CRM 1.3 Comprehensive Science 3

Which description below best explains what the Universe is?

• The Universe is a black hole made of dark matter.

• The Universe is a giant cloud of dust and gas in space.

• The Universe contains the Milky Way galaxy which contains most of the stars in space.

• The Universe contains many billions of galaxies and each galaxy contains many billions of stars.

What objects below are NOT part a solar system?

• Moons

• Galaxy.

• Planets.

• Sun.

• Asteroid Belt.

Tags

NGSS.MS-ESS1-3

Gustavo is doing a presentation in class comparing the objects of space by their relative sizes. If “Z” represents a planet, what would “Y” most likely represent?

• A galaxy because it contains billions of stars and the planets.

• A nebula because that is what the planets formed from.

• A universe because it contains billions of stars and the planets.

• A solar system because it contains planets and stars.

Tags

NGSS.MS-ESS1-3

The following table displays the average distance from Earth for four objects.

Object Average Distance from Earth:

Barnard's Star 6 ly

Andromeda's galaxy 2.4 million ly

Triagnulum galaxy 2.6 million ly

Planet Neptune 29.09 AU

Which object is closest to Earth?

• Barnard’s Star

• Planet Neptune

• Triangulum galaxy

• Andromeda galaxy

Tags

NGSS.MS-ESS1-3

Which planet was downgraded to dwarf status because it did not meet the requirements of being a planet?

• Mercury

• Pluto

• Venus

• Mars

Ashley missed a day of school while the teacher discussed hierarchical relationships. How would you describe the order from smallest to largest?

• Universe, planet, solar system, galaxy, comet

• Planet, comet, solar system, galaxy, universe

• Universe, galaxy, solar system, planet, comet

• comet, planet, solar system, galaxy, universe

Explain why astronomers use light years or astronomical units to describe the distance a star is away from earth.

• The federation of astronomers decided this system was the most economical.

• Astronomers use light years to measure distances in space because space is so massive and distances so far that conventional numbering is inadequate and unmanageable.

• Light years and AU's are more like space names.

• There are not enough zeros to describe the distance properly.

Tags

NGSS.MS-ESS1-3

How far is a light year?

• 5280 ft per second.

• 1.5 million mph.

• The distance light travels in one year.

• It's 3 astronomical units.

When describing the distance between the earth and the sun, which distance would be appropriate to use?

• Astronomical unit.

• Light year.

• Parsec.

Tags

NGSS.MS-ESS1-3

Moons are considered planets because they revolve around a star.

• True

• False