Lesson 73 of 84 · Light and Sound

Lesson⭐ 30 XP⚡ Spark Lab

Light and Shadows (Part 4)

🧪Lab Brief #73

Light and Sound.

🎯 Your mission

Master the concept. Use it tomorrow.

⚡ The twist

The opposite of what you expect is often what happens.

🤯

Mind = Blown

🔥 A bolt of lightning is 5 times hotter than the surface of the sun.

🔮

Make a hypothesis first

Predict: what happens if you double the force?

What You'll Learn

Mirrors reflect light. When light hits a mirror, it bounces off like a ball bouncing off a wall.

Key Words

design
build

Steps

Step 1 — Read

Read the introduction. What is this lesson about?

Step 2 — Do

Build a tower from spaghetti and marshmallows. Measure how tall you can make it.

Step 3 — Observe

Look for something that changed. What is it?

Step 4 — Record

Circle the correct answer on your worksheet.

Check Your Understanding

Question 1

1 of 3

Why do we record what happens in experiments?

How sure are you going to be?😐 maybe

🌍

Where you see this in real life

You use this every time you flip a light switch, ride a bike, or kick a ball.

🏆

Stretch Challenge

Try this in real life this week.

Time how long a small ball rolls down something, then change the slope and try again.

👨‍👩‍👧

For the dinner table

“Show me something at home that uses this kind of energy.”

🎯

Next Smart Experiment

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

🌡️Share card

Share this experiment

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

🖨️

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