Solar System

How many planets are there in our Solar System?

• 7

• 8

• 9

• 10

A solar system consists of a sun and the objects that orbit it.

• True

• False

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

A huge collection of gas, dust, and billions of stars, and their solar systems that are all held together by gravity is a...

• moon

• galaxy

• planet

• star

Tags

NGSS.MS-ESS1-2

________ is an attractive force between two masses by which a planet or other body draws objects toward its center.

• speed

• gravity

• distance

• length

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Check all the statements that are true about the moon.

• It gives off its own light

• It helps stabilize the the Earth's wobble on its axis

• It helps Earth have a stable climate

• It causes ocean tides

Tags

NGSS.MS-ESS1-1

A regular repeating path that one object in space takes around another is called its....

• planet

• orbit

• moon

• gravity

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

A _________orbits a star, is big enough to have enough gravity to force a spherical shape, and is big enough that its gravity has cleared away any objects of a similar size near its orbit.

Tags

NGSS.MS-ESS1-2

Words with "astro-" have a meaning related to the stars, celestial objects or outer space. Which words have the meaning of a person who studies the stars or space?

• astronomer

• astrology

• astrologist

• astronomical

Words with "astro-" have a meaning related to the stars, celestial objects or outer space. Which word means the study of stars and space?

• astronaut

• astrologist

• astrological

• astrology