What are Rocks?

• Dirt that has dried together in a ball.

• Hard pieces fo minerals that occur naturally in the world.

• Hard pieces of glass that has turned gray.

• Tiny parts of a cliff that has broken and fallen down to the ground.

What is a geologist?

• A person who operates on people in the hospital.

• A scientist who studies the moon and the stars.

• A scientist that studies rocks, the earth, and how the planet changes over time.

• A person who creates fancy meals for people to eat.

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How are igneous rocks made?

• Igneous rocks are made when magma from volcanos cools and hardens.

• Igneous rocks are made in a factory and spread by large trucks.

• Igneous rocks fall of cliffs and roll down hills until they are round.

• Igneous rocks are made by Santa's elves at the North Pole.

How are sedimentary rocks formed?

• Sedimentary rocks are formed by pieces of hard garbage piling up until they become rock.

• Sedimentary rocks are formed by pieces of sediment being deposited over an area over time.

• Sedimentary rocks are formed by rocks that break apart when they get hot or cold.

• Sedimentary rocks are formed during bad storms when the wind blows the waves and hail hits the ground.

Where are metamorphic rocks formed?

• Metamorphic rocks are formed deep in the earth's surface.

• Metamorphic rocks are formed in space and are part of asteroid belts.

• Metamorphic rocks are formed in the ocean and have salt water trapped inside.

• Metamorphic rocks are formed in Ancient Greece near olive trees.

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What are the first 3 steps in the Rock Cycle

• Lava erupts from a volcano, cold winds cool the rocks, the rocks are buried in the ground.

• Rocks work their way up from the ground, lava is buried in the ground, a volcano erupts.

• Rocks float up from the bottom of the ocean, rocks get stuck in a volcano, the volcano erupts and rocks fly out.

• Lava erupts from a volcano, lava cools to form igneous rocks, igneous rocks erode into sediment.

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Rocks can be sorted into different ways. Click on all the ways rocks can be sorted (there is more than one answer).

• Rocks can be sorted by size.

• Rocks can be sorted by color.

• Rocks can be sorted by texture.

• Rocks cannot be sorted, this is a myth.

What are minerals?

• Minerals are coins that can be used in Canada to buy things.

• Minerals are something in milk that makes you happy.

• Minerals are hard substances that happen naturally in the earth.

• Minerals are large, sharp points on the edge of a rock.

What is the difference between rocks and minerals?

• Rocks sink and minerals float.

• Rocks can be used for more things than minerals can be used for.

• Minerals are hard substances that contain elements, rocks are hard objects that are made up of two or more minerals.

• There is no difference between rocks and minerals.

How can someone determine how hardness of a mineral?

• By testing how easily it is scratched.

• By throwing it on the ground to see if it breaks.

• By using water to see if it floats.

• By cracking it in half and looking at it.