Show:
Earth
Sun
Moon
This and That
Vocabulary
100
This causes the Earth's seasons.
What is the tilt of the Earth?
100
The two days of the year when neither hemisphere is tilted toward the sun
What is a "equinox"?
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 day in March when the sun is directly overhead at the equator is called this.
What is a "vernal equinox"?
200
The measurement for the pull of gravity on the surface of the moon compared to Earth.
What is 1/6?
200
It takes this long for the Earth to complete on full rotation.
What is 24 hours?
200
This combined with distance affects the force of gravity.
What is "mass"?
300
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
300
This occurs during a full moon when the Earth is between the moon and the sun.
What is a "lunar eclipse"?
300
During this phase of the moon, we can see no light from the moon.
What is a "new moon"?
300
The tendency of an object to resist a change in motion.
What is inertia?
300
This term is used to describe the phase of the moon when we see all of the lit side.
What is "full moon"?
400
When it is winter in North America, it is this in Australia.
What is "summer"?
400
This occurs when the moon moves between the sun and the Earth, blocking some the the sun's light.
What is a "solar eclipse"?
400
This is the darkest part of the moon's shadow.
What is the "umbra"?
400
The sun appears higher in the sky during this time of year because of the tilt of the earth.
What is "summer"?
400
As we see less and less of the lit part of the moon, we say that it is doing this.
What is "waning"?
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
Regions on the moon that were formed from huge lava flows.
What are maria?
500
The number of days in a leap year.
What is 366?
500
This is the reason the moon gets very hot in direct sunlight.
What is , the moon has no atmosphere?