This causes the Earth's seasons.
What is the revolution and tilt of the Earth?
The object in the center of our solar system around which all planets orbit.
What is the "sun"?
It takes this long for the moon to revolve completely around the Earth.
What is 29 days or about a month?
This keeps the Earth and moon in their orbits.
What is "gravity"?
This word describes the Earth spinning continuously.
What is "rotating"?
The shape of the Earth
What is a "sphere"?
The sun is a big fiery ball of gas called this.
What is a "star"?
Solar refers to the sun. This term refers to the moon.
What is "lunar"?
It takes this long for the Earth to complete on full rotation.
What is 24 hours?
This imaginary line goes from the North Pole to the South Pole of the Earth.
What is the "axis"?
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
The sun rises in this direction.
What is the "east"?
The moon shines its own light. True or false.
What is a "false"?
This object is used to study far away objects in the sky.
What is a "telescope"?
This is the term used to describe the earth orbiting the sun.
What is "revolution or revolve"?
When it is winter in North America, it is this in Australia.
What is "summer"?
The sun appears higher in the sky during this time of year because of the tilt of the earth.
What is a summer?
The name for the moon changing shape throughout its cycle.
What is a "phases of the moon"?
This causes day and night.
What is earth's "rotation"?
What is a "shadow"?
The season when the northern hemisphere is tilted away from the sun.
What is earth's "winter"?
The time of day when shadows are smallest and the sun is directly overhead.
What is "noon"?
The moon affects this part of the Earth, changing it daily on our beaches.
What is the "ocean tides"?
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"?
A long time ago, this was used to tell time.
What is a "sun dial"?