph shows the results of an experiment to monitor the pH of mouth fluids when various foods are eaten. In this case, Jim and Jane were enjoying sweet cakes and eating one every five minutes from 10 minutes to 30 minutes of the experiment. The pH was still measured before they started eating and for 15 minutes after they were told to stop eating. The experiment lasted a total of 45 minutes and Jane brushed her teeth 5 minutes after eating her last cake.
DANGER - chemist at work!!!! Which word matches the following hazard warning description ... 'may make you ill if swallowed, breathed in or absobed through the skin'? [7e-109]
DANGER - chemist at work!!!! Which word matches the following hazard warning description ... 'may cause reddening or blistering of the skin'? [7e-110]
DANGER - chemist at work!!!! Which word matches the following hazard warning description ... 'attacks and destroys living tissue'? [7e-111]
DANGER - chemist at work!!!! Which word matches the following hazard warning description ... 'may kill you if swallowed, breathed in or absobed through the skin'? [7e-112]
Which gas is formed when a metal reacts with an acid? [7f-1]
Which gas is formed when a carbonate reacts with acid? [7f-3]
In a chemistry experiment, which word means what you start with? [7f-5]
In a chemistry experiment, which word means what you end up with? [7f-6]
In a chemistry experiment, which word represents the overall change? [7f-7]
In a chemistry preparation experiment, which word means how well it has gone? [7f-8]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-9]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-10]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-11]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-12]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when an acid is mixed with an alkali with litmus paper in it? [7f-13]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a suspected carbonate is added to an acid? [7f-14]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a fuel burns? [7f-15]
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when carbon dioxide is passed into limewater? [7f-16]
Which of the following best describes what is formed when methane reacts with oxygen? [7f-17]
Which of the following is formed when a metal reacts with an acid? [7f-18]
Which of the following is formed when a carbonate reacts with an acid? [7f-19]
Which of the following is always formed when an element reacts with oxygen? [7f-20]
Which of the following is the test for carbon dioxide gas? [7f-21]
Which of the following is the test for oxygen gas? [7f-22]
Which of the following is the test for hydrogen gas? [7f-23]
Which of the following is the test for chlorine gas? [7f-24]
When substance W was added to an acid, a colourless gas was formed that gave a squeaky pop with a lit splint. W is most likely to be a? [7f-25]
When substance X was added to an acid, a colourless gas formed that turned limewater 'milky'. X is most likely to be a? [7f-26]
When substance Y was added to an acid, the resulting solution turned green with universal indicator, and no gas bubbles were seen. Y is most likely to be a? [7f-27]
Which of the following reacts with acid to form carbon dioxide gas and a blue solution? [7f-31]































A variety of observations can indicate when a chemical reaction is happening to form new substances when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a metal is added to an acid? [7f-57]
A variety of observations can indicate when a chemical reaction is happening to form new substances when chemicals are mixed. Which of the following is most likely to indicate a chemical change when an acid is mixed with an alkali? [7f-58]
A solution X was tested by a student in various ways with different materials. The following results were obtained.
A solution X was tested by a student in various ways with different materials. The following results were obtained.
A solution X was tested by a student in various ways with different materials. The following results were obtained.
A solution X was tested by a student in various ways with different materials. The following results were obtained.
A solution X was tested by a student in various ways with different materials. The following results were obtained.
The diagram shows a particular way of preparing a substance. How can you tell the method is for preparing a gaseous product? [7f-65]
The diagram shows a particular way of preparing a gaseous substance.

The diagram shows an experiment to investigate the products of burning a hydrocarbon molecule like candle wax. What are the condensed colourless drops formed called? [7f-68]
The diagram shows an experiment to investigate the products of burning a hydrocarbon molecule like candle wax. If limewater is in the left-hand U, what is formed that causes the milky white precipitate? [7f-69]


