Using Models to Predict

Lab Brief #4

🎯 Your mission

Run the experiment. Find out what really happens.

⚡ The twist

Nature loves to surprise the careful watcher.

What you'll learn

A model simplifies something too big, too small or too slow to study directly. Its value is that it makes a prediction you can check. Every model is wrong in some way; a useful one is wrong in ways that do not matter for the question asked.

Key words

model
A simplified representation used to explain or predict a system's behaviour.
prediction
What a model says should happen, stated before the test.

Make a hypothesis first

Before you start: write down what you think will happen, and why.

Say your guess out loud — then find out if you were right.

Get ready

🧰 What you need

foil tray
soil
watering can
water
small stones

Get ready

⚠️ Safety first

Wash hands after handling soil.
Work over a washable surface and mop spills at once.

Step 1 of 4 · Read

Think about what you just learned: say what "model" and "prediction" mean in your own words before you start.

Step 2 of 4 · Do

Model a water catchment with a foil tray, soil and a watering can. Predict where water will pool before you pour, then pour and compare. List two ways your model differs from a real hillside.

Step 3 of 4 · Observe

Record what actually happened, including anything that did not match what you expected.

Step 4 of 4 · Record

Write a conclusion that answers the question this lesson opened with, and state your uncertainty.

Question 1 of 2

A model is useful when it:

How sure are you?😐 maybe

Question 2 of 2

Every model is:

How sure are you?😐 maybe

Mind = blown

🔬 The more you look, the more nature shows you.

Nice work!

You got 0 of 2 right.

Next: Where Our Materials Come From All lessons

🎯

Next Smart Experiment

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

✨ More to explore

🌍 Where you see this in real life: This shows up in your everyday life more than you'd think.

🏆 Stretch challenge (try it this week): Try one experiment in real life this week — even a tiny one.

👨‍👩‍👧 For the dinner table: “What's the most surprising thing you learned today?”

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