Unit 3: Maintaining Homeostasis

This brain model helped doctors better explain things to their patients. Learn about this Ingenium artifact and make your own version using 3D printing!

Celiac disease is an autoimmune disorder. Gluten triggers an immune system response, seriously affecting nutrition.

Why does drinking too much alcohol make people feel so bad? Read about four theories.

Make a model of blood and learn about the function of each of the parts that makes up blood.

Teen brain development prepares teens for adulthood, but also affects their emotions.

Temperature is an important part of life on Earth and life in space. This backgrounder explains what temperature is, how it affects people and how it is controlled on the International Space Station.

Spending time outside has important physical and psychological benefits. It can even help you learn better!

Viruses can make you feel awful! This article explains how feeling bad might be your immune system’s way of helping you heal.

Using stethoscopes, doctors can use sound waves to detect various health issues. Learn how this device has evolved since it was invented in 1816!

Get your hands cold for science and explore the topic of sensory adaptation.

Did you know that too much carbon dioxide in the classroom can affect your body, and even your grades?

This backgrounder explains what light is, how it is measured, and how it affects people on Earth and astronauts on board the International Space Station.

Make some fake snot and explore the function of mucus in this fun activity.

What is a reflex? Test your reaction time and find out why reflexes are important in this challenge activity.

Get active in this activity and explore the impact of exercise on your heart rate. Ready, set, GO!