Science Unit 1

Why does the Sun appear to be brighter and larger than other stars we see from Earth?

• The Sun is smaller than the Earth.

• The sun is the closest star to our Earth.

• The Sun is the largest star in the galaxy.

• The Sun is the brightest star we see at night.

We would know that a star is our Sun if the answer is "yes" to which of the following questions?

• Is it the largest star in the galaxy?

• Is it one of the stars that we can see at night?

• Is it the closest star to our planet?

• Is it the brightest star in the galaxy?

Which of the following is true about stars?

• Stars have many different sizes.

• All stars are exactly the same brightness.

• Stars can only be seen during the day.

• The brighter a star, the farther away it is.

A student notices that the Sun is the brightest star we can see from our planet. What claim BEST states why the Sun is the brightest?

• The Sun is the closest star to our planet.

• The Sun is the biggest star in the galaxy.

• The Sun is the brightest star in the galaxy.

• The Sun is the only star we can see from our planet.

The table shows the number of hours of daylight on the first day of each season.

Fall: 11

Winter: 10

Spring: 11

Summer: 12

Based on the information in the data table, which of the following is true?

• Spring had the most daylight hours

• Fall had more daylight hours than spring.

• Spring had the most daylight hours

• All seasons had the same amount of daylight hours.

The Sun appears to be the brightest and largest star in the sky. Which claim is true about the Sun?

• It is a smaller than a planet

• It is bigger than all other stars.

• It is a medium-sized star.

• It is smaller than all other stars.

The time of sunrise and sunset changes throughout the year. Because of this, what else changes?

• The number of daylight hours

• The number of seasons

• The size of our planet

• The shape of Earth

Tags

NGSS.MS-ESS1-1