Planets
Gravity
Tides
Seasons
100

How many planets are there?

8

100

What states that every object in the universe attracts every other object, depending on their masses and distances from one another?

The Law of Universal Gravitation 

100

What is the periodic rising and falling of the surface level of ocean water?

Tide

100

What causes the seasons?

The tilt of the Earth's axis

200

What does Solar mean?

Pertaining to the Sun

200

What is the force that attracts a body toward the center of the earth, or toward any other physical body having mass

Gravity

200

What is the point in the tidal cycle where the sea level is at its highest?

High Tide
200

What season is it in the Northern Hemisphere when the Earth tilts towards the Sun?

Summer

300

Where is our Solar System located?

In the Milky Way Galaxy

300

What does the moon orbit?

The Earth

300

What is the point in the tidal cycle where the sea level is at its lowest?

Low Tide

300

What season is it in the Northern Hemisphere when the Earth tilts away from the Sun?

Winter

400

Name the planets in order from the Sun

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

400

What is the tilt of the Earth's axis?

23.5 Degrees

400

A condition of the least difference between low and high tides

Neap Tide
400

What are the two days of the year in which the sun's most direct rays reach farthest north or farthest south?

Solstice

500

What are the 3 things a planet must do to be a planet?

It must orbit a star, be big enough to have enough gravity to force a spherical shape, and be big enough that it can clear away any objects of a similar size in its orbit.

500

What influences the seasons, moon phases, tides and eclipses?

Earth, Sun and Moon

500

A condition of the greatest difference between low and high tides

Spring Tide

500

What are the two days of the year when day and night are almost the same length everywhere on Earth?

Equinox