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Photosynthesis Quiz for Grade 6

10 science questions on photosynthesis with answers, written for Grade 6. Use it as it is, change any question, print it with an answer key, or give it online and let it grade itself.

1.
What is the main pigment in plants that absorbs sunlight for photosynthesis? (Multiple choice)
  1. Xanthophyll
  2. Chlorophyll
  3. Carotene
  4. Melanin
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Chlorophyll

Chlorophyll is the green pigment that captures light energy for photosynthesis.
2.
During photosynthesis, plants take in carbon dioxide and release which gas? (Multiple choice)
  1. Nitrogen
  2. Hydrogen
  3. Oxygen
  4. Carbon monoxide
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Oxygen

Plants release oxygen as a byproduct of photosynthesis.
3.
Which part of the plant cell contains chlorophyll? (Multiple choice)
  1. Mitochondria
  2. Cell wall
  3. Chloroplast
  4. Nucleus
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Chloroplast

Chloroplasts contain chlorophyll and are the site of photosynthesis.
4.
What are the raw materials needed for photosynthesis? (Multiple choice)
  1. Nitrogen and water
  2. Glucose and oxygen
  3. Oxygen and glucose
  4. Water and carbon dioxide
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Water and carbon dioxide

Photosynthesis uses water and carbon dioxide to make glucose and oxygen.
5.
Which of these is a product of photosynthesis? (Multiple choice)
  1. Glucose
  2. Water
  3. ATP
  4. Carbon dioxide
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Glucose

Glucose is produced by plants during photosynthesis as food.
6.
Photosynthesis occurs only during the day when sunlight is available. (True or false)
  1. True
  2. False
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True

Sunlight is necessary for photosynthesis, so it mainly occurs during the day.
7.
Plants get their energy directly from the soil. (True or false)
  1. True
  2. False
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False

Plants get energy from sunlight, not from the soil.
8.
Name the process by which plants make their own food using sunlight. (Identification)
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Photosynthesis

Photosynthesis is the process plants use to make food from sunlight.
9.
The gas that plants absorb from the air for photosynthesis is _____. (Fill in the blank)
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carbon dioxide

Plants take in carbon dioxide from the air for photosynthesis.
10.
Match each term with its correct description. (Matching type)
1. Chlorophyll
A. Sugar produced by photosynthesis
2. Glucose
B. Gas absorbed by plants
3. Oxygen
C. Gas released during photosynthesis
4. Carbon dioxide
D. Green pigment that absorbs sunlight
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1 = Green pigment that absorbs sunlight; 2 = Sugar produced by photosynthesis; 3 = Gas released during photosynthesis; 4 = Gas absorbed by plants

Each term relates to a key component or product of photosynthesis.