Exit Check 8.1 - Our Solar System

8.1.1

A planetary nebula is a

• collection of comets orbiting a star.

• large cloud of gas and dust around a star.

• collection of dwarf planets orbiting a star.

• A large number of stars orbiting a planet.

Answer explanation

This question links to success criteria 8.1.1: I can describe how the sun and planets formed due to accretion and gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

8.1.1

How did the bits of dust and gas that eventually formed the solar system behave while falling into orbit around each other?

• They collided and went spiraling in opposite directions.

• They expanded as they were pulled farther apart and eventually cooled.

• They created new gases that caused them to cool after interacting with each other.

• They ran into each other and stuck together due to gravitational and other forces.

Answer explanation

This question links to success criteria 8.1.1: I can describe how the sun and planets formed due to accretion and gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-1

NGSS.HS-PS2-4

8.1.1

Our solar system contains how many stars

• Hundreds, thousands, or maybe even millions.

• Eight.

• None

• One

Answer explanation

This question links to success criteria 8.1.1: I can describe how the sun and planets formed due to accretion and gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

8.1.1

How did the sun form?

• A cloud of gas an dust floated in space

• gravity pulled it closer together

• The collisions between the hydrogen and helium atoms started producing enormous amounts of heat

• A tiny bit of matter got turned into a lot of energy

• A Star was born.

Answer explanation

This question links to success criteria 8.1.1: I can describe how the sun and planets formed due to accretion and gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Why do scientists believe the inner solar system has terrestrial planets?

• Metal compounds were more plentiful closer to the star's gravity

• Gravitational forces attracted ice toward the center of the nebula.

• Lighter planets form toward the center of a solar system similar to how a planet’s core forms.

• The sun’s gravitational force attracts planets with less mass toward the solar system’s center.

Answer explanation

This question links to success criteria: I can describe how the sun and planets formed due to accretion and gravity.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.HS-PS2-4

8.1.2

Select all that apply

Which are true about the terrestrial planets?

• They formed by the merging of planetesimals in the inner part of the main disk.

• They are composed of elements that did not vaporize.

• They formed by the merging of icy planetesimals near the outer part of the main disk.

• They are rocky and dense.

Answer explanation

This question links to success criteria 8.1.2: I can explain why and how Earth and the other

inner planets differ from the outer planets.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

8.1.2

The group of inner planets are known as:

• The Terrestrial Planets

• The Gas Giants

• The Outer Planets

• The Hallow Planets

Answer explanation

This question links to success criteria 8.1.2: I can explain why and how Earth and the other

inner planets differ from the outer planets.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

8.1.2

What caused the lighter elements to leave the terrestrial planets?

• Gravity from the Gas Giants

• Nothing, the lighter elements stayed

• Gravity from the Sun

• Stellar wind from the Sun

Answer explanation

This question links to success criteria 8.1.2: I can explain why and how Earth and the other

inner planets differ from the outer planets.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

8.1.2

The group of outer planets are known as:

• The Terrestrial Planets

• The Gas Giants

• The Inner Planets

• The Rocky Planets

Answer explanation

This question links to success criteria 8.1.2: I can explain why and how Earth and the other

inner planets differ from the outer planets.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

8.1.2

Where in our solar system would you expect to find a planet that is mostly made of gas?

• very close to the sun

• outside of the sun's gravitational pull

• very far from the sun

• very close to other planets

Answer explanation

This question links to success criteria 8.1.2: I can explain why and how Earth and the other

inner planets differ from the outer planets.

If you got it correct place a check mark in the question results section. If you got it incorrect place an X in that section. If this was a redemption question, cross out the one X and replace it with a check mark.

Tags

NGSS.MS-ESS1-2