Hot Rocks     

	First, we are trying to discover which rock will stay the coolest for our playground.
	Next, we had to gather information about the the problem. we investigated that lava floats and clay is used for kitty litter. Also marble is used for statues.
	Next, we had to make a hypothesis about the rocks. I thought the clay was going to be the coolest.
	Next, we had to perform the experiment. First we had to cover the containers with rocks in them. We covered the clear plastic wrap then we put them outside in the sun     return to home.