KS3 Chemistry
year 7

what are the three states of matter?

what's the name of converting a solid to a liquid?

what happens when you overheat a liquid and why?

what's the name of turning a gas to a liquid?

what's the difference between solute and solvent?

what's evaporation?

how is filtration done?

what does insoluble mean?

what does saturated mean?

what color is blue litmus paper in an alkali?

what is neutralization?

how do antacid pills work?

what is a base?

what is the difference between a chemical and physical reaction?

what are reactants?

acid + metal oxide=

what is the test for hydrogen?

what is the test for carbon dioxide?

what do you need to start a fire?

what is combustion?

what is an oxide?