Seasons
Moon Phases
Eclipses
Tides
Grab Bag
100
What causes seasons?
Earth's tilt on its axis as it revolves around the sun
100
Why do we see the moon?
The moon reflects light from the sun.
100
Why isn't there an eclipse every month?
The moon's orbit around Earth is tilted, so the moon doesn't always fall into Earth's shadow (and vice-versa).
100
If there is a low tide at 4:00 p.m., when will the next low tide be?
Approximately 4:00 a.m.
100
Why do we always see the same side of the moon?
It takes the moon the same amount of time to rotate once on its axis as it takes it to revolve once around Earth.
200
If it is summer in the northern hemisphere, what season is it in the southern hemisphere?
Winter
200
What causes us to see different phases of the moon?
The moon's position relative to the sun as it orbits the Earth
200
What must happen for you to see a partial eclipse?
You must be in the penumbra
200
What is a neap tide?
A neap tide is the lowest high tide followed by the highest low tide (smallest difference between tides).
200
Why does the moon affect tides more than the sun?
The moon is closer than the sun.
300
Why is it warmer in summer than in winter?
Earth is tilted toward the sun, so it receives more direct sunlight.
300
If there is a full moon on January 2, approximately when will the next full moon occur?
January 31
300
What must happen for you to see a total eclipse?
You must be in the umbra.
300
Draw a picture showing Earth, the moon, and where high and low tides occur.
300
What season is it in the northern hemisphere when the Earth is at point B?
Fall
400
What season is it in the northern hemisphere when the Earth is at point A?
Summer
400
What moon phase occurs at position 1?
1st Quarter
400
What type of eclipse would you see if the moon is at position 7?
solar eclipse
400
What type of tide would occur on June 7?
spring tide
400
What season is it in the northern hemisphere when the Earth is at point C?
Winter
500
What season is it in the northern hemisphere when the Earth is at point D?
Spring
500
What moon phase occurs at position 5?
3rd (Last) Quarter
500
What type of eclipse would you see if the moon is at position 3?
lunar eclipse
500
What type of tide, moon phase, and eclipse (if there is one) could occur on June 30?
neap tide, quarter moon, no eclipse
500
What type of tide, moon phase, and eclipse (if there is one) could occur on June 23?
spring tide, new or full moon, solar or lunar eclipse