The Solar System, Earth & Universe

Which of the following best estimates the number of galaxies in the universe?

• billions

• hundreds

• thousands

• millions

How does the distance between he planet and the Sun compare with the distances between the planet

Earth and other stars?

• The Sun is many thousands of times closer to

  Earth than any other star.

• The Sun and all the other stars are the same distance from Earth.

• The other stars are many thousands of times closer to Earth than the Sun.

• About half of the other stars are closer to Earth than the Sun.

Which is true about the Sun?

• The Sun is one of many starts in the Solar System.

• The Sun is the only star in the Universe.

• The Sun is the only star in the Milky Way Galaxy.

• The Sun is one of many stars in the Milky Way Galaxy.

In past centuries, many people believed in a static Universe- one that had existed forever without changing much, and on that would continue forever more or less as it is today.

• Stars are constantly forming and dying

• Most galaxies appear to be moving away from each other.

• Stars are held together by gravity within galaxies.

• Light moves at a constant speed through empty space.

Tags

NGSS.HS-ESS1-2

Which of the following is the smallest?

• the Milky Way Galaxy

• the Universe

• the Solar System

• the Sun

Tags

NGSS.MS-ESS1-3

Satellites in orbit around the Earth

• must return to Earth to deliver the data that they collect.

• may contain telescopes and other instruments to study space.

• produce data of poor quality because of Earth's atmosphere

• all of the above

Space probes can

• travel farther than Earth-orbiting satellites.

• carry specialized instruments for specific space missions.

• study parts of the solar system too dangerous for humans.

• all of the above

Tags

NGSS.MS-ESS1-3

Which list puts the following things in correct order from smallest to largest?

• Earth- solar system- galaxy- universe

• solar system- galaxy- universe- Earth

• solar system- Earth- universe- galaxy

Which of the following best estimates the number of stars in a galaxy?

• hundreds

• millions

• billions

• thousands

The Universe is composed of

• everything in existence.

• everything in the Milky Way galaxy.

• the Milky Way and our solar system.

• everything in our solar system.