Unit 3 Review

Based on the information given, which is the most likely reason we have not sent humans to investigate the nearest Earth-like planet?

• Humans would have to travel through the vacuum of space to get there.

• The nearest Earth-like body does not have conditions friendly to humans.

• There is no reason to travel to any celestial bodies outside our solar system.

• Due to the enormous distances in space, it would take humans too long to travel there.

Tags

NGSS.MS-ETS1-1

Which point on the chart best represents the approximate size of Earth?

• X

• W

• Y

• Z

Tags

NGSS.MS-ESS1-3

One of the ways that scientists determine the distance between Earth and other objects in space is to send light waves toward an object and measure how long it takes for the waves to bounce back. If a scientist sent light waves to four different objects in space, which of the following would take the longest to reflect the light wave back to Earth due to their distance from Earth?

• A star in the Milky Way Galaxy

• A star in the Andromeda Galaxy

• A planet in Earth's Solar System

• A planet in another star system within the Milky Way Galaxy

Tags

NGSS.MS-ESS1-3

NGSS.MS-PS4-2

Proxima Centauri is the closest star to Earth, after the Sun. It is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

• 1 year

• 43 years

• 4.3 years

• 63,200 years

The Andromeda Galaxy was previously called the Great Andromeda Nebula because astronomers thought this patch of light was composed of glowing gases. In the 1900s, scientists determined the nebula was actually a spiral galaxy. Which of the following describes the relationship between this galaxy and other astronomical bodies?

• This galaxy is the largest star and is found in the universe.

• This galaxy is surrounded by thousands of stars in the universe.

• This galaxy includes a universe that is composed of millions of stars.

• This galaxy is one of billions of galaxies in the universe and contains billions of stars.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which object is closest to Earth?

• Barnard's Star

• Planet Neptune

• Triangulum Galaxy

• Andromeda Galaxy

Tags

NGSS.MS-ESS1-3

In 2004 the Hubble Space Telescope captured images of distant star clusters, each containing about a million stars. These star clusters were most likely part of which structure?

• galaxy

• nebula

• Solar system

• Asteroid belt

Tags

NGSS.MS-ESS1-2

If "Z" represents a planet, what would "Y" most likely represent?

• A universe because it contains billions of planets.

• A solar system because it contains planets and a star.

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

• A galaxy because it contains one solar system that has several planets.

Which of the astronomical bodies below are composed of a single star, moons, planets, comets, asteroids, and meteors?

• Galaxy

• Nebula

• Universe

• Solar System

Tags

NGSS.MS-ESS1-3

Susan is making a model to represent a universe, galaxy, and a star. She places a bowl inside a shoebox. She places a ball inside the bowl. What do the shoebox, bowl, and ball represent?

• The shoebox represents a universe, the bowl represents a star, and the ball represents a galaxy.

• The shoebox represents a universe, the bowl represents a galaxy, and the ball represents a star.

• The shoebox represents a galaxy, the bowl represents a universe, and the ball represents a star.

• The shoebox represents a star, the bowl represents a galaxy, and the ball represents a universe.