NGSS.MS-ESS1-2

Elliptical, spiral, and irregular are all types of ______.

• solar systems
• universes
• galaxies
• stars

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NGSS.MS-ESS1-2

What is a GALAXY?

• The speed of the internet
• A group of billions of stars
• A large object in space that orbits a planet
• How the heat of the sun is measured

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NGSS.MS-ESS1-2

How are galaxies held together.

• gas
• dust
• stars
• gravitational attraction

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NGSS.MS-ESS1-2

Why does the Earth orbit the Sun and not a planet in the solar system?

• The Sun is more massive than the planets so it's mass causes the gravitational pull.
• It just happened that way.
• The Earth pulls the Sun toward it  because it is so massive.
• The Earth is closer than the other planets so the distance causes the gravitational pull.

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NGSS.MS-ESS1-2

The gravitational pull of the Sun affects which of the following properties of the planets in our solar system?

• Chemical composition
• Speed and shape of orbit
• Formation of land features
• Number of moons

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NGSS.MS-ESS1-2

What force pulls the moon towards Earth?

• gravity
• inertia
• weight
• mass

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NGSS.MS-ESS1-2

To be able to accurately predict when a comet will collide with a planet, it is essential to understand --

• the composition of a planet's atmosphere
• the gravitational attraction that exists between all bodies
• the attraction of opposite poles of a magnet to each other
• the formation of comets

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NGSS.MS-ESS1-2

In this diagram, the motion of the SATELLITE can best be described as -

• Rotation
• Revolution

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NGSS.MS-ESS1-2

What is the Milky Way?

• a candy bar

• a star

• a solar system

• a galaxy

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NGSS.MS-ESS1-2

What keeps the planets in orbit around the sun?

• gravity

• friction

• density

• distance

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NGSS.MS-ESS1-2