57
Lesson 57 of 84 ยท Ecosystems
ExperimentPollination: Flowers and Bees (Part 2)
What You'll Learn
Plants have specialized structures: roots anchor the plant and absorb water, stems transport materials, leaves capture sunlight, and flowers produce seeds for reproduction.
Key Words
- trait
- dominant
- recessive
Materials Needed
- small pots
- cotton balls
- zip-lock bags
- labels
- seeds
- soil
Safety First
- Keep small objects away from young children.
Steps
Step 1 โ Read
Read about Ecosystems and write down three key facts.
Step 2 โ Do
Model natural selection: scatter colored paper scraps on grass. Time how long it takes a partner to pick up each color. Which color survived longest? Why?
Step 3 โ Observe
Watch carefully for any changes and note the time.
Step 4 โ Record
Create a data table to organize your measurements.
Check Your Understanding
Question 1
1 of 3What part of a plant absorbs water from the soil?
