Explain one way the water cycle affects climate. use 3-4 sentences to explain. (complete sentences)

Ah, this is simple m8. First thing you learn about the water cycle: The stages.

So, you have 4 stages in the water cycle. Collection, evaporation, condensation, precipitation. Most only learn about 3 stages, but the fourth is just a bonus for better explanatory purposes. 

1: Collection is basically just any water in a collected area. Simple. Oceans, Seas, rivers, lakes, etc. It starts with this.
2: Evaporation. The sun=heat. Heat+water= evaporation. Evaporation is the change of state from a liquid to a gas. In this case, water is turning to a gas state, and floating up into the sky.
3. Condensation. This is when the collected water vapor, or gas, starts building up. This forms clouds. Enough of the vapor forms, then you have a good rain about to happen.
4. Precipitation. This is when all that water vapor shoots back into liquid form, into what we call "rain." The rain goes everywhere, and it all goes right back to collection, just to start over again.

Your The water cycle can impact climate heavily or lightly. The amount of heat applied from the sun can affect how much water vapor is released into the air. This, in turn, affects how much water vapor condensates. If a lot condensates, then you'll have more rain, and possibly a storm. If it's a light amount, you may just get a light drizzle. This is how the water cycle can affect climate. 

Since you're middle school level, I recommend you tone down my answer a bit, to a middle-scholars-level. But after you rephrase this a bit, you'll have your answer.

~Hope this helps!