Earth Materials

A mixture of different minerals is called....

• Texture

• Rock

• Color

A good way to tell the hardness of a material is....

• Scrape it with a nail

• Smell it

• Put it in water

If you put a rock in vinegar, what would happen?

• It will explode

• It will cause bubbling and disintegrate

• Nothing unless the rock had calcite in it

How does evaporation help you study mock rocks?

• Separates the liquid part from the solid part

• Helps you decide what type of rock it is

What three word describe a rocks size? (Pick 3!)

• Diameter

• Color

• Circumference

• Depth

"It's reddish-orange" would describe a mineral's....

• hardness

• texture

• color

"A paper clip scratches it" would describe a mineral's....

• color

• hardness

• texture

What would a geologist find out to identify an unknown rock? (Pick all of the answers that are correct!)

• Color

• Texture

• Shape

• Hardness

• Size

How did you use evaporation dishes in class?

• After the water evaporated, it left behind crystals that you could identify

• After the water evaporated, it helped break the rocks into a lot of pieces

What is the difference between a rock and a mineral?

• A rock is made up of many minerals. A mineral is made up of only one mineral.

• A rock is made up of only one mineral. A mineral is made up of many minerals.