Week of 1/5

Week of January 5th

This week we learned how to determine how old a rock is. To find that out you can use the Law of Superstition, which is that the older rock layers are at the bottom because younger rock layers are deposited over the older rock layers.

We Also learned about convection currents. When the particles are moving faster they become less dense and the lava underneath the lithospere rises up. When the particles move slower they become more dense and the lava sinks back to the bottom. This process repeats itself over and over again.