Builds 10 motorized propeller cars to modify and test.
All materials, components and full instructions included
Assemble a working propeller to power your model
Discover that air is a substance that can transmit force.
Builds 10 motorized propeller cars to modify and test.
All materials, components and full instructions included
Assemble a working propeller to power your model
Discover that air is a substance that can transmit force.