Cluster 1: Cells and Systems

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.

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.

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

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.

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

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.

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.

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