Science Vocabulary Science Vocabulary

By: Mariam Khamaj

OrbitThe path an object in space takes while revolving around another object.

For example, it takes 1 year for theEarth to orbit around the sun

Eclipse (lunar and solar)

Lunar eclipse: When the moon passes directly behind the Earth’s shadow.

Total lunar eclipse

Solar eclipse: When the Earth passes directly behind the moon’s shadow.

Total solar eclipse

Waning and WaxingWaning: To grow smaller in appearance.

Waning Gibbous

Waxing: To grow larger in appearance.

Waxing Gibbous

StarSphere of glowing gasses that give out heat and light.

A star

The sun is thelargest star

GalaxyStars, dusts, and gasses held together by gravity.

The galaxy MEW MEW

CometA rocky chunk of ice and frozen gasses.

A comet

Halley’s Comet