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Grade 6-8

Forces and Interactions: Magnetism, Elasticity, and Balloon Car

by Max S. | Science

Learning Standards: MS.PS2.1 MS.PS2.2 MS.PS2.3 MS.PS2.1; MS.PS2.2; MS.PS2.3;
5 Lessons 12:37
  1. 1. Elasticity 2:04
  2. 2. Use of Force 2:56
  3. 3. Balloon Car Lab 1:18
  4. 4. Lab analysis 2:20
  5. 5. Recap 3:59

Grade 6-8


NGSS Standards

About the course

Put your knowledge of force, friction, magnetism and electricity into action by building your own balloon-powered car! Examine the properties of magnets and springs, and test out different ways of creating motion and movement with these basic elements.

Magnets, electricity, force, and friction - master the crucial concepts of Forces and Interactions!


Balloon Car

Course overview



Students will learn the basic properties of elasticity and how elastic force relates to length and stiffness.


Use of Force

Students will learn how force relates to the rotation of an object.


Balloon Car Lab

Students will build, test, and observe their own balloon car


Lab analysis

Students will recognize the effect of gravity, friction, elasticity, etc. on the lab they just conducted.



Students will recall the key points of the week’s videos for retention.

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Assess your learning with a quiz.

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  • Magnets
  • Physics
  • Science
  • Science Experiments
  • Springs

Recommended Materials

  • Balloon Car Materials: Open floor space
  • Wheels (round objects like CDs and bottle caps, etc.)
  • Axles (wooden skewers, pencils, straws, etc.)
  • Frame/body (plastic bottles, cardboard boxes, popsicle sticks, etc.)
  • Straws
  • Balloons
  • Rubber bands
  • Tape
  • Scissors
  • Spring
  • Magnets
  • Spring scale


Max is a physics enthusiast and rising senior at Rutgers University. Academically, he is most intrigued by the intuitive and approachable nature of forces and mechanics. Outside of physics, Max likes to stay active and follow sports.

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