Earth & Space Vocabulary

A ______ is one in which each part of the model is made consistently smaller or larger by the same percentage or ratio as the object it represents.

• galaxies

• solar system

• scale model

• shadows

_____ is the way something appears to move

• orbit

• apparent motion

• rotation

• revolution

_________________ is one half of Earth’s surface, usually above or below the equator.

• season

• orbit

• axis

• hemisphere

_____________ is a force that pulls all objects toward each other, including particles of gas.

• revolution

• gravity

• shadows

• seasons

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Our _________ is a star of average size and it is the only one of the many stars that we can see from Earth.

• moon

• Earth

• sun

• scale

15. A ____________ is a group of parts that work together.

• moon

• axis

• system

• phase

A _________ is a huge sphere of very hot gases that gives off light and is held together by gravity

• moon

• planet

• astroid

• star

An ___________ is an imaginary line through the center of a body or space body.

• orbit

• revolution

• axis

• rotation

A _____________ is a system of millions or billions of stars, gas, and dust held together in a cluster by gravity.

• galaxy

• planet

• axis

• moon

Tags

NGSS.MS-ESS1-2

The path one object travels as it revolves around another object is called ____________________.

• revolution

• orbit

• phase

• rotation

Tags

NGSS.MS-ESS1-2