Chemical changes make new materials and tend not to be readily reversed. Physical changes do not make new materials and tend to be readily reversed. Which of the following is a chemical change? [7f-71]
Chemical changes make new materials and tend not to be readily reversed. Physical changes do not make new materials and tend to be readily reversed. Which of the following is a chemical change? [7f-72]
Chemical changes make new materials and tend not to be readily reversed. Physical changes do not make new materials and tend to be readily reversed. Which of the following is a chemical change? [7f-73]
Chemical changes make new materials and tend not to be readily reversed. Physical changes do not make new materials and tend to be readily reversed. Which of the following is a physical change? [7f-74]
Chemical changes make new materials and tend not to be readily reversed. Physical changes do not make new materials and tend to be readily reversed. Which of the following is a physical change? [7f-75]
Chemical changes make new materials and tend not to be readily reversed. Physical changes do not make new materials and tend to be readily reversed. Which of the following is a physical change? [7f-75]
The diagram shows the test for carbon dioxide gas. What liquid is the gas bubbled into? [7f-77]
Some antacid indigestion tablets contain carbonates such as sodium hydrogencarbonate. Which of the following is a simple test to see if a tablet contains a carbonate? [7f-78]
Sometimes mineral ore sample can contain bits of free metal eg iron. Which of the following is a simple test to see if a rock contains bits of a metal? [7f-79]
Which statement is TRUE when the yellow solid sulphur is heated in air and then burns to form a colourless gas? [7f-80]
Which statement is TRUE when the yellow solid sulphur is heated in air and then burns to form a colourless gas? [7f-81]
Which statement is TRUE when the yellow solid sulphur is heated in air and then burns to form a colourless gas? [7f-82]
Which statement is TRUE when the yellow solid sulphur is heated in air and then burns to form a colourless gas? [7f-83]
The diagram shows a simple candle burning experiment and a graph of the results. What was the volume of the beaker that probably gave the least accurate result? [7f-84]
The diagram shows a simple candle burning experiment and a graph of the results. What volume of beaker would probably allow the candle to burn for 40 seconds? [7f-85]
The diagram shows a simple candle burning experiment and a graph of the results. What would be a reasonable estimate of the candle burning time if a 1500 cm3 beaker was used in the experiment? [7f-86]
The diagram shows a simple candle burning experiment and a graph of the results. during the experiment, what change happens to the gases in the beaker? [7f-87]
When water is added to baking powder the mixture steadily 'bubbles'. Which of the following is most likely to account for such an observation? [7f-88]
Which of the following statements best describes the arrangement of particles in a gas? [7g-1]
Which of the following statements best describes the arrangement of particles in a solid?[7g-2]
Which of the following statements best describes the arrangement of particles in a liquid? [7g-3]
Which of the following best describes what happens to the particles of water when it freezes? [7g-4]
Which of the following best describes what happens to the particles of ice when it melts? [7g-5]
Which of the following best describes what happens to the particles of water when it boils? [7g-6]
Which of the following best describes what happens to the particles of water vapour when it condenses? [7g-7]
Which of the following best describes what happens to the particles of water when it evaporates? [7g-8]
The table shows the melting points and boiling points of some substances A to D. Which substance is a solid at 25oC?
The table shows the melting points and boiling points of some substances A to D. Which substance is a liquid at 0oC?
The table shows the melting points and boiling points of some substances A to D. Which substance is a gas at 0oC?
The table shows the melting points and boiling points of some substances A to D. Which substance is a liquid at 30oC?
Air is in a bottle with a tight screw-top. When the bottle becomes warmer, the pressure inside increases because the molecules of air? [7g-13]
Air is in a bottle with a tight screw-top. When the bottle becomes cooler, the pressure inside decreases because the molecules of air? [7g-14]
When the air in a room becomes warmer a hanging balloon blown up with air becomes bigger because the molecules of air? [7g-15]
When the air in a room becomes cooler a hanging balloon blown up with air becomes smaller because the molecules of air? [7g-16]
The table shows the melting points and boiling points of some substances A to D. Which substance is a liquid at 20 oC?
The table shows the melting points and boiling points of some substances A to D. Which substance is a solid at 20oC?
The table shows the melting points and boiling points of some substances A to D. Which substance is a gas at -60oC?
The table shows the melting points and boiling points of some substances A to D. Which substance is a liquid at -10oC and a gas at 10oC?
When water vapour in a cloud is gradually cooled, rainwater is formed. This change of state is called? [7g-21]
Heat from the Sun changes water from liquid to a gas. This change of state is called? [7g-22]
Gases diffuse because they? [7g-23]
The table below shows the melting points and boiling points of substances A to D. Which substance is a gas at 25oC?
The table below shows the melting points and boiling points of substances A to D. Which substance is a liquid at 25oC?
The table below shows the melting points and boiling points of substances A to D. Which substance is a solid at 100oC?
The table below shows the melting points and boiling points of substances A to D. Which substance is a solid at 100oC?
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range 10oC to 90oC?
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range -120oC to 20oC?
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range 0o>C to 100oC?
The table below shows the melting points and boiling points of substances A to D. Which substance is suitable to use in a thermometer that measures in the range -4oC to 50oC?
Which of the following best explains why gases have a low density? [7g-33]











