Rocks and Minerals Day 2

What is the hardest mineral on earth?

• talc

• diamond

• obsidian

• gold

If you were to able to scratch the mineral, graphite with your fingernail, what does that tell you?

• It is very hard and doesn't scratch.

• It was not very hard and the fingernail was harder.

• Graphite is a 5 on the Moh's Hardness Scale.

• Your fingernail will break.

A _____________ is a scientist who studies rocks and minerals to learn about the Earth.

• scientist

• rockologist

• geologist

• mineralist

______________ describes the way an object feels.

• luster

• hardness

• streak

• texture

What type of information does the Moh’s Scale provide?

• It organizes minerals from the softest to the hardest.

• It tells what can scratch what.

• It tells the hard minerals.

• It tells the objects used to show soft minerals.

What is a solid material made up of one or more minerals called?

• A mineral

• A rock

• A geologist

• A mineralist

_______ describes the shininess of a mineral.

• hardness

• streak

• luster

• color

_______________ determines how easily a mineral can be scratched.

• luster

• color

• streak

• hardness

Rocks usually consist of _________________

• more rocks

• a mineral

• igneous rocks

• 2 or more minerals

The ________ identifies the hardness of ten common minerals.

• Moh's Hardness Scale

• Bobby's Mineral Scale

• science book

• Moh's Softness Scale