Celiac Disease: When You Really Need to Stay Gluten-Free
STEM Explained
Celiac disease is an autoimmune disorder. Gluten triggers an immune system response, seriously affecting nutrition.
Why a Trip to Outer Space Could Be Bad for Your Bones
STEM Explained
Astronauts can experience bone loss in space. To understand why, you need to know a bit about how bones are formed and maintained in your body.
Why Do People Get Hangovers?
STEM Explained
Why does drinking too much alcohol make people feel so bad? Read about four theories.
What is Sound and How do we Hear it?
Backgrounders
Learn how sound travels in waves and how it is measured in this backgrounder.
Understanding the Teen Brain
STEM Explained
Teen brain development prepares teens for adulthood, but also affects their emotions.
The Surprising Reason You Feel Awful When You're Sick
STEM Explained
Viruses can make you feel awful! This article explains how feeling bad might be your immune system’s way of helping you heal.
Spaceflight and Bone Loss
STEM Explained
Astronauts can experience bone loss in space. To understand why, you need to know a bit about how bones are formed and maintained in your body.
Stethoscope Replica
Interactives
Using stethoscopes, doctors can use sound waves to detect various health issues. Learn how this device has evolved since it was invented in 1816!
Senses
Picture Collections
5 images representing the senses of hearing, seeing, smelling, tasting and touching
Meiosis Mistakes
STEM Explained
Errors during meiosis can alter the number of chromosomes in cells and lead to genetic disorders.
Is There Too Much Carbon Dioxide in Your Classroom?
STEM Explained
Did you know that too much carbon dioxide in the classroom can affect your body, and even your grades?
How fast can you react?
Hands-on Activities
What is a reflex? Test your reaction time and find out why reflexes are important in this challenge activity.
How fast does a heart pump blood?
Hands-on Activities
Get active in this activity and explore the impact of exercise on your heart rate. Ready, set, GO!
How much air do I breathe in?
Hands-on Activities
Learn how to measure lung capacity and about the factors that can affect our lung capacity in this hands on activity.
How Can Your Doctor Use the Data in You?
STEM Explained
Scientists are training artificial intelligence to diagnose injuries using x-rays and other medical imagery of you (and millions of others). What improvements and other changes might this bring to the health care system?