Science Grade 3 Chapter 5 Vocabulary

What is a mineral?

• The color of the powder that a mineral leaves when it is rubbed across a surface

• The way a mineral reflects light

• A natural material that forms from nonliving matter

• Rocks that form from sediments

What is luster?

• The way a mineral reflects light

• A large rock worn down by water

• A natural material that forms from nonliving matter

• The color of a powder that a mineral leaves when it is rubbed across a surface

What is a streak?

• An important material from Earth that living things need

• The color of the powder that a mineral leaves when it is rubbed across a surface

• A natural material that forms from nonliving matter

• The way a mineral reflects light

What is a rock?

• Rock that forms from sediments

• Rock that has been charged by heat and pressure

• Very fine particles of earth and sand carried by moving water

• A natural, solid, nonliving material made of one or more materials

Rock changed by heat and pressure

• Sedimentary Rock

• Metamorphic Rock

• Igneous Rock

• Sedimentary Rock

Rock that forms from sediments

• Igneous rock

• Metamorphic rock

• Sedimentary rock

• Rock

Rocks formed when melted rock cools and hardens

• Fossil

• Igneous rock

• Metamorphic rock

• Sedimentary rock

What is a boulder?

• A large rock that is rounded or worn down by water and weather

• Very fine particles carried by moving water

• A tool for separating materials

• Very fine particles of earth and sand

Very fine particles of earth and sand carried by moving water

• Boulder

• Beach

• Silt

• Sieve

A tool for separating materials

• Rake

• Hammer

• Sieve

• Silt