Unit B: Rocks and MineralsUnit B: Rocks and Minerals

Test ReviewTest Review

Earth ScienceEarth Science

Howard Middle SchoolHoward Middle School

Rocks and MineralsRocks and Minerals Which of the following statements is Which of the following statements is

TRUE?TRUE?

–All minerals are made of rocks.All minerals are made of rocks.

–All rocks are made of minerals.All rocks are made of minerals.

–Rocks and minerals are the same.Rocks and minerals are the same. The properties of a mineral depend onThe properties of a mineral depend on

–The type of mineral.The type of mineral.

–The size of the mineral.The size of the mineral.

–The number of minerals.The number of minerals.

Rocks and MineralsRocks and Minerals An example of a property of a mineral isAn example of a property of a mineral is

– How common it is.How common it is.

– Where it is found.Where it is found.

– How it reacts with acid.How it reacts with acid.

– How much it costs.How much it costs. Which of the following statements is TRUE?Which of the following statements is TRUE?

– Rocks can break down into sediments.Rocks can break down into sediments.

– New rocks form over time.New rocks form over time.

– Rocks can change from sedimentary to Rocks can change from sedimentary to metamorphic.metamorphic.

Rocks and MineralsRocks and Minerals The rock cycle describes how rocksThe rock cycle describes how rocks

– Change over time.Change over time.

– Are formed.Are formed.

– Are broken down.Are broken down. Which one of the following words is used to Which one of the following words is used to

classify rocks based on how they were classify rocks based on how they were formed?formed?

– IgneousIgneous

– GraniteGranite

– MineralMineral

– TransparentTransparent

Rocks and MineralsRocks and Minerals

GalenaGalena HematiteHematite MagnetiteMagnetite

HardnessHardness 2.52.5 6.56.5 66

ColorColor Silvery graySilvery gray Red to Red to blackblack

BlackBlack

MagnetismMagnetism Not Not magneticmagnetic

Not Not magneticmagnetic

Magnetic Magnetic

Rocks and MineralsRocks and Minerals Based on the table, which mineral is Based on the table, which mineral is

the hardest?the hardest? Which of the minerals could not be Which of the minerals could not be

scratched by the other minerals?scratched by the other minerals? Which property would be the most Which property would be the most

useful in telling hematite and magnetite useful in telling hematite and magnetite apart?apart?– Explain why you chose this property.Explain why you chose this property.– Explain why you did not choose each of Explain why you did not choose each of

the other properties.the other properties.

Rocks and MineralsRocks and Minerals

Hallie finds a dark stone. It is not Hallie finds a dark stone. It is not magnetic. Name at least three things magnetic. Name at least three things she could do to help identify it.she could do to help identify it.

What is the rock cycle? In your What is the rock cycle? In your explanation, be sure to describe how the explanation, be sure to describe how the three major types of rocks are formed.three major types of rocks are formed.