Big Idea: Life processes are performed at the cellular level.

Learn about the important plant functions of photosynthesis, respiration and transpiration

It took several scientists building on each other’s discoveries to come up with Cell Theory - one of the cornerstones of biology.

Plants need to exchange gases and water with their environment as part of photosynthesis. Some plant cells have evolved specifically for this purpose.

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

What are your teeth made up of? What chemistry is at work in your mouth? Why do some people get cavities even if they brush regularly?

How do the green leaves of summer change to vibrant colours in fall? Explore plant pigments in this chromatography activity.

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

When you cut your finger, your immune system kicks in to protect you from pathogens.

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

Learn about the measles virus, its impact and vaccination for prevention of the disease.

In April 2016, Let’s Talk Science volunteer Daniel Tarade donated stem cells to help a person who needed a stem cell transplant to survive. Learn what stem cells are, how and why people donate, and what Daniel’s experience was like.

Many doctors prescribe antibiotics to cure infections. But should they be prescribing viruses instead?