Water evaporates into the sky to form clouds when ___ there hasn't been rain for a long time. water particles slow down enough. water particles are moving fast enough. more air pressure is pushing down. Worksheet PrintWorksheet 1. How does heat turn boiling water into gas? Heat...
Worksheet PrintWorksheet 1. Which of the following planets is made up of mostly metal and rock? Jupiter Neptune Venus Saturn 2. What do some scientists think caused the explosion that began the formation of our solar system? gravity orbits ...