Galaxies

A star named Sirius appears as the brightest star in the night time sky, even though a star named Pollux actually gives off more light. Which of the following best explains why Sirius appears brighter than Pollux in our nighttime sky?

• Sirius has a different color than Pollux does.

• Sirius has different gases than Pollux does.

• Sirius is closer to Earth than Pollux is.

• Sirius is larger than Pollux is.

There are so many stars in the universe that it is hard to count them.Our Sun is a star that is located near the edge of the large group of stars shown above.

What is this large group of stars called?

• the Milky Way galaxy

• the universe

• the Whirlpool galaxy

• the solar system

Tags

NGSS.MS-ESS1-2

The Sun, like other stars, is a ball of hot, glowing gas. Which statement best describes the Sun?

• The Sun is one of billions of stars in the universe.

• The Sun is one of billions of stars in the solar system.

• The Sun is at the center of the Milky Way galaxy.

• The Sun is farther from Earth than any other star.

Constellations, or patterns of light in the sky, are made up of which of the following?

• stars

• glowing planets

• comets

• meteors

What items make up a galaxy?

• Gas & Dust

• Objects that orbit stars

• Many Stars

• All of these (Gas & Dust, Objects that orbit stars, and Many Stars)

There are so many stars and planets in the universe that it is hard to count them. Our Solar system is located near the edge of the large group of stars shown above.

What is this large group of stars called?

• the solar system

• the Milky Way galaxy

• the universe

• the Whirlpool galaxy

Tags

NGSS.MS-ESS1-2

Why does the Sun seem larger and brighter than other stars?

• The Sun can be seen from Earth during daylight hours.

• The Sun reflects light from all the moons in the solar system.

• The Sun is closer to Earth than other stars in the universe.

• The Sun can make its own light.

Which statement best describes our Sun?

• It is one of many stars in the universe.

• It is the only star in the universe.

• It is a planet in our solar system.

• It is a type of comet.