Properties and Types of Rocks

Front

What type of rock is formed from the cooling of magma?

Back

Igneous rock is formed from the cooling and solidification of magma or lava.

Front

What property are you testing when you rub a rock on a clay plate?

Back

You are testing the streak of the rock, which is the color of the powder left behind.

Front

Which property is NOT considered a property of minerals?

Back

Texture is not considered a property of minerals; the main properties include streak, hardness, and color.

Front

What type of rock is formed from heat and pressure?

Back

Metamorphic rock is formed from existing rocks that change due to heat and pressure.

Front

What does it mean if a rock is described as extrusive igneous?

Back

It means the rock was formed from lava that erupted onto Earth's surface.

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles.

Front

What is the definition of hardness in relation to rocks?

Back

Hardness is a measure of how resistant a rock is to being scratched.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface, while lava is magma that has erupted onto the surface.

Front

What is a mineral?

Back

A mineral is a naturally occurring, inorganic solid with a definite chemical composition and crystalline structure.

Front

What is the streak test used for?

Back

The streak test is used to determine the color of a mineral in powdered form.