earth moon and sun 1

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

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.

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 sketched her observations. Which diagram best shows how the moon’s appearance could have changed during the month Oksana performed her investigation?

• a

• e

• c

• d

Tags

NGSS.MS-ESS1-1

Which phrase best defines the orbit of Earth?

• A. the position in space of Earth at a certain time

• B. the distance from the sun to Earth at any point

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

• D. the path Earth travels as it revolves around the sun

Tags

NGSS.MS-ESS1-2

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?

• A. The moon gives off its own light.

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

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

• D. 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?

• every 12 hours

• every 24 hours

• every 6 months

• every 12 months

Tags

NGSS.MS-ESS1-1

how long does it take the earth to orbit the sun?

• 24 hours

• 30 days

• 365 days

• 365.25 days

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

why does the moon always look the same?

• because the moons looks the same on all sides

• the moon does not rotate as it revolves

• the moon rotates at the same speed it revolves around the earth

• thats just a optical illusion

Tags

NGSS.MS-ESS1-1

The appearance of the moon changes from Earth because....

• the Earth's shadow falls on different parts of the moon.

• the amount of the moon that is illuminated changes over time.

• the moon's movement causes us to see different amounts of the illuminated half.

• light has to bend around the Earth' to reach the moon.

Answer explanation

half of the moon is always illuminated, but it's orbit around the Earth changes the amount of the half we can see.

Tags

NGSS.MS-ESS1-1