Science - Unit 1 Assessment

1. Why does the Sun look different from other stars?

• The Sun is the brightest star in space, so it appears much larger and closer.

• The Sun is the closest star to Earth, so it appears much larger and brighter

• The Sun is the youngest star in the galaxy.

• The Sun is the hottest star in the galaxy.

Which sentence best explains why some stars look brighter than others from Earth?

• Some stars are made of different things

• Some stars are in different constellations.

• Some stars are a closer distance to Earth.

• Some stars are reflecting light from the Sun.

If the Sun were even farther away, how would that change how it looks from Earth?

• The Sun would look smaller and less bright

• The Sun would look larger and les bright

• The Sun would look smaller and brighter

• The Sun would look larger and brighter

Why do stars appear to be different sizes in the night sky?

• They are different distances from Earth.

• They are burning at different temperatures.

• They are burning different gases that make different size circles.

• They are part of complex constellations that need stars of different sizes.

Tags

NGSS.MS-ESS1-3

Which of the following best explains why nighttime stars appear so much smaller than the Sun?

• The sky is darker at night.

• The stars are farther from Earth.

• The stars are all smaller than the Sun.

• The Moon blocks out light from the stars.

If two stars have the same temperature and are the same distance from Earth, then the brighter star is

• faster

• larger

• smaller

• smaller

Kyle and Ella are talking about the Sun. Kyle tells Ella that the Sun is the largest star. Kyle says that is why it appears so big and bright. Is Kyle correct?

• No, the Sun appears big and bright because it is the hottest star.

• Yes, the Sun appears big and bright because it is the largest star.

• No, the Sun appears big, but not bright, because it is the largest star.

• No, the Sun appears big and bright because it is the closest star to Earth.

In the future, a team of astronauts explores deep space. The team's spaceship approaches a large yellow object. Instruments record light and heat energy being produced by the object. Which do the astronauts identify as the object?

• a planet like Earth

• a star like Earth's Sun

• a moon like Earth's moon

• . a giant planet, like Jupiter

Tags

NGSS.MS-ESS1-3

The pattern of stars in a constellation seems to stay the same. However, planets can be seen in different locations at different times. Why does this happen?

• because planets are orbiting

• because planets are twinkling

• because planets are larger than stars

• because planets are larger than stars

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which statement about planets and stars is true?

• Planets far outnumber stars in the night sky

• Planets are farther away from Earth than stars

• Only stars are made of gases that produce light.

• Only planets are made of solids that produce heat.