Exploring the Solar System

Gravity depends on ________ and ________.

• mass, distance

• gravity, progression

• distance, time

• temperature, orbit

Tags

NGSS.MS-PS2-4

An object falls toward Earth because Earth and the object are attracted to each other by _______

• gravity

• distance

• AU

• temperature

Tags

NGSS.MS-PS2-4

Why does the moon not come crashing into Earth?

• inertia

• gravity

• both

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Billions of years ago our _________ was a spinning nebula of dust and gas.

• solar system

• sun

• moon

• earth

Scientist think the sun formed by

• particles became attracted to each other

• these particles collected into larger bodies

• gravity caused the particles to further condense, heat up, and rotate faster

• all the above

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The _________ _______ of the sun caused a disc-like shape to form

• centrifugal force

• gravity pull

• earth's force

• model's force

Tags

NGSS.MS-ESS1-2

___________ attracted remaining gases and dust particles together to form planets, moons, and smaller objects that continue to orbit the sun.

• gravity

• friction

• force

• inertia

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

This model was first proposed by ancient Greek astronomers who placed Earth at the center of our Solar System.

• geocentric model

• heliocentric model

• progression model

• Earth's model

This model placed the sun at the center of the solar system with all the planets orbiting it.

• heliocentric

• geocentric

• Earth's model

• progression model

________ ________ is a vital part of the chemical processes that living things depend on for survival.

• liquid water

• earth water

• our world

• earth's mass

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-6