Unit 3: Maintaining Homeostasis

Learn how to measure lung capacity and about the factors that can affect our lung capacity in this hands on 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?

Everything and everyone ages. But scientists have made discoveries about our cells and circulatory and immune systems that could potentially one day be used to increase human lifespans.

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.

Microbes are everywhere, even in your digestive tract. Some of these microbes are helpful, and some aren’t.

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.