Lesson 62 of 84 · Engineering and Design
Experiment⭐ 30 XP🛠️ Engineer ShopTechnology and Innovation (Part 3)
Engineering and Design.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
Constraints make you more creative, not less.
Mind = Blown
🛠️ The first computer bug was a literal moth stuck inside a machine in 1947.
Make a hypothesis first
Before you test: how many tries until it works?
What You'll Learn
Technology is the application of scientific knowledge to solve practical problems. From simple tools to complex computers, technology shapes how humans interact with the world.
Key Words
- wavelength
- frequency
Materials Needed
- tape
- scissors
- straws
- paper clips
- rubber bands
- string
Safety First
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
Steps
Read the introduction and identify the main idea of this lesson.
Build a water filter using a bottle, sand, gravel, cotton, and charcoal. Pour muddy water through and measure how clear the output is.
Look for patterns in your observations.
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3What happens when light hits a mirror?
Where you see this in real life
Your phone, your bike, your shoes — all designed with this idea.
Stretch Challenge
Try this in real life this week.
Build something — anything — out of stuff in your recycling bin.
For the dinner table
“What's something around the house you'd redesign — and how?”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Engineering and Design for 7th Grade
Get the full Engineering and Design track as a printable PDF — all lessons, worksheets, and answer keys.