The Sun-Made Food: Photosynthesis
Questions:
5
Grade:
4
Words:
73
Imagine if you could make your own food just by standing in the sun, wouldn't that be fun? This is exactly what plants do! They use sunlight, water, and carbon dioxide to create their food in a process called photosynthesis. But that's not all, they also produce oxygen - the air we breathe. Without photosynthesis, plants couldn't grow, and we wouldn't have oxygen to breathe. Can you imagine what would that be like?
Question 1
What process do plants use to make their food?
A
Respiration
B
Digestion
C
Photosynthesis
Explanation. Plants use sunlight, water, and carbon dioxide to create their food in a process called photosynthesis
D
Transpiration
E
Evaporation
Question 2
What is a by-product of photosynthesis that humans need to breathe?
A
Nitrogen
B
Hydrogen
C
Oxygen
Explanation. Plants produce oxygen during photosynthesis, which is the air we breathe.
D
Carbon dioxide
E
Methane
Question 3
What would happen if plants did not perform photosynthesis?
A
They would grow faster
B
They would change color
C
They would not grow
Explanation. Without photosynthesis, plants couldn't grow because they wouldn't be able to produce their own food.
D
They would produce more flowers
E
They would produce more fruits
Question 4
What are the three main things that plants need to perform photosynthesis?
A
Sunlight, water, and nitrogen
B
Sunlight, oxygen, and carbon dioxide
C
Carbon dioxide, water, and nitrogen
D
Sunlight, water, and carbon dioxide
Explanation. Plants use sunlight, water, and carbon dioxide to create their food in a process called photosynthesis.
E
Sunlight, water, and methane
Question 5
True or False: Humans could survive without the oxygen produced by plants.
A
True
B
False
Explanation. Humans need the oxygen that plants produce during photosynthesis to breathe.
C
Maybe
D
Depends on the human
E
None of the above
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