Photosynthesis Starts With Answer Key Apr 2026

“So that’s why plants need water and sun!” Leo said.

Within an hour, Fronda’s leaves began to perk up. By afternoon, she was vibrant green again.

Ms. Green continued, “ these three ingredients: sunlight, water, and carbon dioxide. Inside the leaves, tiny structures called chloroplasts capture the sun’s energy. That energy splits water into hydrogen and oxygen. Then, the hydrogen combines with carbon dioxide to make glucose—plant food. Oxygen is released as a byproduct.” photosynthesis starts with answer key

“Exactly,” said Ms. Green. “And remember: sunlight—but without water and CO₂, it’s just a sunny day, not a meal.” Answer Key (for review or quiz) Use these answers to check understanding of the story.

Leo frowned. “But the sun is shining right on her.” “So that’s why plants need water and sun

“Don’t worry,” said Ms. Green, the science teacher. “Let’s figure out what’s wrong by remembering: sunlight.”

“True,” Ms. Green said. “But more than just light. It needs a partner: water from the soil and carbon dioxide from the air.” That energy splits water into hydrogen and oxygen

They checked the soil. It was dry as dust. Leo watered Fronda immediately.