First of all he learned while doing his background research that lava while inside the volcano isn't lava -- it's magma. So he revised his question to how does Magma get into a volcano.
He studied the layers of the earth and then drew a picture of what he learned. Since he has trouble handwriting, he sat down at the computer and typed out the different layers, so we could attach them to his drawing for his poster board. We also worked on his bibliography.
His research said that magma gets into volcanoes because of the heat of the molten rock and gases (it makes it rise quickly) and the pressure from the shift of the Earth's plate tectonics. So we borrowed good old Janice Van Cleave's Volcano experiment book from the library and did two different density experiments.
The first one we poured room temperature water through a makeshift funnel into a beaker and timed it. The second one we poured hot water through a makeshift funnel into a beaker and timed it. Then we did the same with room temperature vegetable oil and hot vegetable oil. The more dense, hot liquid ran into the beaker the fastest.
Then on Saturday, we ate breakfast and watched Bill Nye DVD regarding the Earth's Crust. We love Bill. He's fantastic! It was another great library find. MacTroll took to constructing a device that will allow them to practice plate tectonics. This required the use of power tools, wood and plexiglas. The two of them running around in face masks and safety goggles was awesome. Then they both got to use the hot glue gun to put it together.
Anyway, we made our way over to the stadium. Our seats were pretty awesome, and X-man got a t-shirt and a stuffed Perry to take home. The next two hours were full of song and dance. It didn't look like many people were going to be there, but they all filed in at the last minute. X-man said he "loved" the show, but I loved how we spent the entire day together with absolutely no whining -- not even during the 2-hour drive there and the 2-hour drive home.