1
2
3
4
5
100

The lit side of a __________ faces away from Earth. We see no moon at all.

New moon

100

During a _________ moon, just the edge of the lit side can be seen

crescent

100

An imaginary line going from Earth's north pole to the south pole

Axis

100

A _______ moon looks like a half-circle and is lit on the right side

first quarter

100

A ___________ moon looks like a half-circle, but it is lit on the left side

third quarter

200

The part of the Earth that points towards the sun and gets the most sunlight experiences _________

Summer

200

Earth's _____________ causes the cycle of day and night. One full _______________ takes 24 hours or one full day

Rotation

200
Earth is _______ on its axis. 

Tilted

200

Each complete trip of Earth around the sun is one _____________

Revolution

How many days does one revolution take? +300

200

The part of Earth that points away from the sun and gets the least sunlight experiences _____________

Winter

300

As we see more of the moon’s lit side, we say that the moon is ________ 

Waxing

300

How many moon phases are there?

8

300

The __________ change as Earth moves around the sun. 

Seasons

300

How long does a full moon cycle take to occur

1 month

300

As we see less of the moon’s lit side, we say that the moon is ________ 

Waning

400

A tool that makes far away objects seem larger and closer

Telescope

400

Changes in the height of ocean water caused by the moon's gravity are __________

tides

400

Where does the moon get its light from?

Reflects light from the sun

400

A _________ is a ball of hot, glowing gases

Star

Name the closest star to Earth +500

400

Energy that can travel through space

Radiant energy

500


The sun’s radiant energy travels through space to Earth. Which is not an effect of radiant energy on Earth? (A) It heats up Earth’s land. (B) It heats up Earth’s oceans. (C) It lights up the daytime sky. (D) It causes objects to fall to Earth.

D

500

A planet is a large round body that revolves around a star in a clear orbit

Planet

Name the planets in order: +800

500

A __________ is made up of a star and the planets and other bodies that revolve around it.

Solar system

500

The _______ planets revolve around the sun more quickly than the outer planets. The ______ planets are the only planets where probes from Earth have landed

inner

500

It takes the ______ planets a long time to revolve once around the sun. Unlike the inner planets, the ______ planets have rings

outer

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