We did a online lab on seismic waves to help detrmain how we know what the inside of the Earth looks like. What I learned is that we use earthquakes.
The way we determine if the layer is a solid or a liquid is P and S waves from earthquakes. A S wave can’t go through liquid and that is how we know that the outer core is the S waves stop when they get there. The way we know that the inner core is a solid is that when the P wave go through the liquid, they slow down but they speed up when they get to a solid again. The way we know that the crust and mantel are a solid is that both P and S waves go through them.
Lets all try to go a week starting Monday without our phones.
1. The first blog I went to took pics to show you step-by-step how to make an origami frog and gun.
2. The other blog I went to had the creator’s name in glitter text on the side bar. It also had a glob that spins around and tells you where people are who visit. He also had some cool post. The only thing that i would change is on the sidebar, there is still the thing that says welcome to your new blog.
Today we did a lab on density where we had to put solutions with food coloring in a stall but in a order that they will layer and not mix. It took my partner and I only 4 tries.
We went outside and we walked different lenghts to let us get an idea of how big the layers of the Earth are. It was really fun to get outside and to learn in a fun way.
One of my favorite things to do is play baseball. I found a few pictures that are about baseball.