The sun is a __________, a huge ball of very hot gases.

• solar system

• planet

• universe

• star

The imaginary line that passes through Earth's poles is Earth's ___________.

• axis

• universe

• planet

• solar system

Each shape the moon seems to have throughout the month is called a __________.

• axis

• moon phase

• constellation

• star

Tags

NGSS.MS-ESS1-1

A pattern of stars is a _________.

• universe

• solar system

• moon phase

• constellation

Everything that exists, including planets, stars, dust, and gases, is the ________.

• galaxy

• solar system

• universe

• constellation

The gravitational force of a star holds a ________ in orbit around it.

• axis

• planet

• galaxy

• solar system

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A _________ contains a group of stars, gas, and dust.

• galaxy

• solar system

• universe

• star

A ________ is made up of a star and all the planets and other objects that revolve around it.

• planet

• constellation

• solar system

• galaxy

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Which of these is the basis for timekeeping on Earth?

• hemispheres

• satellites

• time zones

• distance from the sun

Which of these occurs when it is summer in the Northern Hemisphere?

• Earth has its winter equinox.

• The Southern Hemisphere is tilted toward the sun.

• The sun's rays strike the Northern Hemisphere directly.

• Earth's equator experiences three months of darkness.

Tags

NGSS.MS-ESS1-1