31

Lesson 31 of 84 ยท Engineering and Design

Experimentโญ 30 XP๐Ÿ› ๏ธ Engineer Shop

Conservation: Protecting Our Resources (Part 2)

๐ŸงชLab Brief #31

Engineering and Design.

๐ŸŽฏ Your mission

Set it up. Test it. Be amazed.

โšก The twist

Every solution creates a new problem. That's good โ€” that's the next project.

๐Ÿคฏ

Mind = Blown

๐Ÿš€ The Saturn V rocket burned 20 tons of fuel per second at liftoff.

๐Ÿ”ฎ

Make a hypothesis first

Predict: which design will hold the most weight?

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

Review the background information on Engineering and Design before starting.

Step 2 โ€” 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 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?

๐ŸŒ

Where you see this in real life

Your phone, your bike, your shoes โ€” all designed with this idea.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Build something โ€” anything โ€” out of stuff in your recycling bin.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's something around the house you'd redesign โ€” and how?โ€

๐ŸŽฏ

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

๐ŸชจShare card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

๐Ÿ–จ๏ธ

Checkout complete lesson on Engineering and Design for 4th Grade

Get the full Engineering and Design track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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