Learning About The Universe

What is the basic shape of every planet's orbit?

• circle

• ellipse

• square

• triangle

Which explains why scientists no longer consider Pluto to be a planet?

• Scientists discovered it does not orbit the Sun

• Scientists found that Pluto did not have any gravity

• Scientists changed the definition of a planet based on new information

• Scientists decided there should only be 8 planets in the solar system

Which statement explains why the objects of the solar system revolve around the sun?

• The Sun holds 99% of the mass in the solar system, so it has an enormous gravitational pull.

• The Sun generates its own energy, so the planets stay close to absorb its heat and light.

• Light waves from the Sun cause the planets to revolve around it.

• Heat energy from the Sun attracts the planets and keeps them in orbit.

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A student draws a scientifically accurate model of the solar system. Which is NOT a piece of information that the student needs to make their model?

• the size of Mars

• the shape of the Milky Way galaxy

• the distance between the Sun and each planet

• the shape of Earth's orbit

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NGSS.MS-ESS1-3

The solar system formed 4.6 billion years ago when a disk of dust and gas was pulled together by ________

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NGSS.MS-ESS1-2

Spiral, elliptical, and irregular are three types of _________ in the universe

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NGSS.MS-ESS1-2

Which describes a characteristic that is shared by different galaxies in the universe?

• They all are about the same distance from the Milky Way.

• They all have similar planets and stars.

• They all formed because of gravity.

• They all have the same shape.

Tags

NGSS.MS-ESS1-2

Which correctly describes the gravity between objects in the solar system?

• Objects far from the Sun are not large enough to pull on any other objects in the solar system.

• Objects in orbit are in motion, and are not affected by gravity.

• Objects far apart pull on each other more strongly than objects close together.

• Objects with a large mass pull with more force than objects with a small mass.

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The planets and other objects in the solar system stay moving in their _________ because of the pull of gravity on them.

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which statement about the Milky Way is correct?

• The Milky Way is unique in that it contains planets and other celestial bodies.

• The Milky Way does not belong to a cluster of galaxies.

• The Milky Way is one of hundreds of billions of galaxies.

• The Milky Way is so big that it is not affected by gravity.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4