test

Your classmate said that light bent around a corner to reach an object. Is this possible?

• No, light travels in straight lines only.

• Yes, light travels like a river, wherever there is an open path.

• Maybe; light travels in unpredictable ways.

• Yes, if the light is bright enough, then it can change direction to go around corners.

Tags

NGSS.MS-PS4-2

Which of these things is true about the Moon?

• The Moon is always moving around Earth in a circle.

• The Moon is always in the same position in Earth’s sky.

• The Moon is always moving in many changing patterns around Earth.

• The Moon is always moving back and forth across Earth’s sky.

Tags

NGSS.MS-ESS1-1

The diagram above shows Earth and the Moon from above (top view). Why is there a dotted circle drawn in this diagram?

• To show the locations where the sun’s light can reach the Moon.

• To show the locations of satellites that are in Earth’s atmosphere.

• To show the way that the Moon can move back and forth across Earth’s sky.

• To show that the Moon is always moving around Earth in a circle.

Tags

NGSS.MS-ESS1-1

VOCAB ALERT! What is the definition of MOON?

• a rocky sphere that travels around a planet

• to shine light on an object and make it visible

• the star that is the main source of light at the center of our solar system

• the border between light and dark on the Moon

Tags

NGSS.MS-ESS1-1

VOCAB ALERT! What is the definition of ILLUMINATE?

• a rocky sphere that travels around a planet

• to shine light on an object and make it visible

• the star that is the main source of light at the center of our solar system

• the border between light and dark on the Moon

VOCAB ALERT! What is the definition of SUN?

• a rocky sphere that travels around a planet

• to shine light on an object and make it visible

• the star that is the main source of light at the center of our solar system

• the border between light and dark on the Moon

Tags

NGSS.MS-ESS1-1

VOCAB ALERT! What is the definition of TERMINATOR?

• a rocky sphere that travels around a planet

• to shine light on an object and make it visible

• the star that is the main source of light at the center of our solar system

• the border between light and dark on the Moon

Tags

NGSS.MS-ESS1-1

The Moon does not make its own light. The sun illuminates the Moon.

• TRUE

• FALSE

Tags

NGSS.MS-ESS1-1

Leticia is a space scientist who made this diagram of the Moon and Earth as seen from above (top view), with sunlight coming from the left, as shown by the arrows. Why does Leticia’s diagram show that it’s brighter on the left half of the Moon?

• Because there is a shadow from Earth falling on half of the Moon.

• Because the Moon has some lighter-colored rock and some darker-colored rock

• Because half of the Moon that is facing the sun is lit by the sun, and the other half is dark.

• Because the Moon is round.

Tags

NGSS.MS-ESS1-1

Shira looked up one night and saw a full moon. How long will it be before she can see a full moon again?

• About one week.

• About one month.

• There is no way to tell because the Moon’s pattern is always changing.

• It could be two weeks or a month, depending on what time of year it is.

Tags

NGSS.MS-ESS1-1