Earth Moon Sun

How does light travel?

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

• Light travels in straight lines only.

• Light travels in unpredictable ways.

• It depends; if the light is bright enough it can change direction.

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.

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.

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.

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

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

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

FUN ALERT. Of the listed, what is your favorite pizza topping?

• only cheese, please.

• pepperoni, yum, yum!

• jalapeño, spice is nice!

• pizza, gross, I'll pass on that altogether.

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

• TRUE

• FALSE