The Earth & Its Moon Posttest

an imaginary line around which a body, such as Earth or the moon rotates

• axis

• rotation

• orbit

when Earth casts a shadow on the moon or when the moon casts a shadow on the sun

• eclipse

• phase

• axis

the rising and falling of ocean water

• tide

• eclipse

• drought

the visible change we see in the moon's brightness and shape

• phase

• full moon

• eclipse

the first partially reusable spacecraft

• Sputnik

• Space Station

• Space Shuttle

Earth makes one full ________ every day.

• rotation

• revolution

• orbit

Earth makes one full ________ around the sun every year.

• rotation

• revolution

• orbit

The ________ reflect(s) light from the sun, so the moon's brightness and shape appear to change depending on its position.

• moon

• earth

• stars

A/An ________ happens when the length of the day is equal to the length of the night, 12 hours, everywhere on Earth except at the poles (North & South).

• equinox

• solstice

• time change

The moon's ________ pulls on different parts of the Earth creating tides.

• gravity

• shape

• rotation