Physics & Chemistry Model Test
Physics & Chemistry Model Test
Physics & Chemistry Model Test
2. KOH is an ______
A Alkali C Salt
B Acid D None of them
9. When you add vinegar in baking powder, a gas is evolved. What is that gas?
A Carbon dioxide C Carbon monoxide
B Oxygen D Hydrogen
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b. State The Theory of Continental Drift. [2]
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c. Which tectonic plate do you live on and What causes the tectonic plate to move? [2]
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4.
a. Explain why a solar eclipse can only ever be seen in the daytime. [3]
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b. Which is the widest section of the Earth, and what is its thickness? [2]
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A. solid
B. liquid
C. gas
D. Vacuum
5. Which statement describes what happens to a sound to make an echo?
6. Which one of these will give the best echo in a room? All of the materials have the same
area.
A. soft curtains
B. glass window
C. thick carpet
D. wool blanket
7. Which statement is true about tectonic plates?