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Science · Grades 3–4

Photosynthesis

noun

The process by which green plants convert sunlight, water, and CO₂ into glucose and oxygen.

Example Sentences

"Photosynthesis occurs in chloroplasts found in plant cells."

"All food on Earth ultimately comes from photosynthesis."

Synonyms & Related Terms

food production

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.