Light and Shadows Quiz

Grade 1 · Science · Quiz

Test your knowledge of light sources and how shadows are made.

Questions

1. Which of these is a natural source of light?

   1. A lamp
   2. The sun
   3. A flashlight
   4. A candle
   Show answer

   Answer: The sun

   The sun is a natural light source. Lamps, flashlights, and candles are artificial light sources made by people.

2. What forms when an opaque object blocks light?

   1. A rainbow
   2. A reflection
   3. A shadow
   4. A beam
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   Answer: A shadow

   When an opaque object blocks light, a shadow — a dark area — forms on the other side.

3. Glass is an opaque material.

   Show answer

   Answer: False

   Glass is transparent, meaning light passes through it. Opaque materials block light.

4. If you move your hand very close to a lamp, your shadow will be:

   1. Smaller
   2. The same size
   3. Bigger
   4. Gone
   Show answer

   Answer: Bigger

   When an object is closer to a light source, its shadow is bigger. Moving farther away makes the shadow smaller.

5. In the morning, when the sun is low, shadows are:

   1. Short
   2. Long
   3. Round
   4. Gone
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   Answer: Long

   When the sun is low in the sky (morning or evening), it casts long shadows.

6. Light travels in curved lines.

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   Answer: False

   Light travels in straight lines, not curves. This is why you cannot see around a corner.

7. When does the sun make the shortest shadows?

   1. Early morning
   2. Late evening
   3. Around midday
   4. At night
   Show answer

   Answer: Around midday

   When the sun is highest in the sky around noon, shadows are the shortest.

8. Which material would NOT create a shadow?

   1. A wooden plank
   2. A thick book
   3. Clear glass
   4. A rock
   Show answer

   Answer: Clear glass

   Clear glass is transparent — light passes through it, so it does not create a shadow.

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