Earth
Seasons
Moon
This and That
Tides/Eclipses
100

This causes the Earth's seasons.

What is the tilt of the Earth?

100

This is the  the most important cause of Earth's seasons?

Earth's tilt on it's axis combined with it's revolution around the Sun.

100

It takes this long for the moon to revolve completely around the Earth.

What is 29 days or about a month?

100

This keeps the Earth and moon in their orbits.

What is "gravity"?

100

 The Sun Moon and Earth line up during this type on tide. It could be new moon phase or full moon. It causes a higher than usual high tide.

What is during spring tide?

200

the closed and nearly circular path created by Earth's revolution around the Sun.

What is an orbit?

200

a day when fall or spring begins

What is an equinox?

200

The Moon's revolution around the Earth

What is the cause of the Moon's changing phases?

200

It takes this long for the Earth to complete on full rotation.

What is 24 hours?

200

This eclipses happens when the moon is between the earth and the sun

What is the solar?

300
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
300

he day when summer or winter begins

What is a solstice?

300

During this phase of the moon, we can see no light from the moon.

What is a "new moon"?

300

This object is used to study far away objects in the sky.

What is a "telescope"?

300

The Sun, moon and Earth form a right angle during this type of tide. It causes higher than usual low tides.

How are Sun, Moon and Earth positioned during a neap tide?

400

When it is winter in North America, it is this in Australia.

What is "summer"?

400

During these two days of the year there is and EQUAL amount of daylight and darkeness.

What is a fall and spring equinox?

400

This is the phases split the new moon

What is crescent or crescent sisters 

400

The sun appears higher in the sky during this time of year because of the tilt of the earth.

What is "summer"?

400

This type of eclipses occurs when the Earth is between the sun and the moon

What is lunar?

500

The imaginary line horizontally around the middle of the Earth.

What is the "equator"?

500

This is how the sun's rays strike the Earth in the summer.

What is "directly"?

500

The moon affects this part of the Earth, changing it daily on our beaches.

What is the "ocean tide"?

500

We have this special day every 4 years in February because it takes the Earth 365 and 1/4 days to revolve around the sun.

What is "Leap Year Day"?

500

Most locations on Earth have two low tides and two high tides each day due to this movement that Earth makes.

What is a rotation?

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