Earth
Sun
Moon
This and That
Vocabulary
100

This causes the Earth's seasons.

What is the revolution and tilt of the Earth?

100

The object in the center of our solar system around which all planets orbit.

What is 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

This word describes the Earth spinning continuously.

What is "rotating"?

200

The shape of the Earth

What is a "sphere"?

200

The sun is a big fiery ball of gas called this.

What is a "star"?

200

Solar refers to the sun. This term refers to the moon.

What is "lunar"?

200

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

What is 24 hours?

200

This imaginary line goes from the North Pole to the South Pole of the Earth.

What is the "axis"?

300

The Earth takes this long to revolve around the sun.

What is 365 1/4 days?

300

The sun rises in this direction.

What is the "east"?

300

The moon shines its own light.  True or false.

What is a "false"?

300

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

What is a "telescope"?

300

This is the term used to describe the earth orbiting the sun.

What is "revolution or revolve"?

400

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

What is "summer"?

400

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

What is a summer?

400

The name for the moon changing shape throughout its cycle.

What is a "phases of the moon"?

400

This causes day and night.

What is earth's "rotation"?

400
When light is blocked by an opaque shape this forms.

What is a "shadow"?

500

The season when the northern hemisphere is tilted away from the sun.

What is earth's "winter"?

500

The time of day when shadows are smallest and the sun is directly overhead.

What is "noon"?

500

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

What is the "ocean tides"?

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

A long time ago, this was used to tell time.

What is a "sun dial"?

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