Photosynthesis
What do plants do in photosynthesis?
Plants make their own food using sunlight.
What are the two things plants take in for photosynthesis?
Carbon dioxide and water
Name one reactant a plant needs to do photosynthesis.
Sunlight / water / carbon dioxide (any one).
Why is photosynthesis important to plants?
It gives the plant food to grow.
In simple words, describe what photosynthesis means.
Photosynthesis is how plants make food using sunlight, carbon dioxide, and water.
Write the word equation for photosynthesis.
Carbon dioxide + water → glucose + oxygen
Name the two products made in photosynthesis.
Glucose and oxygen
Why do animals (including us) need photosynthesis to happen in plants?
Because plants produce oxygen and food, which animals need.
Is photosynthesis a physical or chemical change? Why?
It is a chemical change because a new substance (glucose) is made.
Which part of the plant collects sunlight for photosynthesis?
The leaf collects sunlight using chlorophyll.
What happens to the oxygen made in photosynthesis?
Used for aerobic respiration
What is a chlorophyll and What role does chlorophyll play in photosynthesis?
It is a green pigment and its' role is to capture light for photosynthesis.
Explain why photosynthesis is called a chemical reaction.
Because the new substances are created — it’s a chemical reaction.
Why is sunlight written above the arrow in the equation?
Because sunlight is not a substance—it provides energy, not a product.
What do plants do with the glucose they make?
To store starch.
What might happen if plants had no chlorophyll?
The plant wouldn’t be able to absorb sunlight, and photosynthesis would stop.