Show:
Magnetism
Electricity
Fast changes
Slow changes
Rocks/
Minerals
100
Magnetic force is the strongest here. There is a north and a south.
What are poles?
100
A safety device that switches off dangerous currents. A fuse is one.
What is circuit breaker?
100
A river that overflows its sides may cause this.
What is a flood?
100
Sand dunes are formed by this blowing.
What is wind?
100
Melted rock beneath Earth's surface is called this.
What is magma?
200
A device that changes sound into electrical signals is this. A person needs one to be heard in a crowd.
What is a microphone?
200
Charges do not flow easily through this. It is the plastic coating on wires.
What is insulation?
200
A large amount of rock and soil that rapidly moves DOWNHILL.
What is a landslide?
200
A large, thick sheet of ice that slowly moves across the land.
What is a glacier?
200
Once melted rock reaches Earth's surface, it is called this.
What is lava?
300
A device that changes electrical energy into mechanical energy. (motion)
What is motor?
300
Rubbing wool on a balloon causes a buildup of electrical charges called this. It occurs in lightning storms.
What is static electricity?
300
A mountain built up around an opening in Earth's crust. (They can erupt)
What is a volcano?
300
The carrying away of weathered rock (movement)
What is erosion?
300
Out of these three types of rock you can see the layers; igneous, metamorphic, or sedimentary.
What is sedimentary?
400
Objects with magnetic force are called this.
What are magnets?
400
The voltage of an electric current can be increased or decreased through these on the way to your home.
What are transformers?
400
A break in Earth's crust. (The San Andreas is one.)
What is a fault?
400
Bits of sand, soil, and rock are DEPOSITED by wind or water (Set down)
What is deposition?
400
Heat and pressure cause this type of rock to "morph."
What is metamorphic rock?
500
A compass needle points in this direction.
What is north?
500
Charges flow easily through this material. (copper wire is one)
What are conductors?
500
A cuplike shape formed at the vent of a volcano.
What is crater?
500
Exfoliation and abrasion are forms of this.
What is physical weathering?
500
The hardest mineral showing as a 10 on Mohs hardness scale is this. (Every woman wants one)
What is a diamond?