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Calderglen High School
1. Give some examples of background radiation?
Solar radiationRocksNuclear testing
answer
Calderglen High School
2. What could you use to measure radiation?
Geiger-Muller tube
answer
Calderglen High School
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
4. Where are new elements formed?
In the stars
answer
Calderglen High School
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 meter (electronic method)
answer
Calderglen High School
6. What metal is present if you see a blue / green flame?
Copper
(use your data book)
answer
Calderglen High School
7. What metal is present if you see a lilac flame?
Potassium
(use your data book)
answer
Calderglen High School
8. What metal is present if you see a yellow flame?
Sodium
(use your data book)
answer
Calderglen High School
answer
Glucose and FructoseCalderglen High School
10. What would you use to separate a liquid from a solid?
Filtration
answer
Calderglen High School
11. What would you use to separate a mixture of gases or liquids?
Distillation
answer
Calderglen High School
