39

Lesson 39 of 84 ยท Ecosystems

Experiment

Plant Roots and Their Jobs

What You'll Learn

All living things share basic characteristics: they grow, reproduce, respond to their environment, and need energy to survive. Plants make their own food through photosynthesis, while animals must eat other organisms.

Key Words

  • symbiosis
  • parasite

Materials Needed

  • water
  • plastic wrap
  • ruler
  • magnifying glass
  • paper towels
  • markers

Safety First

  • Wear safety goggles when mixing liquids.

Steps

Step 1 โ€” Read

Review the background information on Ecosystems before starting.

Step 2 โ€” Do

Collect and classify 10 organisms from your yard into kingdoms, phyla, or groups. Use a dichotomous key if available.

Step 3 โ€” Observe

Look for patterns in your observations.

Step 4 โ€” Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What is germination?