Strand E: Homeostasis

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.

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

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.

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

Snake venom can be dangerous for your circulatory system, nervous system or muscular system. But it can also be very useful in medicine.

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

Explore the concept of persistence of vision in this hands on activity.

How do our bodies get cold? How do sleeping bags keep us warm?

Panic attacks are scary and they upset your body’s chemical equilibrium. Learn what happens to acids & bases in your circulatory system during a panic attack.

The human eye lets us see the world by sending impulses to our nervous system. In many ways, it is very similar to other optical devices, including cameras.

Researchers have found that consuming foods rich in flavanols is linked to more efficient blood flow, which can improve brain function.

Heavy metal is a term for some toxic chemical elements. They can cause problems like bioaccumulation, but are useful in nuclear medicine and medical imaging.