Minerals & Rocks

What is a mineral?

• an organic substance that is from plants

• an inorganic substance found naturally in the earth

• organic particles in soil

• loose material on the surface of the earth that is made of bits of weathered rock and other materials

What is soil?

• an organic substance that is from plants

• an inorganic substance found naturally in the earth

• organic particles in soil

• loose material on the surface of the earth that is made of bits of weathered rock and other materials

T/F: Inorganic substances have never been alive.

What is humus?

• an organic substance that is from plants

• an inorganic substance found naturally in the earth

• organic particles in soil

• loose material on the surface of the earth that is made of bits of weathered rock and other materials

T/F: Organic substances do not come from plants and animals that were once alive.

Tags

NGSS.HS-LS4-1

A scientist who studies minerals is called....

• mineralogist

• lapidary

• geologist

What characteristics are used to identify mineral samples?

• crystal structure

• color

• luster

• hardness

• cleavage

What is a streak?

• the way that a mineral reflects light

• how easily it resists scratching

• the color of the mark made by rubbing the mineral sample on a harder surface

• the breaking of a mineral along smooth, straight lines or into flat sheets

What is luster?

• the way that a mineral reflects light

• how easily it resists scratching

• the color of the mark made by rubbing the mineral sample on a harder surface

• the breaking of a mineral along smooth, straight lines or into flat sheets

What is the hardness of a mineral?

• the way that a mineral reflects light

• how easily it resists scratching

• the color of the mark made by rubbing the mineral sample on a harder surface

• the breaking of a mineral along smooth, straight lines or into flat sheets