What Is Photosynthesis? | Worksheet - Free Printable

Let's solve the problem step by step using the diagram and the word bank provided.

Step 1: Understand the Diagram

The diagram shows:
- A sun emitting light.
- A plant with roots in soil.
- Arrows showing:
- Carbon dioxide entering the plant from the air.
- Water being absorbed from the soil through the roots.
- Oxygen being released into the air.
- Sugar (glucose) being formed inside the plant.

Step 2: Use the Word Bank

The word bank includes:
- water
- sugar
- carbon dioxide
- light
- oxygen

We need to fill in the blanks in the sentence:

> "Photosynthesis is a process in which plants use ________ from the sun to convert ________ from the air and ________ from the soil into ________ to feed the plant. During this process, the plant releases ________ into the air as a waste product."

Step 3: Fill in the Blanks

Let’s go through each blank:

1. "use ________ from the sun"
→ The sun provides light, so the first blank is light.

2. "convert ________ from the air"
→ The plant takes in carbon dioxide from the air, so the second blank is carbon dioxide.

3. "and ________ from the soil"
→ The plant absorbs water from the soil, so the third blank is water.

4. "into ________ to feed the plant"
→ The plant produces sugar (glucose) as food, so the fourth blank is sugar.

5. "releases ________ into the air as a waste product"
→ The plant releases oxygen as a byproduct, so the fifth blank is oxygen.

Final Answer:

> Photosynthesis is a process in which plants use light from the sun to convert carbon dioxide from the air and water from the soil into sugar to feed the plant. During this process, the plant releases oxygen into the air as a waste product.

✔ This matches the scientific process of photosynthesis:
$$
\text{Carbon dioxide} + \text{Water} + \text{Light energy} \rightarrow \text{Glucose (sugar)} + \text{Oxygen}
$$

Explanation:

Photosynthesis is how green plants make their own food. They use sunlight to transform carbon dioxide (from the air) and water (from the soil) into glucose (a type of sugar) and oxygen. The glucose feeds the plant, and oxygen is released into the atmosphere.