Laboratory Work Exercise
Read and write the three states of matter.
Water exists in three states: liquid, solid and gas.
When it rains you can see that water is liquid. The molecules are not close and the ties are not strong.
Snow and ice are the solid state of water Water becomes ice below 0°C degree.
Their molecules are very close.
When you heat ice at 100°C degree it becomes gas.
1. Put the water into a fridge then it becomes ……………………….. .
2. Heat the ice at 100°C degree then it becomes ……………………….. .
3. When it evaporates put a glass on it and see that it becomes ……………. .
4. Heat the ice at 50°C degree then it becomes …………………..
Answers:
1. a solid 2. a liquid 3. gas 4. a liquid
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