Vocabulary
Cycles
Objects in the Sky
100

The Earth's path around the sun is its____

orbit

100

How fast a planet rotates determines the length of its ________.

day

100

When we can see the entire lit side of the moon from the Earth, what phase are we seeing?

Full moon

200

Earth's spinning around is called ________

rotation

200

The moon revolves around the Earth. How long does this take?

1 month or 29.5 days

200

When the moon is between the sun and the Earth and casts a shadow on Earth, it is called a ____________

solar eclipse

300

One half of the Earth is a ___________

hemisphere

300

The tides on the Earth change as the 4 times a day because ____________

the Earth rotates

300

When the Earth is between the sun and the moon and casts a shadow on the moon, it is called a ___________

lunar eclipse

400

When an object seems to move, it has ____________

apparent motion

400

One year is the time that it takes the Earth to do what?

revolve around the sun

400

If is is December, what season is it in the Southern hemisphere?

summer

500

When light is blocked from shining on ab object in space, an __________ occurs.

eclipse

500

The Earth's tilt on its axis and it revolution around the sun causes the change of what on Earth?

seasons

500

The moon's gravity pulls on the Earth and causes ________.

tides

M
e
n
u