Types of Rocks
This rock forms when melted Earth materials cool and harden.
What is igneous rock?
A thin layer of loose material that covers most of Earth's surface.
What is soil?
This mineral keeps our teeth and bones strong.
What is calcium?
You can tell rocks apart by looking at these.
What are physical properties?
What is a mineral?
This type of rock forms when small pieces of Earth materials collect and become bound together. It forms in layers and may have fossils inside.
What is sedimentary rock?
What are topsoil, subsoil, and bedrock?
Name the mineral that we put on our food to add flavor.
What is halite?
This property tell you how rough or smooth a rock is.
What is texture?
Scientists and researchers look at this property in powder or streak form.
What is color?
This type of rock is formed when a rock is changed by heat and pressure.
What is metamorphic rock?
Name the three particle types found in soil.
What are sand, silt, and clay?
This mineral helps to carry oxygen in our blood to all of our body.
What is iron?
What are minerals?
Scientists and researchers look at this to see how shiny or dull minerals are.
What is luster?
In sedimentary rocks, these layers would most likely contain fossils.
What are the bottom layers?
What are weather rocks, humus, air, and water?
This type of mineral is found in pencils.
What is graphite?
Scientists and researchers see this with their eyes when classifying rocks.
What is color?
Scientists and researchers test this to see if minerals or easily broken or strong.
What is hardness?
Lava is a type of material that cools and hardens into this type of rock.
What is igneous rock?
This type of soil contains humus, air, sand, water, silt, and clay. It has lots of minerals and holds water well, so it is great for plants.
What is loam soil?
True or false: Minerals are not good for humans.
What is false?
Name the properties of rocks that scientists and researchers observe to classify rocks.
What are color, texture, and what minerals it is made of?
What is appearance?