Earth Moon Sun System

In the northern hemisphere, what day is the summer solstice?

• June 21st
• Sept. 21st
• Dec. 21st
• Mar. 21st

In the southern hemisphere, when is the winter solstice?

• June 21st
• March 21st
• Sept. 21st
• Dec. 21st

When is the vernal/spring equinox in the northern hemisphere?

• June 21st
• March 21st
• Dec. 21st
• Sept. 21st

The tides are strongest when the sun, earth, and the moon are in line. These tides are called what?

• spring tides
• neap tides
• tidel waves
• high tides

What is the main force in causing the tides?

• The sun's gravitational pull
• The moon's gravitational pull
• The earth's gravitational pull

What is the angle of the tilt of the earth?

• 23.5
• 25.3
• 28.5
• 23.8

What tide is it when the sun and moon are at a 90º angle?

• neap tide
• neat tide
• spring tide
• sprig tide

Why is warmer in the summer?

• the sun's rays hit more directly
• we are closer to the sun
• the atmosphere is thinner
• it's not, I'm never hot

How long does it take for the earth to orbit the sun?

• 365 1/4 days
• 24 hours
• 29 days
• 7 1/2 minutes

Spinning of Earth on its axis.

• Rotation
• Revolution