Photosynthesis

Plants Lesson 5

Photosynthesis

Photosynthesis

• Like all living things, plants need food in order to survive. Unlike humans, a plant cannot go to the grocery store and shop for food when it is hungry.

• This is not a problem because plants are able to make their own food.

Photosynthesis

• The process that plants use to make food is called photosynthesis.

• The word "photo" is the Greek word for "light." Plants rely on light from the sun to help them make food.

How Does Photosynthesis Work?

• Photosynthesis occurs inside of plant leaves. Plants breathe in air just like we do. When humans breathe, we want to breathe in oxygen.

• When plants breathe, they want to breathe in carbon dioxide, which is another gas found in the air.

Multiple Choice

What is the process called in which plants make their own food?

• seeds

• chloroplast

• photosynthesis

Multiple Choice

Where does photosynthesis occur?

• inside of plant leaves

• inside of seeds

• in the roots

How does Photosynthesis Work?

• Plants use carbon dioxide, water, and sunlight to make food inside of their leaves.

• Leaves are mde up of many tiny cells. Inside of each cell you can find chloroplast. Chloroplast is what makes leaves green!

Chloroplast

• Chloroplast mixes together carbon dioxide, sunlight, and water to make sugar and oxygen.

• Plants use the sugar as food to keep them alive, and breathe the oxygen back out into the atmosphere.

Multiple Choice

What three things do plants use to make food inside of their leaves?

• carbon dioxide, water, sunlight

• carbon dioxide, juice, sunlight

• oxygen, soda, sunlight

Multiple Choice

What makes the leaves of a plant green?

• markers

• oxygen

• chloroplast

Multiple Choice

What does a plant make during the process of photosynthesis?

• apple juice and pancakes

• sugar and oxygen

• salt and water vapor

Photosynthesis

So the important thing to remember is that plants use sunlight, carbon dioxide, and water to make food inside of their leaves. During this process they make sugar and oxygen, which helps us!