Solar Eclipses
Moon Phases
Earth-Moon-Sun System
Constellations & Star Patterns
Zodiac Constellations
100

When the Moon moves between the Earth and the Sun, blocking sunlight

Solar eclipse

100

The phase when the Moon is not visible from Earth

New Moon

100

The object that Earth orbits

The Sun

100

Groups of stars that form patterns in the sky

Constellations

100

The zodiac is a group of constellations along this path

The Sun’s path (ecliptic)

200

The darkest part of the Moon’s shadow during an eclipse

Umbra

200

The phase when the entire face of the Moon is lit

Full Moon

200

The object that orbits Earth

The Moon

200

A well-known constellation shaped like a hunter

Orion

200

How many zodiac constellations there are

12

300

A solar eclipse that does NOT completely cover the Sun

Partial solar eclipse

300

The phase after a full moon when it begins to shrink

Waning

300

What causes day and night

Earth’s rotation

300

The Big Dipper is part of this larger constellation

Ursa Major

300

A zodiac constellation represented by a lion

Leo

400

Why we cannot look directly at a solar eclipse without protection

It can damage your eyes

400

The phase when half the Moon is visible and growing

First Quarter

400

What causes the Moon’s phases

The position of the Moon relative to Earth and Sun

400

Why constellations appear to move in the sky

Earth rotates

400

A zodiac constellation represented by a scorpion

Scorpio

500

The rare type of solar eclipse where the Sun looks like a ring

Annular eclipse

500

The term for when the Moon is increasing in illumination

Waxing

500

What causes a lunar eclipse

Earth blocks sunlight from reaching the Moon

500

Why different constellations are visible in different seasons

Earth revolves around the Sun

500

Why zodiac constellations are important in astronomy

They mark the path the Sun appears to travel through the sky

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