Rocks and Minerals
What is a rock?
A rock is a nonliving part of Earth.
What is soil?
Soil is a mix of tiny rocks and bits of dead plants and minerals.
Name two natural resources.
Wind, water, land, rocks, soil etc.
What is a mineral?
Hard, nonliving parts of soil that makes up rocks
Some rocks are softer than your fingernails. True or False?
True
Fill in the blank.
Some soils are darker and hold more _________.
Water
What natural resources can be replaced quickly?
Wind and water
What is decompose?
Decompose means to break down or rot.
How do people use rocks?
People use rocks to build homes, make tools, and build roads.
How is soil formed?
Soil is formed when bits of rock break down ,and the dead plants and animals decompose.
What is pollution?
Pollution is when you make the land, air, and water dirty.
What is a natural resource?
A natural resource is something that people can use from Earth.
All minerals are made up of rocks. True or False?
False
Compare topsoil and subsoil. Name one difference.
Topsoil has more nutrients than subsoil.
How can we conserve natural resources?
By using the 3 Rs: Reduce, reuse, and recycle
What does reduce and reuse mean?
Reduce means to cut down or use less.
Reuse means to use again.
How are rocks and minerals different?
Minerals make up rocks. Rocks can be made up of one or more minerals.
Explain what will happen to a dead animal over time.
It will decompose and become part of the soil.
What can harm Earth's resources?
pollution, natural disasters, animals, and people
What does renewable mean?