Show:
Minerals
Rocks
Rocks #2
Weathering & Erosion
Challenge
100
A solid object, formed in nature, that has never been alive.
What is a mineral?
100
A naturally formed solid made up of one or more minerals.
What is a rock?
100
These rocks are found near volcanos.
Where are igneous rocks found?
100
This is the way that rocks are broken down into smaller pieces.
What is weathering?
100
Fast moving water carries dirt and small rocks down a river and moves them to a new location.
How can a river change shape?
200
Some examples are gold, halite, and graphite.
What are some examples of minerals?
200
Igneous, sedimentary, and metamorphic are examples of these.
What are the three types of rocks?
200
People use rocks to make statues, bricks, and buildings.
What are ways that people use rocks?
200
This is caused by wind, water, and ice.
What are the three types of weathering?
200
Weathering and erosion happen over hundreds and thousands of years.
How quickly do weathering and erosion happen?
300
Gold is used to make jewelry, graphite is used to make lead, and halite is used in salt.
What are the uses of gold, graphite, and halite?
300
These are formed from material that has settled into layers.
How are sedimentary rocks formed?
300
Rocks are formed in various ways.
How are the kids of rocks different?
300
This is the movement of weathered rock.
What is erosion?
300
Diamond scratches quartz.
How can you tell that diamond is harder than quartz?
400
You can identify them by their color, hardness, and streak.
How can minerals be identified?
400
These rocks have been changed by temperature and pressure.
What are metamorphic rocks?
400
This is the process of rocks changing from one kind of rock to another kind of rock.
What is the rock cycle?
400
This is how sand dunes form.
What happens when wind blows sand?
400
You find igneous rock in on the ground.
How can you tell that you must be near a volcano?
500
You need more than one way because some minerals are the same color, and some have the same hardness and streak.
Why do you need to use more than one way to identify a mineral?
500
These rocks were once melted, and then cooled and hardened.
What are igneous rocks?
500
Sedimentary rock covers 3/4 of the Earth's surface.
What is the most common kind of rock found on Earth?
500
This is how a valley is formed.
What happens when a glacier move across the land?
500
If sedimentary rock undergoes enough pressure and heat, it changes to metamorphic rock.
How can sedimentary rock become metamorphic rock?