Welcome to the LARGEST STEM EXPO in Texas!

We hope you had a great time today at Dallas ISD STEM Expo 2020!

We value your participation and continued passion for all things STEM! If you haven't already, please explore and enjoy all the educational booths the Expo has to offer.

On behalf of DISD's STEM department and Mad Science of DFW, thank you for coming. Have a STEMtastic day!

Mad science booth at a trade show with people around looking at the experiments

Get Connected

Telecommunications-sound of your voice travel through telephone lines.

Sound travels in a wave.Telephone has a small speaker and microphone. Telephones turn your voice into a signal. Telephones and other devices can send messages over a large distance. A network is a set-up that links two or more devices. Cellular towers send and receive radio waves from cellular phones.