Science KS 3 Unit 7F Simple chemical reactions

In this unit pupils:

• are introduced to the idea that chemical change results in new substances that are different from the ones from which they were made.
• explore some simple chemical reactions of acids in which a gas is made.
• explore burning as a chemical reaction involving a gas, air or oxygen.
• identify hydrogen and carbon dioxide as substances made during some of these reactions.
• work with gases to understand that gases are real materials.
• begin to use word equations as shorthand descriptions of reactions.

In scientific enquiry pupils:

• learn techniques for testing for gases, using laboratory equipment effectively and taking action to control risks.
• present observations in ways which enable patterns to be seen.
• make generalisations from observations.
• suggest and evaluate explanations of observations.
• investigate the role of air in the burning of a candle.


This unit is expected to take approximately 7 hours.

OTHER RESOURCES

• corroded metals
• building materials including carbonate rocks, eg chalk, marble
• carbonated water
• computer and software to produce information leaflet
• cards on which are written words, phrases and statements about chemical reactions