When water evaporates into the clouds, there is condensation in the clouds....Water molecules attract to each other, getting bigger an bigger until the cloud is full and the water falls out as precipitation; snow, rain, hail or sleet!
How many drops of water can you put on a wax paper "cloud" before it gets too full and causes "precipitation". It was really hard because the water drops attract like magnets...The most drops we got were about 50.
Wonder: How long will it take a jar of water to completely evaporate into the air?
Hypothesis: The kids though anywhere from 1 day to 2000 days...
We shall see they all wrote their predictions in their science journals!
Water is amazing. Did you know it has an invisible force called surface tension? We tested surface tension by carefully putting droplets of water on pennies. Due to the force of Surface Tension some of us were able to get up to 40 drops of water on a penny without it spilling off. Why? Because the molecules of water pack themselves together on the edges add tops of the "water bubble"!
Welcome to First Grade!
Welcome to our classroom! Take a look around and check out what we are learning!