"I try to figure out when many trees will die together" #myPhD on #UpGoer5 goo.gl/W08V2

I try to figure out when many ...

The ground we live on is the top of a moving rock area that is really hot. The ground we live on is broken up into little rocks. Sometimes the little rocks move on top of each other. This makes the rocks get really tall. Sometimes one goes under the other one. The under rock gets really hot and becomes the moving rock under the ground. The moving rock under us sometimes comes up through the ground making new hot rock. [J. G.]
#PlateTectonics #UpGoer5 #EarthSystemScience #McGillUniversity

Upon death, living things either break down as the surrounding air, in a way, quickly eats up what is left of them or, they get covered under ground when not broken down. As the ground layer above gets bigger and heavier, the remains are pressed into a different and thicker form of matter. It takes a lot of time for the ground layer to grow heavy enough to change the state of the matter in such a way. Those old remains can then be burnt for power.
[V. B.]
#FossilFuels #UpGoer5 #McGillUniversity

The really big ball that we live on is made of huge pieces of ground that move around. Sometimes they knock into each other, run away from each other, or slip side to side. If two of them get stuck, power builds up in the rock and lets go as they are set free. The ground shakes a lot, large cracks form, rocks might slip down, and houses fall. If that happens in the big water area, a very tall wave will move onto the land and run into it. [M. T.]
#Earthquake #UpGoer5 #McGillUniversity

Another group of #EarthSystemScience #UpGoer5 Change that happens quickly and continues to grow. The growing that happens begins to happen faster and faster than it did at the start. The number of people in the world is a good way to understand this. It grows faster and faster than it did before. [K. A.]
#ExponentialGrowth #McGillUniversity

#UpGoer5 As the number of people gets bigger in an area, the number of stuff that is able to back them up gets lower. The number of people found in a place is controlled by what is going on around them; such as how much food, water and homes found. When the total of how much of these is found around them gets lower, the total number of people coming into this world gets less. They then reach a still state where the number of people stops getting big. [L.N.] #CarryingCapacity #McGillUniversity

More #EarthSystemScience #UpGoer5
Trees can tell us is what the world was like in the past. The rings inside a tree can show us how much it grew each year. In wet years, the tree will grow a thick ring, and in dry years, it will grow a small ring. People can study tree rings to see how hot and cold the world has been and how it has changed over time. It helps us understand how the world is changing now and how it may change. [S. H.-R.]
#Proxies #McGillUniversity #SimpleWords