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Carolina™ Simple Machines: Wheels, Gears, and Axles Kit

Item # 751346 Online Only Exclusive

Grades 6–12. Learn how various gear ratios and combinations affect the speed, direction, and torque of a small student-built electric car. Students calculate mechanical advantage and gear ratios for various combinations of gears. Based upon what they learn about gear train combinations, they design and build a car for speed and for climbing. Kit includes teacher’s manual and materials for 10 groups of 2 to 3 students. Common household tools and classroom supplies are needed but not supplied.



In stock and available to ship.

Grades 6–12. Introduce your students to wheels and axles, then extend that lesson to provide a basic understanding of gear torque, rotation, and direction change. As student groups build a model car, they soon discover the trade-off between force and speed.

Activities in this kit help you teach the following Next Generation Science Standards®:

  • PS2.A Forces and Motion
  • PS3.B Conservation of Energy and Energy Transfer

Kit includes a teacher’s manual with reproducible student guide and the materials for 10 groups of 2 to 3 students. Common household tools and classroom supplies are needed but not supplied.

  • This item is only available from Carolina Biological Supply Company.
  • This item is only available at Carolina.com.
Components Qty Included?
DC Motors 10 Included
Wheels, Gears, and Axles Pack 10 Included
Drinking Straws 12 Included
Cardboard Sheets 10 Included
Single AA Battery Holders 10 Included
Single Pole/Single Throw Knife Switch 10 Included
8-Teeth Pinion Gears 10 Included
10-Teeth Pinion Gears 10 Included
Pipe Cleaners, Assorted Colors 25 Included
Digital Resource Card 1 Included
Teacher's Manual with Reproducible Student Guide 1 Included
Scissors 10 Needed, Not Included
Rulers (metric or standard) 10 Needed, Not Included
Sharpened Pencils 10 Needed, Not Included
Permanent Markers 10 Needed, Not Included
Timers 10 Needed, Not Included
20- to 30-g Weight Sets (made up of washers, coins, masses, etc.) 10 Needed, Not Included
Screwdrivers (slot head/flat head or Phillips) 5 Needed, Not Included
Needle-Nose Pliers 3 Needed, Not Included
Transparent Tape Dispensers with Tape 3 Needed, Not Included
Small Hammers or Mallets 3 Needed, Not Included
Inclined Planes or Pieces of Corrugated Cardboard (at least 50 cm L x 25 cm W) 3 Needed, Not Included
Thread or String Needed, Not Included

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