Rocks and Minerals (Grade 3)

Front

What are the 3 major types of rocks?

Back

Igneous, Metamorphic, Sedimentary

Front

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this? Options: Sedimentary, Igneous, Metamorphic

Back

Sedimentary

Front

The Mohs scale is used to tell the ___________ of a mineral.

Back

hardness

Front

Hot, molten rock inside the earth is called ...

Back

magma

Front

Once magma reaches the earth's surface, it is called __________.

Back

lava

Front

A person who studies the properties of rocks to tell how the rocks may have been formed are ____________. Options: mineralists, geologists, rock stars, rockologists

Back

geologists

Front

Emily was looking at a rock and saw tiny crystals. Emily should know that all rocks are made up of _____ (Options: diamonds, minerals, fossils, dirt).

Back

minerals

Front

How do people use rocks?

Back

for building materials, cleaning, making glass and decorating

Front

Rocks that come from hot lava and magma that is cooled and hardened are called:

Back

Igneous

Front

Rocks that are made from bits of rock that have been pressed together under water are called: Metamorphic, Igneous, Sedimentary, Moonstone

Back

Sedimentary