Minerals and Rocks
Kinds of Soils
Fossils and Fuels
Water
Saving Our Resources
100
Rocks that form when melted rock cools and hardens. They are considered "fire-made" rocks
What are igneous rocks?
100
This layer is found beneath subsoil
What is bedrock?
100
The imprint or remains of something that lived long ago
What is a fossil?
100
Water held in rocks and soil below the surface of the land
What is groundwater?
100
A resource that can be replaced or used over and over again, such as soil and water
What is a renewable resource?
200
Rocks that form when sand, mud, and pebbles at the bottom of bodies of water pile up
What are sedimentary rocks?
200
The layer of soil where a lot of humus and minerals are found
What is topsoil?
200
Hardened tree sap - the source of many insect fossils
What is amber?
200
To use something wisely, not wastefully - as we should do with water
What is conserve?
200
A resource that cannot be reused or replaced easily, such as fossil fuels and minerals (gems and metals)
What is a nonrenewable resource?
300
Rocks that change form through squeezing and heating
What are metamorphic rocks?
300
Soil forms quickly: true or false
What is false?
300
Most fossils are found in this type of rock
What is sedimentary?
300
The part of the water cycle that occurs when water changes from a gas to a liquid
What is condensation?
300
This occurs when harmful materials get into water, air, or land
What is pollution?
400
All rocks are made of these substances found in nature that are not plants or animals
What are minerals?
400
The type of soil that would hold more water: sandy or clay
What is clay?
400
The fossil fuel formed from dead swamp plants
What is coal?
400
The part of the water cycle that occurs when water changes from a liquid to a gas
What is evaporation?
400
A material on Earth that is necessary or useful to people
What is a natural resource?
500
A property of a mineral that tells how well it reflects light
What is luster?
500
A material that was once living or was formed by a living thing that adds nutrients to soil
What is humus?
500
The three main fossil fuels
What are oil, coal, and natural gas?
500
The percentage of Earth's water that is fresh
What is 3%?
500
The three main ways of conserving Earth's resources
What are reduce, reuse, and recycle?
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