Lesson 84 of 84 · Engineering and Design
Experiment⭐ 30 XP🛠️ Engineer ShopTechnology and Innovation (Part 4)
Engineering and Design.
🎯 Your mission
Run the experiment. Find out what really happens.
⚡ The twist
Constraints make you more creative, not less.
Mind = Blown
🌉 The Eiffel Tower can grow 6 inches taller in summer because metal expands when hot.
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
- criteria
- test
Materials Needed
- cardboard
- tape
- scissors
- straws
Safety First
- Do not mix unknown chemicals together.
- Tie back long hair before starting the experiment.
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.
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