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

experiment
conclusion

Materials Needed

cardboard
tape
scissors
straws
paper clips

Safety First

Clean up spills immediately to prevent slipping.
Use materials only as directed in the experiment.
Keep small objects away from young children.

Steps

Step 1 — Read

Review the background information on Conservation before starting.

Step 2 — Do

Design and build a bridge from newspaper and tape that can hold a textbook. Test it and redesign to make it stronger.

Step 3 — Observe

Watch carefully for any changes and note the time.

Step 4 — Record

Create a data table to organize your measurements.

Check Your Understanding

Question 1

1 of 3

What is the independent variable?