The Different Units of Earth

Dominick Saylor

Evidence of Plates Movement

Earthquakes are pieces of evidence of the plates moving. There are different landscapes such as mountains. Mountains show that the plates are moving towards each other. Pangaea is an old model of how the earth looked like billions of years ago! This shows that the plates move slowly. All plates have fault lines. But, only some you can see. There are 3 different faults. Such as a normal fault. These happen when plates pull apart from each other. A strike-slip fault is where two plates grind against each other. A reverse fault is where the plates push against each other.

Rocks and Soil

Erosion

Erosion is a type of weathering in which rocks and soil are worn away by water and air, and even glaciers. Wind, water, and ice. Water is the most effective type of erosion. Air is the least effective type of erosion.

Fossils

Rocks and Minerals

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Rock Cycle

Forces deep inside the earth and at the surface produce a slow cycle that builds, destroys, and changes the rock in the crust.
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Diamond

Diamonds are made of carbon so they form as carbon atoms under a high temperature and pressure; they bond together to start growing crystals.

Identifying minerals

You identify minerals by streak, color, shine, and hardness.

What I enjoyed this unit

I enjoyed when we did the streak test and looked at the different minerals.