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MISSION VERIFIED

Classroom tested. Teacher designed. Safe at home.

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Designed by Darin Carr (BScDip Ed)

Practising NESA accredited

Australian Science Teacher

★ 30+ years of classroom experience

MISSON PROGRESS

24

young scientists have completed this mission.

I'VE COMPLETED THIS MISSION

Click to let us know you have completed this mission

LATEST TEACHER FEEDBACK

No feedback yet for this experiment. Use it with your class and let us know how it went!

HELP IMPROVE THIS INVESTIGATION

USE THIS WITH YOUR CLASS OR AT HOME?

We would love to hear your feedback.

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Before you investigate... watch the mystery

MISSION HOOK

Professor Picklebottom and the team are travelling and collecting amazing science mysteries.

✔ Coming in Term 1 2027

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Share the science! Tag @the_crazy_scientist on Instagram

— we love seeing your experiments!

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Mission Equipment

Gather your materials and get

ready for an amazing mission!

• Elastic Energy Launcher (commercial or homemade)
• Toy car
• Modelling clay or playdough
• Tape measure or ruler
• Recording sheet
• Pencil

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Let’s Investigate

Follow the missions steps below to solve the mystery.

1

Big Title

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Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

Gather your materials and get

ready for an amazing mission!

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

1

Prepare Your Car

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

1

Prepare Your Car

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

1

Big Title

Snail Slime step 2.jpg

Gather your materials and get

ready for an amazing mission!

PREDICT

OBSERVE

EVIDENCE

ASK

SAFETY

TIP

PREDICT

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Alex

Mass Attack! – Car Race

Alex lined up two identical cars on the starting line.

Then he pressed a giant lump of modelling clay onto one of them.

Suddenly the race wasn’t fair anymore.


Or was it?

Which car would travel further?

The light car?

The heavy car?


Or would they travel exactly the same distance?

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Ages

7-12 yrs

Duration

min
15

Difficulty

Medium

Stage

Stage 2-3

Cite this resource 

Created by Darin Carr (BSc, DipEd)
NESA Accredited Teacher · Chemistry & Physics Specialist · 30+ years in-class teaching
Resource Version: 1.0
First Published: 

Last Updated: 

11 June 2026
3 July 2026

The Crazy Scientist LAB Learning System™

Every experiment follows The Crazy Scientist Lab Learning System™ — a simple way to help kids think like real scientists.

We

  • LINK to what they already know,

  • ACTIVATE curiosity through hands-on discovery

  • BUILD understanding that actually sticks.

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Have you ever noticed that some things are much harder to push than others?


An empty shopping trolley is easy to move.

A full one takes much more effort.

Cars, trains and rockets all behave the same way.


Today you'll investigate how changing an object's mass affects its motion.

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Think back to your two launches — the car without playdough and the car with it.


  • Which car travelled further? Was that what you expected?

  • The launcher stayed the same both times. So what was the only thing that changed?

  •  Why do you think the extra mass made a difference to the distance?

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More mass = harder to accelerate — that's Newton's Second Law at work.


  • A loaded truck and an empty truck brake at the same time. Which one stops faster?

  •  A rocket burns fuel as it flies and gets lighter. How does that change how fast it can go?

  • A racing car engineer wants to go faster without changing the engine. What's the easiest fix?

"Want the full teacher guide? The Crazy Scientist Lab includes classroom delivery tips, how to manage the WOW moment, differentiation for Stage 2 & 3, — ready to teach tomorrow."

Think Like a Scientist

Scientists don't just do ONE experiment; they change one part of the experiment (independent variable) and then see how it affects another part of the experiment

(dependent variable)

Change ONE variable and test again.

What happens if you add more modelling clay to the car?

What happens if you use the same mass but launch from a different distance setting?

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Dr Puddledrip’s Science Tip
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🧪 Try it! Change ONE thing and test again. What did you discover?

Want to go deeper? Tap a section below to explore. ▼

The Science Behind It

Force and Motion


When the launcher releases, it pushes on the car.

Scientists call this push a force.

Forces can change the speed or direction of an object.


Mass Matters


Mass is the amount of matter in an object.

Adding modelling clay increases the mass of the car.

But how does that change the way the car responds to the launcher’s force?


That’s what you’ll investigate.


Looking for Patterns


Scientists rarely rely on a single result.

By repeating tests and recording measurements, they look for patterns in their data.


Those patterns help scientists develop explanations about how the world works.


Real-World Connections


Engineers think about mass every day.

Race cars, rockets, bicycles and even electric vehicles are designed with mass in mind.

Small changes in mass can sometimes make a surprisingly large difference to performance.

Teachers & Homeschoolers: Print-ready HD versions of this Science Behind It poster and companion G&T Challenge Card are available inside The Crazy Scientist LAB.

Extension: HPGE / Gifted Learners

Professor Picklebottom’s Scientist Challenge

You’ve already discovered that adding more mass can change how far a car travels.

Now investigate a different variable:


Force Challenge


Question

How does changing the force affect the distance travelled?


What To Do

Keep these the same:

✅ Same car

✅ Same amount of playdough

✅ Same surface


Change only:


How far you pull back the launcher

Teachers & Homeschoolers: Print-ready HD versions of this Science Behind It poster and companion G&T Challenge Card are available inside The Crazy Scientist LAB.

Vocabulary

Acceleration

Acceleration is how quickly an object speeds up, slows down, or changes direction.


Force

Force is a push or pull that can make an object move, stop, or change speed.

Know a parent or teacher who'd love this? Send it on! 👇

READY TO TEACH THIS
TOMORROW?

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Running the experiment is easy; however, teaching it well is another challenge.

Teachers often ask:

How do I adapt this for Stages 1,2 or 3?

What misconceptions will they have?

What syllabus outcomes does it cover?

What do I do with fast finishers?

How do I structure this for a full class?

What do I say when they ask WHY?

BUILD AROUND THE LAB LEARNING SYSTEM

Every resource is designed using our teaching framework.

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Inside The Crazy Scientist LAB

Everything you need to confidently teach science tomorrow.

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Opening early 2027. Join the Founding Member Waitlist

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Try Another Crazy Experiment

Keep the science going with these fun experiments

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Stage 1-3

090

MISSION

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The Sneaky Can

Can you move a can without ever touching it?

EASY

EASY

Can you move a can without ever touching it?

No strings.

No magnets.

No blowing.

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Stage 1-3

089

MISSION

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Hair-Raising Science

Can something invisible make your hair stand on end?

EASY

EASY

Can something invisible make your hair stand on end?

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Stage 1-3

088

MISSION

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Coolest Cup Challenge

Which cup will keep your drink cold the longest on a hot summer day?

EASY

EASY

Why do some cups keep your drink colder for longer?

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Kids Science

Parties Sydney

High-energy, unforgettable birthday experiences

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Amazing

Science Incursions in the Inner West

Bring the same

high-energy science into your school.

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Teacher-Led Science Clubs Across Sydney

Available to schools in the Inner West and surrounding areas.

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Hands-On Science Workshops

Interactive STEM experiences aligned to the NSW syllabus.

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The Crazy Scientist® delivers curriculum-aligned science incursions, experiments, workshops and learning resources for Australian schools and families.

© The Crazy Scientist® Pty Ltd (ABN: 69 679 628 632). 
All rights reserved.

THE CRAZY SCIENTIST® is a 
registered trademark

(No. 1622307).

NSW K–6 Curriculum-Aligned Science Incursions

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