Extension Activities to Try at Home

Air-Powered Cars

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We design our own air-powered model cars in order to experiment with things (variables) that can change the speed of cars. These variables include the number of wheels, size of wheels, texture of road, amount of air, length of exhaust pipe, and mass.

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How do we build energy-efficient propeller boats?

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Boat Resources

Article: University Students Design Energy-Efficient Boats in Switzerland


How to build model propeller boats out of craft sticks

Boat building video
New lobster boat design




Lemon Batteries

We create our own battery using lemons, zinc-plated nails, copper pennies, and alligator-clip wires. With just a couple of lemons, we can make a calculator function.

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Acid-Base Rockets

Using an acid (vinegar) and a base (baking soda) inserted into a bottle then corked upside down, we create rockets. The vinegar and baking soda produce a gas (carbon dioxide) that pushes out the cork and pushes the bottle up into the sky.

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Cabbage Juice Indicator

When you drip cabbage juice into liquids, it tells you whether something is an acid or a base.

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Resources

1. Indian manufacturers designed air-powered cars

2. Activity: Bridge engineering

3. Activity: Engineering stable buildings

4. STEM Resources

5. Homemade Science Toys

6. STEM Lessons for Grades 3-5

Extra Science and Technology Activities
City Technology Site

Build an Electrical City (Grades 4-5)

Fantastic Elastic Toys (Grade 3)

Build Electrical Cars (Grades 4-5)

Airplane Engineering

Bridge Engineering 1

Bridge Engineering 2

Rubberband Helicopter
Make a Magnetic Car
Make a Windup Car
Windup Car 2
Windup Car 3
Make a Harmonica
PBS Science Activities and Videos for Grades 3-5
STEM Roller Coaster Physics Activity Video
Removing Tarnish from Silver with Baking Soda
Make a Rocket
NASA activities and games
Building Bridges
Craft Stick Harmonica
Engineering Activities

Articles
Groups of Ants Can Behave Like a Solid or Liquid