24
Lesson 24 of 84 · Structure and Function
ExperimentWhat Do Plants Need to Grow?
What You'll Learn
Plants need sunlight, water, carbon dioxide, and nutrients from soil to grow. Their roots absorb water and minerals while their leaves capture sunlight for photosynthesis.
Key Words
- invertebrate
- species
- organism
Materials Needed
- cotton balls
- zip-lock bags
- labels
- seeds
- soil
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
Steps
Step 1 — Read
Read and learn: Plants need sunlight, water, carbon dioxide, and nutrients from soil to grow. Their roots absorb water and minerals while their leaves capture sunlight for photosynthesis.
Step 2 — Do
Compare your results with a partner.
Step 3 — Observe
Use your senses (except taste) to describe what you notice.
Step 4 — Record
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What type of consumer eats only plants?