science demonstrations

Homemade speaker made with a toy motor /// Homemade Science with Bruce Yeany

Homemade speaker made with a toy motor /// Homemade Science with Bruce Yeany

This homemade speaker uses a toy motor insteadof a coil of wire and a magnet.The amplifier wires are simply attached to a toy motor to make it vibrate. Use it to make a conductor speaker that only you can hear or attach it to a paper plate to make a simple speaker that will amplify the sound.
Solar Motor Without Electrical Parts - Free energy motor - Homemade Science

Solar Motor Without Electrical Parts - Free energy motor - Homemade Science

These devices are sometimes referred to as solar motors or thermal motors, or even thermal retraction motors. Sunlight hitting the strips is converted into thermal energy (heat) which then causes the rotor to turn without any electrical or other mechanical parts.
Falling Cones Activity to Understand Aerodynamics -Homemade science

Falling Cones Activity to Understand Aerodynamics -Homemade science

This inquiry activity investigates factors that make an object fall faster or slower and is an easy one for students to design, set up,and test.It does not require any special equipment and is a good way to use up and recycle used paper.
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