Tides
Planet Formation
Earth's Layers
Waves
Electromagnets and Magnetism
100

The cause of tides on Earth.

What is the moon's gravity?

100

The theory that states the universe began as a hot, dense singularity.

What is the Big Bang Theory?

100
The name of the outermost layer of the Earth.

What is the crust?

100
Location of the crest. 

What is the top of the wave?

100
This is where a magnet is the strongest.

What are the poles?

200

The positions of the moons during a spring tide.

What is a straight line?

200

During planet formation, smaller objects called these collide and combine to form larger objects.

What are planetesimals?

200

This layer, located beneath the Earth's crust, is made of solid and semi-solid rock and is responsible for tectonic movement.

What is the mantle?

200

Another word for amplitude.

What is height?

200

The materials needed for an electromagnet.

What is a battery, copper wire, and iron nail?

300
The two moon phases of a spring tide. 

What are full moon and new moon?

300

This is the term for the flat, spinning disk of gas, dust, and ice that surrounds a forming star and eventually gives birth to planets.

What is a protoplanetary disc?

300

The materials P-waves can move through, and materials S-waves can move through.

What is solid and liquid, and what is solid only.

300

The measurement from a crest to a crest.

What is a wavelength?

300

This is two examples of magnets that would show repulsion.

What is north and north, and south and south.

400

The explanation for spring tides having a larger tidal range.

What is the sun and moon work together to pull the water levels?

400

The final process that brings planets together.

What is accretion?

400

Layers of the Earth that S-waves can travel through.

What is the crust and mantle?

400

Increasing the frequency of a wave would do this to the wavelength.

What is shorten the wavelength?

400

The part of the electromagnet that is actually magnetic, and how can you make it stronger?

What is the nail, and add more loops or get a bigger battery?

500

The location of the moons in a neap tide and reason it has a lower tidal range. 

What is a 90 degree angle and neap tides have a lower high tide and lower low tide, so it is not as drastic. 
500

If X revolves around Y, and Y revolves around Z, the sun, moon, and Earth can be labelled as such.

What is X is the moon, Y is Earth, and Z is the sun.

500

P waves can be considered stronger than S waves for these 3 reasons. 

P waves arrive first, they are faster, and can move through any material. 

500

This amplitude and frequency would create the highest amount of energy in a wave.

What is high amplitude and high frequency?

500

When an electric current flows through a wire, it creates this type of field around the wire, which is essential for the electromagnet’s function.

What is a magnetic field?

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