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

Human Body Basics

The human body is made up of several systems that work together to perform basic functions.


Some systems of the human body are:

Circulatory system:
Circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away.
Keeps the body's temperature in a safe range.

Digestive system and Excretory system:
System to absorb nutrients and remove waste via the gastrointestinal tract, including the mouth, esophagus, stomach and intestines.
Eliminates waste from the body.

Endocrine system:
Influences the function of the body using hormones.

Immune system and lymphatic system:
Defends the body against pathogens that may harm the body.
The system comprising a network of lymphatic vessels that carry a clear fluid called lymph.

Nervous system:
Collects and processes information from the senses via nerves and the brain and tells the muscles to contract to cause physical actions.