© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions1 Chemical Reactions.

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Presentation transcript:

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions1 Chemical Reactions

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions2 Q1. What gas do we need to breathe (respire)?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions3 A1. Oxygen

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions4 Q2. What gas is the fuel in a Bunsen burner?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions5 A2. Methane

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions6 Q3. What element in milk gives us strong teeth and bones?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions7 A3. Calcium

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions8 Q4. What is the scientific term for an upset stomach?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions9 A4. Indigestion

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions10 Q5. What do you call a chemical reaction between a substance and oxygen that gives out heat?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions11 A5. Burning or Combustion

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions12 Q6. What do you call the starting substances before a chemical reaction takes place?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions13 A6. Reactants

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions14 Q7. What do you call the substances formed in a chemical reaction?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions15 A7. Products

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions16 Q8. What element is present in all organic compounds?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions17 A8. Carbon

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions18 Q9. Name a hard form of limestone that is used to make statues?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions19 A9. Marble

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions20 Q10. Oil, gas and coal are all what??

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions21 A10. Fossil fuels

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions22 Q11. What environmental damage is caused by burning fuels that contain sulphur?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions23 A11. Acid rain

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions24 Q12. What do you call compounds that contain a metal, carbon and oxygen only?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions25 A12. Carbonates

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions26 Q13. What do you call a reaction that is very difficult to take back the other way?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions27 A13. Irreversible

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions28 Q14. Which metallic element is used to galvanise steel to reduce corrosion?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions29 A14. Zinc

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions30 Q15. What do you call medium sized solid lumps of a substance?

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions31 A15. Granules

© NTScience.co.uk 2005KS3 Unit 7f – Chemical Reactions32 Well Done! Now check your score