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1000 Science Fair Projects with Complete Instructions

Radio Waves

Radio waves are signals that travel through the air to carry sound and data between devices.

Think of it this way

A TV remote sends a hidden beam across the room to the TV. You cannot see it, but the TV picks it up and reacts. Radio waves work the same way, just over much more space. A tower sends out waves, and your car radio picks them up.

Explaining radio waves by grade level

Turn on a radio in your house. The music plays even though the station is far away. The station sends out waves you cannot see or feel. Your radio catches those waves and turns them back into sound you can hear.

Projects that explore radio waves

Radio Wave Interference Through Common Materials

Radio waves carry data through the air from a transmitter to a receiver. A 27 MHz remote control sends signals across a gymnasium to drive a car on the far side. The transmitter sits outside the gymnasium door, and the car responds on the court. This shows that radio waves travel through open air to carry commands between devices.

Medium