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Science · Grades 1–2

Photosynthesis

noun

The process by which plants use sunlight, water, and carbon dioxide to make their own food.

Example Sentences

"Photosynthesis happens in the green parts of a plant."

"Without photosynthesis, plants could not survive."

Synonyms & Related Terms

food-making process

Quick Check

Which best describes the meaning of photosynthesis?

Study Tips

To remember photosynthesis, try writing it in a sentence of your own. Connect it to something you already know about science.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.