Grade 3 Rocks and Minerals

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

• Metamorphic
• Igneous
• Sedementary
• Comets

A mineral is a living object

• True
• False

All rocks contain at least one mineral.

• True
• False

Rocks that are made from bits of rock that have been pressed together under water are called:

• Metamorphic
• Igneous
• Sedementary
• Moonstone

Minerals can be used to make things we need

• True
• False

Sand, soil, and decayed organisms ___________________ to become sedimentary rock.

• use pressure and heat
• cool and harden
• pile up and cement together

We use the Moh's Scale to measure the ______________ of a mineral.

• color
• texture
• streak
• hardness

Which of these is NOT a property of minerals?

• luster
• hardness
• scratch
• streak

Rocks that have been changed into a different kind of rock from heat, time and pressure are called:                                                                                                                                                                  

• Metamophic
• Igneous
• Sedementary
• Rocky

Rocks can break down into sediments, but they never re-form.

• True
• False