40
Lesson 40 of 84 · Waves
ExperimentTechnology and Innovation (Part 2)
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
- rubber bands
- string
- cups
- aluminum foil
Safety First
- Handle glass items carefully to avoid breakage.
- Do not mix unknown chemicals together.
Steps
Step 1 — Read
Read and 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.
Step 2 — Do
Follow the procedure carefully, step by step.
Step 3 — Observe
Look for patterns in your observations.
Step 4 — Record
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3What happens when light hits a mirror?