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Calderglen High School

1. Give some examples of background radiation?

Solar radiationRocksNuclear testing 

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2. What could you use to measure radiation?

 

Geiger-Muller tube 

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3. Nuclear fusion takes place in the sun.

Briefly describe what happens in this process.

Two “light” nuclei join together releasing energy.

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4. Where are new elements formed?

In the stars

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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)

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6. What metal is present if you see a blue / green flame?

Copper

(use your data book)

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7. What metal is present if you see a lilac flame?

Potassium

(use your data book)

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8. What metal is present if you see a yellow flame?

Sodium

(use your data book)

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Glucose and FructoseCalderglen High School

10. What would you use to separate a liquid from a solid?

Filtration

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11. What would you use to separate a mixture of gases or liquids?

Distillation

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