Unit 1 and Unit 2 Science Spiral

When water molcules are grouped close together, the water is ...

• visible

• not visible

When water molecules are far apart, water is......

• visible

• not visible

The student made the salt water solution by mixing salt and water together in a cup. She wanted to be able to prove that the salt was still in the water, even though it could not be seen. Which question could she ask?

• Can the water be stirred?

• What happens when sugar is added?

• Does the water taste salty?

• What temperature is the water in the cup?

Tags

NGSS.MS-PS1-2

How many months does it take for the pattern in the number of daylight hours to repeat?

• 1

• 3

• 6

• 12

Tags

NGSS.MS-ESS1-1

Marta observes a pattern of day and night. Which statement BEST explains why the pattern of day and night repeats every 24 hours?

• It takes the Sun 24 hours to make one complete rotation on its axis.

• It takes Earth 24 hours to make one complete rotation on its axis.

• It takes Earth 24 hours to make one complete orbit around the Sun.

• It takes the Moon 24 hours to make one complete orbit around Earth.

Tags

NGSS.MS-ESS1-1

Marta observes that the Sun appears to move east to west across the sky throughout the day. Which statement describes the reason for Marta's observation?

• The Sun appears to move east to west across the sky because of Earth's rotation on its axis.

• The Sun appears to move east to west across the sky because the Sun is larger than Earth.

• The Sun appears to move east to west across the sky because the Sun revolves around Earth.

• The Sun appears to move east to west across the sky because of the speed of Earth's orbit.

Tags

NGSS.MS-ESS1-1

What evidence supports the claim that stars closest to Earth appear to be the brightest?

• The Sun is the dullest star and the only star in our solar system.

• The Sun is the dullest star and the farthest from our solar system.

• The Sun is the brightest star and the only star in our solar system.

• The Sun is the brightest star and the farthest from our solar system.

Why is the Sun the brightest star in the sky?

• The Sun is a large star, so the brightness is a result of its enormous size.

• The Sun is a large star, so the brightness is a result of its reflection from the Moon.

• The Sun is an average size star, so its brightness is a result of its closeness to Earth.

• The Sun is an average size star, so the brightness is a result of its extreme distance from Earth.

Which statement BEST describes the Sun?

• The Sun is the only star.

• The Sun is the largest star.

• The Sun is the closest star to Earth.

• The Sun is the same size as the Moon.