Light Energy

What does the pencil in this picture show about light?

• Refraction

• Reflection

• Absorption

• Transmission

Kya pointed a laser straight in front of her. The light from the laser traveled back to Kya. What could have changed the direction of the laser?

• A concrete wall

• A window with curtains

• A transparent window

• A compact mirror

Itzel put a flashlight on the kidney table and shined the light on the wall. Then she put an index card with a hole in the center in front of the card. Itzel could still see the light on the wall. Why could she still see the light?

• The index card absorbed all the light.

• The index card had a hole that let light pass through.

• The light bounced off the index card

• The light bent off the card in different directions.

Allison is standing by the shoreline looking at mangrove roots in the water. The roots look bigger outside the water and smaller in the water. What happens to light as it travels from air to water?

• It is absorbed.

• It reflects.

• It stops.

• It bends.

Lillianna and Zion are studying light energy. They each had a clear plastic cup with the same amount of water in it. Their starting temperatures were 75 degrees. Lillianna painted her cup black. Zion painted his cup white. Then, they put both cups under the same heat lamp. The temperatures after 15 minutes are shown in the picture. What could explain the difference in temperatures?

• Lillianna used a darker color paint, resulting in a higher temperature.

• The heat lamp was closer to Lillianna's cup than Zion's cup.

• Lillianna's starting temperature was 80 degrees.

• The water in Lillianna's cup evaporated, Zions did not.

After finishing an investigation, scientists communicate their results with other scientists. A scientist wants to review another scientists investigation. How she check the work?

• Look at misspelled words.

• Repeat the investigation, and change it to see if she gets the same results.

• Repeat the investigation without changing anything to see if she gets the same results.

• Check the graph to see there are no math mistakes.

Which of the following is NOT an example of light energy?

• the Sun

• a flashlight

• A fire

• An oven