Topic 5 - The Sun, Stars, and Gravity 3rd Grade

Taylor reads about two stars in a book. The book says the stars are the same size. Taylor looks
at the stars in the sky. One of the stars looks much bigger than the other one. Why does one star
look bigger than the other one?

• It is dimmer than the other star.

• It is rougher than the other star.

• It is closer to Earth than the other star.

• It is more transparent than the other star.

Which of the following conclusions about these stars is most accurate?

• The brightness of Star A makes it larger in size.

• There are different types of stars, and some are larger than others.

• Stars are all the same size, and some are closer to Earth than others.

• Dust and gas between Star B and Earth make Star B look smaller than Star A.

This picture was taken with a very powerful telescope called the Hubble Space Telescope. The telescope enlarged the appearance of the stars in the picture many times. Why do the stars still look like small points of light and not big and round like the Sun?

• These stars are much older than the Sun.

• These stars are different types of stars than the Sun.

• These stars are all much smaller types of stars than the Sun.

• These stars are so far away from the Sun they cannot be seen any larger.

Tags

NGSS.MS-ESS1-3

Gerald was looking at stars one clear night. Gerald knows that our Sun is a star. Which statement best compares our Sun to other stars?

• Our Sun is larger than all the other stars.

• Our Sun is smaller than all the other stars.

• Our Sun is closer to Earth than all the other stars.

• Our Sun is farther from Earth than all the other stars.

Students are coloring outside on a warm spring day. They leave their crayons on the pavement and discover after school that the crayons are melted.

• The heat from the wind melted the crayons.

• The pavement was hot from heat inside Earth.

• Heat from the school building radiated out and melted the crayons.

• Heat energy from the Sun heated the pavement and melted the crayons.

Tags

NGSS.MS-PS1-4

Stars give off their own light. Which of the following is a star and gives off light?

• Earth

• Moon

• Planet

• Sun

The Earth, other planets, and sun are all a part of our solar system. How is the sun different from other parts of the solar system?

• The sun is generating most of the light and heat in our solar system.

• The sun is made up of elements that cannot be found on planets in our solar system.

• The sun is smaller than some of the planets in our solar system.

• The sun is farther from our solar system than the planets.

Which of these is a from of the Sun's energy that travels to Earth?

• light

• sound

• sun spots

• electricity

The Sun appears to be the brightest star in the sky. What causes the Sun to appear so bright to people on Earth?

• The Sun is the oldest star.

• The Sun is the hottest star.

• The Sun is the largest star.

• The Sun is the closest star.

Sirius is a white star that is larger and brighter than our yellow Sun, but a night, Sirius looks like a normal star. Why does our Sun appear so large and bright in the sky, but Sirius does not?

• because our Sun is a yellow star and Sirius is a white star

• because our Sun is very close to Earth compared to Sirius

• because Sirius shines only at night and our Sun shines only during the day

• because the light from our Sun increases when it passes through Earth's atmosphere, but Sirius's light does not