Ess 1-2

A sign makes a shadow on the playground. Mary drew the shadow at 2:00 p.m. and 4:00 p.m. Which of these explains the differences in the shadow at these two times?

• As Earth gets closer to the sun, shadows become shorter.

• The distance between Earth and the sun changes during the day.

• The angle between the sun and the signpost changes during the day.

• As the sun gets brighter, the size of the shadow made by the signpost increases.

Harry made this model of the sun and Earth. Which of these facts does the model let Harry demonstrate?

• The length of Earth’s year is 365 days.

• The seasons change on Earth as it orbits the sun.

• The sun lights one-half of Earth’s surface at a time.

• The time between one morning and the next is 24 hours.

Tags

NGSS.MS-ESS1-1

Earth is tilted on its axis. Which of these would not exist if Earth had no tilt?

• gravity

• seasons

• lunar phases

• Earth’s rotation

Tags

NGSS.MS-ESS1-1

Sean looks at his calendar. He sees that tonight’s phase of the moon will be a new moon. Which will be the next phase Sean sees after the new moon?

• full moon

• first quarter

• third quarter

• another new moon

Tags

NGSS.MS-ESS1-1

One of Earth’s motions causes it to have four seasons. Which of these motions causes Earth to have four seasons?

• revolving

• rotating

• spinning

• vibrating

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NGSS.MS-ESS1-1

Which set of pictures shows the correct order of moon phases?

• Full moon, New moon, First quarter moon, Third quarter moon

• New moon, First quarter moon, Full moon, Third quarter moon

• New moon, First quarter moon, Full moon, Third quarter moon

• Full moon, New moon, Third quarter moon, First quarter moon

Tags

NGSS.MS-ESS1-1

Aria and Rohan are comparing two objects with different masses. What happens to the gravitational force between the objects as one object's mass increases?

• increases

• decreases

• stays the same

• i don't know

Tags

NGSS.MS-PS2-4

Which of these choices explains why this model of the solar system cannot be correct?

• Earth does not have enough gravitational pull to be located in the center of the Solar System.

• Venus is larger than the Moon so it would be located closer to the center.

• Saturn has as much mass as Earth so it would be located in the center.

• Mars and Mercury have an equal amount of gravitational pull so should be on the same orbital pathway.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which planet in the Solar system has the shortest orbital period?

• Mercury

• Earth

• Jupiter

• Neptune

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The moon is a natural  ______ of Earth.

• comet

• axis

• satellite

• space probe

Tags

NGSS.MS-ESS1-1