Natural disasters
Hannah
plate movements
We can tell that the plates have moved because we all used to be together called Pangaea. After millions of years we started to slowly drift apart and become separate. So therefore we can tell that the plate tectonics have moved apart. Geologists say that the movements of convection currents in the mantle is the major force that causes plate motion. The types of boundaries are divergent , convergent, and transform boundaries.
volcano
A volcano can change the surface by lava cooling into rocks and it can change the dimensions to the earth.
tsunami
A tsunami can change the earth 's surface by washing away all the homes and cars or anything in the tsunami's way/path.
tornado
A tornado can destroy anything in it way/path and will effect on the people and the community of the town/state or even the city.
erosion
Erosion is running water, wind, or ice loosen and carry away fragments of rock. Three types of erosion are deposition, compaction, and cementation. Deposition is the largest changes to the earth's surface because the particles are loose and they can wiggle around. Cementation can have the least impact on the earth's surface because they are tight together rather than moving around.
bloomington Junior High School
We are part of the district 87 schools. are colors are purple, white, and black.
fossils
Superposition
Superposition can tell you the layers of the earth's mountains or even hills.
fossils
the further down we dig the more things we can learn from the past from long ago.
different fossils
All fossils are not the same because there were different types of animals and plants back then. So all of the fossils can't be the same if there were different kinds of plants and animals.
Rocks and Minerals
igneous rocks
Igneous rocks are classified according to their origin, texture, and mineral composition. They form from the cooling of magma or lava.
metamorphic rocks
metamorphic rocks forms when an existing rock is changed by heat, pressure, or chemical reactions. Most metamorphic rocks form underground.
Sedimentary rocks
sedimentary rock form when particles of other rocks or the remains of plants and animals are pressed and cemented together. sedimentary rocks forms in layers that are buried below the surface.
the rock cycle
An igneous rocks erosion can turn into sediments and then that can become sedimentary rock. The sedimentary rocks can melt into metamorphic rocks and that becomes magma and lava, and the rock cycle will start all over again.
minerals
One way a mineral can form as hot magma cools inside the crust. Another way a mineral can form as lava hardens on the surface. When these liquids cool to a solid state, they form crystals.
What i liked about this project
I really liked how we had to use this website. I also really liked the idea that it wasn't like we had to write alot on paper because i think using the computer is alot more organized. It also helps the teacher so she/he doen't have to ask you what you wrote because of your hand witing.