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What is melted rock called when it is still inside the earth?
magma
What is the sphere that consists of all the life on Earth?
biosphere
What is igneous rock?
Rock that forms when magma cools.
This sphere is the earth itself. It also includes events such as volcanoes and earthquakes.
geopshere
What is the envelope of gases that surrounds a planet called?
atmosphere
What is the core of the earth?
The inner layer of the earth
What are metamorphic rocks.
Rocks that form when other rocks are transformed under intense heat and pressure.
What is the mantle of the earth?
The middle layer of the earth. It consists mostly of solid rock, but also some magma.
The imaginary line that goes through the center of the earth.
axis
What is chemical weathering?
When Earth's crust is broken down and the minerals that make up the rocks change into new minerals.
What are two examples of chemical weathering?
A rusty piece of metal; Stalagmites and stalactites in a limestone cave; etc.
This sphere is the system of water on Earth in all of its forms.
hydrosphere
What are sedimentary rocks?
Rocks that form when sediment makes layers and the layers are pressed together.
What is magma called when it is pushed out into the air, for example through a volcano?
lava
What is the crust of the earth?
The thin, outer layer of the earth. It's like the skin of the earth.
What is weathering?
When Earth's crust is broken down. It changes the sizes and shapes of the material in the crust.
