P128 - Light bulb brightness
An activity where children systematically add batteries to a circuit to see how it affects brightness.
more..
P127 - How changing the voltage affects the volume of buzzer
An activity where children systematically add batteries to a circuit to see how it affects sound.
more..
P217 - How does distance affect the volume of sound?
An activity where children systematically increase the distance from a sound source to see how it affects volume.
more..
P170 Making a temporary compass
An activity where children use a magnet and everyday items to a make a compass.
more..
