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You can create printable tests and worksheets from these Grade 1 Light and Optics questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

Avery walks into her bedroom. It is dark and she cannot see anything. She flips on the light switch. A lamp turns on. She can now see her bed and everything else in her room.

Which object is a light source?
1. bed
2. lamp
3. light switch
When light is pointed at a mirror it
1. makes a rainbow.
2. reflects.
3. goes through it.
Max and Julie are investigating light. Max holds a metal cymbal in front of a wall. Julie uses a flashlight to shine a beam of light at the cymbal. Which best explains what they will observe on the wall?
1. Light will pass through the cymbal and light up the wall behind it.
2. Light will be will blocked by the cymbal and light up the wall behind it.
3. Light will pass through the cymbal and create a shadow on the wall.
4. Light will be will blocked by the cymbal and create a shadow on the wall.
You use a flashlight to shine a beam of light at a clear glass window. Which path will the light most likely follow?
1. All of the light will pass through the glass.
2. Some of the light will pass through the glass.
3. The glass will change the direction of the light.
4. The glass will block the light from passing through.
Which gives off its own light?
1. the Moon
2. the Sun
You use a flashlight to shine a beam of light at mirror. Which path will the light follow?
1. All of the light will pass through the mirror.
2. Some of the light will pass through the mirror.
3. The mirror will change the direction of the light.
You use a flashlight to shine a beam of light at cardboard. Which path will the light most likely follow?
1. All of the light will pass through the cardboard.
2. Some of the light will pass through the cardboard.
3. The cardboard will change the direction of the light.
4. The cardboard will block the light from passing through.
Kevin has four objects. Each one is made from a different material. He shines a light beam at each material. He writes his observations in the table.
ObjectLight Path
Ablocked
Bchanged direction
Cpartly blocked
Dpassed through

One of the objects is a block of wood. Which object is most likely wood?
1. A
2. B
3. C
4. D
Teagan has three objects. Each one is made from a different material. She shines a light beam at each material. She writes her observations in the table.
ObjectLight Path
Achanged direction
Bpartly blocked
Cpassed through

One of the objects is a piece of aluminum foil. Which object is most likely aluminum foil?
1. A
2. B
3. C
It is night. There is a thunderstorm. You are in your living room when the storm causes the power to go out. Your mother lights a candle.

Which best describes how well you can see a picture on the living room wall?
1. It is visible.
2. It is not visible.
3. It is somewhat visible.
Benny and his family are exploring a cave with a park ranger. When they are deep in cave they stop by a large rock. Everyone turns off their flashlights for a minute. Which best describes how the rock looks in the dark cave?
1. It is visible.
2. It is not visible.
3. It is partly visible.
Macy has four objects. Each one is made from a different material. She shines a light beam at each material. She writes her observations in the table.
ObjectLight Path
Ablocked
Bchanged direction
Cpartly blocked
Dpassed through

One of the objects is made of clear plastic. Which object is most likely clear plastic?
1. A
2. B
3. C
4. D