Water turning to a solid is called? [7g-37]
Butter on a hot plate is seen to be? [7g-38]
When water turns to steam it has been? [7g-39]
Which of these is a solid? [7g-40]
Which of these is a liquid? [7g-41]
Which of these is a gas? [7g-42]
Which of these is a gas? [7g-43]
Which of these is a solid? [7g-44]
Which of these is a gas? [7g-45]
Which describes sand? [7g-46]
Which describes carbon dioxide? [7g-47]
Which describes cooking oil? [7g-48]
Which describes a cream cake? [7g-49]
Which describes set concrete? [7g-50]
Which of A to D describes the smell of food? [7g-51]
Which of A to D describes petrol? [7g-52]
Which of A to D describes toothpaste? [7g-53]
Which of the following is the opposite of freezing? [7g-54]
Which of the following is the opposite of condensing? [7g-55]
Which of the following is the opposite of melting? [7g-56]
Which of the following is the opposite of boiling? [7g-57]
Which of the following is the opposite of evaporating? [7g-58]
Which of the following is the opposite of condensing? [7g-59]
Which of the following best EXPLAINS why liquids flow much more easily than solids? [7g-60]
Which of the following best EXPLAINS why some different liquids can easily and completely mix together? [7g-61]
Which of the following best EXPLAINS why liquids or solids have a high density compared to gases? [7g-62]
Which of the following best EXPLAINS why most solids expand on heating? [7g-63]
The word 'diffusion' means? [7g-64]
Gas pressure is caused by? [7g-65]
Which of the following best EXPLAINS why gases are easily compressed? [7g-66]
Which of the following best EXPLAINS why dust particles seem to 'dance' around at random when seen with a beam of sunlight? [7g-67]
The diagram shows an experiment using a light colourless gas (air) and a heavier brown coloured gas (bromine or nitrogen dioxide). The gases spread around in the gas jars by a process called? [7g-68]
The diagram shows an experiment using a light colourless gas (air) and a heavier brown coloured gas (bromine or nitrogen dioxide). The gases fully mix together because? [7g-69]
The diagram shows an experiment using a light colourless gas (air) and a heavier brown coloured gas (bromine or nitrogen dioxide). The gases can completely spread throughout the gas jars because? [7g-70]
Which of the following best EXPLAINS why the gas pressure in a metal cylinder containing oxygen gas, increases if it is heated? [7g-71]


MELTING is the state change from? [7g-76]
FREEZING is the state change from? [7g-77]
BOILING is the state change from? [7g-78]
CONDENSING is the state change from? [7g-79]
EVAPORATING is the state change from? [7g-80]
Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE? [7g-81]
Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE? [7g-82]
Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE? [7g-83]
Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE? [7g-84]
Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE? [7g-85]
Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE? [7g-86]
In winter freezing conditions can produce cracked milk bottles!
Problems can arise with railway steel track from changes in temperature.
Problems can arise with railway steel track from changes in temperature.
Problems can arise with railway steel track from changes in temperature.
Problems can arise with railway steel track from changes in temperature.
The graph shows the results of monitoring a hot liquid pure wax as it slowly cooled to room temperature. Which of the following can you deduce from the results? [7g-92]
The graph shows the results of monitoring a hot liquid pure wax as it slowly cooled to room temperature. Which of the following can you deduce from the results? [7g-93]
The graph shows the results of monitoring a hot liquid pure wax as it slowly cooled to room temperature. Which of the following can you deduce from the results? [7g-94]
The graph shows the results of monitoring a hot liquid pure wax as it slowly cooled to room temperature. Which of the following can you deduce from the results? [7g-95]
The graph shows the results of monitoring a hot liquid pure wax as it slowly cooled to room temperature. Which of the following can you deduce from the results? [7g-96]
Which of the following best EXPLAINS why the liquid in a glass thermometer expands with rise in temperature? [7g-97]
Starting with the solid, the graph shows the results of measuring the temperature of substance X as it was heated from a low to a high temperature. Which of the following is TRUE? [7g-98]
In winter freezing conditions can produce cracked milk bottles. In what way does water show UNUSUAL behaviour? [7g-99]
Problems can arise with railway steel track from changes in temperature.
Which of the following does the particle picture represent? [7g-101]




Which of the following means 'the solid substance particles completely mixes with the solvent particles'? [7h-6]










