31

Lesson 31 of 84 ยท Engineering and Design

Experiment

Conservation: Protecting Our Resources (Part 2)

What You'll Learn

Conservation efforts protect natural resources and biodiversity. Reducing waste, recycling, protecting habitats, and using renewable energy all help preserve Earth's resources.

Key Words

  • conclusion
  • evidence

Materials Needed

  • rubber bands
  • string
  • cups
  • aluminum foil
  • ruler
  • markers

Safety First

  • Use materials only as directed in the experiment.
  • Keep small objects away from young children.
  • Work in a well-ventilated area when using vinegar or other strong-smelling substances.

Steps

Step 1 โ€” Read

Read and learn: Conservation efforts protect natural resources and biodiversity. Reducing waste, recycling, protecting habitats, and using renewable energy all help preserve Earth's resources.

Step 2 โ€” Do

Gather your materials and set up your workspace.

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 3

What is the independent variable?

Conservation: Protecting Our Resources (Part 2) โ€” Engineering and Design | 4th Grade Science | LittleActivity | LittleActivity