Download - Chapter 5 Earth’s Resources. What occurs when harmful materials get into the water, air, or land?
Chapter 5Earth’s Resources
What occurs when harmful materials get into the water, air,
or land?
Pollution
What is it called when we use our resources wisely?
Conservation
What can hardened tree sap become after a long time?
Amber
What is water that is held in soil and rocks underneath the
ground called?
Groundwater
What kind of resources are water, soil, and air?
Natural
Resources
What are the remains of plants and animals that lived long ago
called?
Fossils
What are rocks made of?
Minerals
What happens when water vapor cools?
Condenses into water droplets
What do cars need to run?
Fuel
How are igneous rocks made?
Melted rock cools and hardens
List three characteristics of topsoil.
It has lots of humus.
It has lots of minerals.
It holds water.
Give an example of a nonrenewable resource.
Metal
How long does it take to create fossil fuels?
Millions of years
In what type of rock are you most likely to find fossils?
Sedimentary
If a town needs more water what can they build that will
connect them to a water source?
An Aqueduct
In which layer of soil are crops planted?
Topsoil