Rock Groups
What is a natural, solid, nonliving material made from one or more minerals?
A rock
What is a natural, nonliving material that makes up rock?
A mineral
What is the layer of loose material that covers most of Earth's land called?
Soil
Which type of soil has large rock particles?
Sand
What is the largest animal on Earth?
Blue whale
What are rocks made up of?
Minerals
What are 2 properties used to identify minerals?
Hardness and color
What are 2 things found in soil?
Tiny rocks (particles), air, water, and humus (organic matter)
Which type of soil has medium size particles that are more closely packed together?
Silt
What is the capital of the United States?
Washington D.C.
What type of rock is created from layers of sediment?
Sedimentary
What is the hardest mineral?
Diamond
What is the top layer of soil called?
Topsoil
Which type of soil has the smallest particles and holds water really well?
Clay
What planet is also called the "red planet"?
Mars
What type of rock is formed from cooled lava?
Igneous
What is the streak test used for?
To find the color of a mineral's powder
Why is organic matter important in soil?
It helps plants grow by providing nutrients.
What type of soil is a mixture of sand, silt, and clay?
Loam
How many hours are there in a day?
24
What type of rock is formed from heat and pressure?
Metamorphic
How can you tell if a mineral is metallic or non-metallic?
By it's shine or luster
What is the bottom layer underneath the soil called?
Bedrock
What is the name of the material made up of plants and animals that were once alive?
Humus
What is the process called where plants make their own food?
Photosynthesis