Earth Moon System

The Earth's _?_ is an imaginary line that goes from the North Pole to the South Pole.

• equator
• axis
• prime meridian
• equinox

The Earth's tilt is _?_degrees.

• 0
• 90
• 23.5
• 41

If the Earth rotated slower, how would that affect the length of the day?

• longer day
• shorter day
• same time,  24 hours

What are the reasons for the seasons?

• Earth's tilt and rotation.
• Earth's rotation and revolution.
• Earth's tilt and revolution.
• Earth's tilt and resolution

What causes the phases of the Moon to change over the course of a month?

• The moon's orbit (revolution)
• The moon's spin (rotation)
• The earth's orbit (revolution)
• The earth's spin (rotation)

Name this phase of the moon.

• waning crescent
• waxing crescent
• waning gibbous
• waxing gibbous

Which of the following causes the ocean’s tides?

• The Earth's spinning makes the oceans slosh like a bathtub.

• The Earth's gravity pulling on the moon.

• The Sun and Moons gravity pulling on the Earth. (The Moon has the greatest force because it is closer to the Earth)

• The Sun's gravity pulling on the moon.

During a solar eclipse...

• The sun is blocked by the moon
• The Earth is blocked moon
• The moon is blocked by the sun
• You are blocked

Which type of eclipse is shown in the diagram?

• Solar Eclipse
• Lunar Eclipse
• Total Eclipse
• Partial Eclipse

Define Full Moon

• None of moon is visible at night if the sky is clear

• Half moon phase is visible at night if the sky is clear

• Complete moon face is visible at night if the sky is clear

• Less Than half of moon is visible at night if the sky is clear