Tides
Eclipses
Lunar Phases
Seasons
Misc.
100

The point  at which ocean water reaches its highest level on shore

What is high tide?

100

The lighter part of a shadow where light is partially blocked

What is penumbra?

100

Phases of the moon during which the light on the moons surface is shrinking

What are waning phases?

100

The reason for the seasons

What is the Earth's tilted axis as we orbit the sun?
100

This is the force that holds the universe together.

What is gravity?

200

Tides are the rise and fall of Earth's oceans due to this effect from the sun and moon

what is gravitational force/gravitational pull?

200

A solar eclipse occurs during this lunar phase

What is new moon?

200
moon phase when less than half of the moon's visible surface is illuminated

what is crescent moon?

200

It is summer in the southern hemisphere so the northern hemisphere will experience this season

What is winter?

200

The number of planets AND dwarf planets in our solar system

what is 8 planets and 5 dwarf planets?
300

When the moon is directly over a coastline, this will occur on the side of Earth closest to the moon and the opposite side of Earth.

What is tidal bulge?

300

This is the area that you must be standing in to observe a total solar eclipse?

What is the path of totality/moon's umbra?
300

This is the moon phase that is HALF WAY through the lunar cycle 

What is full moon?

300

The phenomenon when Earth experiences equal daylight and nighttime hours

What is equinox?

300

List the planets by name and in order from the sun that are referred to as the terrestrial planets

what is Mercury, Venus, Earth, Mars?

400

The difference between the highest high tide and lowest low tide in an area

What is tidal range?

400

This is the only thing visible during a total solar eclipse

What is corona?

400

Moon phase in which the LEFT HALF of the moon's visible surface is illuminated

What is third quarter?
400

This season experiences a higher angle of the sun in the sky which leads to longer days and warmer temperatures

What is summer?

400

This is found at the center of a galaxy

What is a black hole?

500

This occurs when the sun, Earth, and moon form a right angle. This causes their gravitational pull to cancel out partially and results in higher low tides and lower high tides

What is neap tide?

500

This is the reason we do not experience a total lunar eclipse every full moon.

What is the moon's orbit is tilted 5 degrees compared to Earth's orbit?
500

List the moon phases in order starting with new moon.

what is new moon, waxing crescent, 1st quarter, waxing gibbous, full moon, waning gibbous, 3rd quarter, waning crescent?

500

The point in orbit when a planet is closest to the sun (the northern hemisphere experiences winter when this occurs)

what is perihelion?

500

This type of galaxy has a central disk with arms extending from the disk and has active formation of new stars.

What is an elliptical galaxy?