HMH Unit 5 Vocabulary

An imaginary line around which Earth rotates.

• constellation

• axis

• hemisphere

• revolution

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

A pattern of stars that forms an imaginary picture or design in the sky.

• orbit

• sunset

• telescope

• constellation

A force that pull things toward the center of Earth.

• gravity

• hemisphere

• systems

• revolution

Tags

NGSS.MS-PS2-5

One half of Earth.

• constellation

• hemisphere

• horizon

• astronomer

The path of one object in space around another object.

• orbit

• solar system

• sunset

• revolution

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The movement of Earth one time around the sun.

• constellation

• gravity

• revolution

• systems

Tags

NGSS.MS-ESS1-1

The turning of Earth on its axis.

• astronomer

• axis

• systems

• rotation

Tags

NGSS.MS-ESS2-6

Groups of things working together in order to function.

• gravity

• systems

• sunrise

• telescope

Tags

NGSS.MS-ETS1-1

NGSS.MS-LS1-3

The point between night (darkness) and day (daylight). The time at which day first happens.

• sunrise

• sunset

• rotation

• rotation

Tags

NGSS.MS-ESS1-1

The time in the evening when the sun goes down.

• sunrise

• revolution

• orbit

• sunset