Unit 3 Astronomy Review 1

What causes the moon to move in an orbit around the Earth?

• The Sun's Gravitational Pull

• The Earth's Gravitational Pull

• Venus's Gravitational Pull

• None of these

The changing relative positions of the Moon, Earth and Sun cause

• Phases of the moon

• All of these

• Eclipses

• Tides

the different forms the Moon takes in its appearance from Earth; sequence of phases is the lunar cycle lasting 29.5 days

• Phases

• Tides

• Moon Orbits

• Moon Rotations

More of the moon’s near side is lit each night

• Waxing

• Waning

• New

• Full

Less of the illuminated half of Moon is visible

• Waxing

• Waning

• New

• Full

when the moon is between Earth and Sun and can’t be seen

• New Moon

• Full Moon

• Last Quarter

• Waxing Cresent

when Moon’s shadow appears on Earth’s surface

• Solar Eclipse

• Lunar Eclipise

• New Eclipse

• Full Eclipse

occurs when the Moon moves into Earth’s shadow

• Solar Eclipse

• Lunar Eclipise

• New Eclipse

• Full Eclipse

dark, flat areas formed from lava 3-4 billion years ago

• Maria

• Crater

• Highlands

• Riles

oldest, most highly-cratered regions on the Moon

• Maria

• Crater

• Highlands

• Riles