1. Heat from the sun gets to the earth by which process?
2. What is the chemical symbol of gold?
3. What is steel?
4. Bronze is an alloy made from what two metals?
Copper and zinc
Copper and nickel
Copper and silver
Copper and tin
5. What metal has the chemical symbol of Pb?
6. Which acids do lemons contain?
7. Which acid is found in bee venom?
8. What is the main gas found in the air we breathe?
9. Olympus Mons is a large volcanic mountain on which planet?
10. What is the name of the substance that gives skin and hair its pigment?
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