Starter quiz
- Which state of matter has no fixed shape, but a definite volume and can flow?
- a, liquid ✓
- b, solid
- c, gas
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- The ______ point is the temperature at which a liquid turns into a gas.
- 'boiling' ✓
- Which state has the weakest forces of attraction between the particles?
- solid
- liquid
- gas ✓
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- Which state of matter undergoes a change in volume when compressed?
- solid
- liquid
- gas ✓
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- The two beakers below, with the same volume of water in each, were left in a room. Select all the true statements about Beaker A.
- Dries up first.
- Smaller surface area of water. ✓
- Less particles at the surface in touch with the air. ✓
- Wider than the other beaker.
- The water is spread out over a greater area.
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- It is winter. The bird bath in the school garden needs refilling. Some primary children discuss whether evaporation could be the reason that the bird bath is empty. Which reason is correct?
- The sun is not powerful enough to dry up the the bird bath in the winter.
- The sun evaporates the water in the summer but cannot in winter.
- There are still sunny days in the winter which can dry up the bird bath.
- Water can still evaporate even if the weather is not sunny. ✓
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