- Water is a kind of substance
- Water absorbs solar energy in the water cycle
- If a substance absorbs solar energy then that substance will increase in temperature
- Therefore, water absorbing solar energy will increase in temperature

- Water absorbing solar energy will increase in temperature
- Temperature is a measure of heat energy
- Therefore, water absorbing solar energy will increase in heat energy

- Water is a kind of substance
- Evaporation means a substance changes from a liquid into a gas by increasing heat energy
- So, evaporation of water is when water changes from a liquid into a gas by increasing heat energy

- Water absorbing solar energy will increase in heat energy
- Evaporation of water is when water changes from a liquid into a gas by increasing heat energy
- So, water absorbing solar energy will cause the evaporation of water

- Water absorbing solar energy will cause the evaporation of water
- The sun is a source of solar energy called sunlight
- Hence, in the water cycle the sun has the role of causing evaporation

Therefore, in the water cycle the sun has the role of causing evaporation
Q: The first step in the water cycle is evaporation. What gives water the energy to evaporate?
Context:
- The sun is a source of solar energy called sunlight 
- Water is a kind of substance 
- Water absorbs solar energy in the water cycle 
- Evaporation means a substance changes from a liquid into a gas by increasing heat energy 
- Temperature is a measure of heat energy 
- If a substance absorbs solar energy then that substance will increase in temperature