ROCK ON, EARTH!

Inside Earth with Rocks and Minerals by Drew G.

How do plates move?

The plates move according to the Theory of Plate Tectonics, which states that pieces of earth's lithosphere are in slow, constant motion, driven by convection currents in the mantle. To show how fast these plates go, you should think of them only going a couple inches a year. Yeah, that slow. A scientist named Alfred Wegener had a hypothesis that there was once a supercontinent named Pangaea. Over time, Pangaea separated into what earth is today. These plates move from the movement of convection currents in the mantle is the major force that causes plate motion. The edges of Earth's plates meet at plate boundaries. The three boundaries that exist are the divergent, convergent, and transform boundaries.

Erosion, the Thief of Rocks

Erosion

In Erosion, running water, wind, or ice loosen and carry away fragments of rock. The three main types of erosion are water, wind, and ice. Out of the three types of erosion, ice erosion is the most dangerous. Ice erosion is like a powerful eroding machine. The ice erosion is also like a sandpaper, the more it collects, the more force it contains. The ice erosion is so powerful it can carve valleys. The least dangerous erosion type is the water erosion. The water erosion carries weathering products down the stream. This type of erosion actually kind of helps by creating deltas, beaches, wetlands, etc.

My Spring Break

Over my spring break all i did was relax and hang out with my friends. I didn't travel anywhere special so I didn't have much to do. It may not sound fun but it wasn't that bad actually. In fact, I'd say I had a good spring break.

Fossils, they aren't just your parents

Minerals and rocks, the Dynamic Duo

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The Rock Cycle

Throughout the rock cycle, igneous, metamorphic, and sedimentary rocks change continuously. This is how the Rock cycle works, when volcanic activity occurs, it turns to Igneous Rock. When an igneous rock erodes it turns to sediment. When it applies heat and pressure it turns to Metamorphic Rock. When sediment has deposition it turns to sedimentary rock. When a sedimentary rock melts it turns back to a volcano. When a sedimentary rock erodes it turns to sediment. When a sedimentary rock applies heat and pressure it turns to metamorphic rock. When a metamorphic rock melts, it turns back to a volcano. When a metamorphic rock erodes it turns to sediment as well. That's the whole rock cycle. Even though it may be confusing, it's a pretty cool cycle.
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Minerals

Many minerals form from magma and lava. Minerals form as hot magma cools inside the crust, or as lava hardens on the surface. When these liquids cool to a solid state, they form crystals. The other way minerals form is the elements and compounds that form minerals can be dissolved in water to form solutions. When that happens, crystallization occurs. Minerals can form in this way underground and in the bodies of water on Earth's surface. Each mineral has characteristics that can be used to identify it. You can see some of the properties of a mineral just by looking at a sample. To observe other properties, however, you need to conduct tests on that sample.

What I enjoyed in this unit

What I enjoyed was all the hands-on projects we did that really showed what happens in real life today. I thought that was really cool and I also thought that all the amazing facts about Earth I learned about that I had no idea about. Inside Earth turned out to be really cool!