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Movement
Seasons
Moon Phases
Eclipses
Tides
100
The spinning of a body on its axis is called this.
Rotation
100
These are the four seasons experienced on Earth.
Winter, spring, summer, fall (autumn)
100

During this phase, the moon is not visible at all from Earth.

New Moon

100

Name the two types of eclipses that can be seen from Earth.

Solar and Lunar

100

Name the two types of tides.

Spring and neap

200

The movement of one body in space around another.

Revolution

200
Earth is tilted on its axis by this number of degrees.
23.5
200

During this lunar phase, the moon appears fully lit.

Full Moon

200

During this type of eclipse Earth is between the moon and the sun.

Lunar Eclipse

200

During a full moon or a new moon, this type of tide is happening.

Spring

300

How long does it take the moon to orbit around the Earth?

A month

28-29 Days

300
When the northern and southern hemisphere receive the same amount of sunlight on a particular day, one of these is happening.
Equinox
300
To decrease gradually in size. The apparent illuminated part of the moon is becoming smaller
Waning
300

Which moon phase could result in a solar eclipse?

New moon

300

What causes Earth's tides?

The gravitational pull or force of the moon

400

How long does it take Earth to complete a rotation?

A day

24 hours

400
When the southern hemisphere is tilted toward the sun, the northern hemisphere is experiencing this.
Winter
400

To increase gradually in size. The illuminated part of the moon appears to become larger.

Waxing

400

During this type of eclipse the sun's light is blocked by the moon.

Solar Eclipse

400

When the sun, Earth and moon form a 90 degree angle, this type of tide happens.

Neap

500

Why do we add a "leap day" every four years. A number answer would be appropriate. 

Earth's revolution around the sun actually takes 365 1/4 days. If we did not add the extra day every four years, eventually (a few hundred years) our calendars, including when we observe equinoxes, soltices and seasons, would not match the weather patterns on Earth.

500

What are the two main reasons for the seasons?

1. The Earth's tilt on its axis

2. The Earth's revolution around the sun 

500

Beginning with the new moon, name the eight phases of the moon, in order, as seen from Earth.

New, waxing crescent, 1st quarter, waxing gibbous, full, waning gibbous, 3rd (last) quarter, waning crescent

500

Which is the only moon phase that could result in a lunar eclipse?

Full moon

500

What measurable characteristic (on Earth) defines a spring tide and a neap tide

Spring tides are characterized by a maximum tidal range and neap tides are characterized by a minimum tidal range.