Earth
Earth spins around its axis. This spinning has this name:
Rotation
The Moon travels around Earth. It is Earth's natural__________.
Satellite
The Sun is at the center of:
The Solar System
Stars are made of ___________.
Plasma
The Sun, Earth, and Moon line up and one blocks the light. What is it?
Eclipse
Earth takes about this long to complete one rotation.
24 hours
The Moon does not make its own light. It ________ sunlight.
Reflects
The layer in the center of the Sun where fusion happens.
A group of stars that makes a pattern or picture in the sky.
Constellation
The Moon blocks sunlight from reaching Earth. What type of eclipse is it?
Solar eclipse
Earth's rotation causes these two:
Day and night
The changing shapes of the lit part of the Moon we see.
Moon phases
The layer of the Sun we can see. It looks like its surface.
Photosphere
Stars with this color are the hottest.
Blue
Earth's shadow covers the Moon. What type of eclipse is it?
Lunar Eclipse
Earth travels once around the Sun. This trip takes about:
365 days
A full cycle of Moon phases takes about this many days.
29.5 days
Planets _________ around the Sun.
Orbit
Stars with this color are the coolest.
Red
The order of the objects in a lunar eclipse.
Sun - Earth - Moon
Earth's axis is tilted about this many degrees.
23.5
The lit part of the Moon grows from new moon to full moon. The Moon is:
Waxing
The Sun is an average-sized star with this name.
Yellow Dwarf
Sirius is bigger and brighter than the Sun, but it looks fainter. It is because of ___________.
The distance
The Moon can look red during a lunar eclipse. This is its nickname:
Blood Moon