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3. 1. Give some examples of background radiation? Solar radiation Rocks Nuclear testing answer Calderglen High School

4. 2. What could you use to measure radiation? Geiger-Muller tube answer Calderglen High School

5. 3. Nuclear fusion takes place in the sun. Briefly describe what happens in this process. Two “light” nuclei join together releasing energy. answer Calderglen High School

6. 4. Where are new elements formed? In the stars answer Calderglen High School

7. 5. How could you measure the pH of a substance? pH paper or universal indicator – add to sample, check colour, compare to colour chart. pH paper or universal indicator – add to sample, check colour, compare to colour chart. pH meter (electronic method) answer Calderglen High School

8. 6. What metal is present if you see a blue / green flame? Copper (use your data book) answer Calderglen High School

9. 7. What metal is present if you see a lilac flame? Potassium (use your data book) answer Calderglen High School

10. 8. What metal is present if you see a yellow flame? Sodium (use your data book) answer Calderglen High School

11. answer  Glucose and Fructose Calderglen High School

12. 10. What would you use to separate a liquid from a solid? Filtration answer Calderglen High School

13. 11. What would you use to separate a mixture of gases or liquids? Distillation answer Calderglen High School