Luis created a clay model of Earth. To show how Earth rotates, Luis wants to use a toothpick to represent Earth's axis of rotation. Where should Luis place the toothpick?

• horizontally through Earth in the direction of Earth’s orbit

• vertically through the center of Earth, slightly to the side of each pole

• diagonally across Earth, halfway between the equator and the two poles

• horizontally through Earth from one side of the equator to the other side

Tags

NGSS.MS-ESS1-2

Each lunar cycle has one full moon, in which the relative positions of Earth, the sun, and the moon form in a straight line. Which list represents the position of Earth, the sun, and the moon during a full moon?

• Earth, sun, moon

• sun, moon, Earth

• moon, sun, Earth

• sun, Earth, moon

Tags

NGSS.MS-ESS1-1

Oksana observed the appearance of the moon every week for a month. She sketches her observations. Which of these diagrams BEST shows how the moon’s appearance could have changed during the month Oksana performed her investigation?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-1

What would happen if the time it took for Earth to make one rotation around its axis increased?

• A day would be shorter.

• A day would be longer.

• A year would be shorter.

• A year would be longer.

Which phrase best defines the orbit of Earth?

• the position in space of Earth at a certain time

• the distance from the sun to Earth at any point

• the spin of Earth on its axis as it moves forward

• the path Earth travels as it revolves around the sun

Tags

NGSS.MS-PS2-4

Sometimes the moon looks like a crescent. At other times, the moon looks like a half circle. What makes it possible to see the surface of the moon from Earth?

• Light from the sun is reflected by the moon’s surface.

• The moon gives off its own light.

• Light from Earth is reflected by the moon’s surface.

• The moon absorbs sunlight during the day and glows at night.

Tags

NGSS.MS-ESS1-1

In the picture of Earth, the United States is in the center. As Earth rotates, the position of the United States in this picture moves. How often would the United States be in the same position in this picture again?

• about every 12 hours

• about every 24 hours

• about every 6 months

• about every 12 months

Tags

NGSS.MS-ESS1-1

2. Which statement best explains why the same side of the Moon always faces Earth?

• The Moon travels at a faster speed than Earth.

• The Moon revolves around Earth and rotates in about the same amount of time.

• The Moon does not rotate as it revolves around Earth.

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NGSS.MS-PS2-4

Explain the difference between a total solar eclipse and an annular eclipse.

• During a total solar eclipse, people on the ground are completely in the umbra.

• Sunlight is totally blocked and the sky looks dark.

• An annular eclipse occurs if the moon’s umbra does not reach

  Earth.

• A thin ring of sunlight is visible around the edge of the moon.

• All of these are the correct answer.

Tags

NGSS.MS-ESS1-1

(PICK TWO ANSWERS)Trevor lives in an area that experiences the penumbra of a solar eclipse. Jen lives in an area that experiences the umbra of the eclipse. Explain the difference between the penumbra and the umbra, and describe the difference in the view of the sun for Trevor and Jen.

• The area of the umbra is darker than the area of the penumbra.

• Jen's view of the sun was totally blocked during the solar eclipse, but Trevor's view of the sun was only partially blocked.

• The area of the Umbreon is darker than the area of the base evolution of Eevee. All are inferior to Billy Nye's Scientific Law of Bad Jokes.

• Tina's view of the sun was not blocked by the solar flare, but Johnny's view of the sun was only partially blocked.

Tags

NGSS.MS-ESS1-1