Dr. Paula Littlejohn (she/her)
Postdoctoral Research Fellow
I research problems that affect peoples’ health, specifically in children.
Luke Humphries
Director, Process Development
I lead teams of scientists to discover and develop the best ways of making drug molecules for clinical trials.
Introduction to Homeostasis and Regulation
Learn about homeostasis and how the body regulates temperature, blood pressure, blood pH and blood sugar.
What’s Special About the New COVID-19 Vaccines?
Learn about viruses, vaccines and why the new COVID-19 vaccines are innovative.
Organ Transplantation
Learn about organ transplantation - what it is, how it can save lives, how your immune system responds, and how the matching process works.
Osmosis and Its Role in Human Biology and Health
Learn how and where osmosis takes place in the digestive system and excretory system and the role of osmosis in kidney dialysis.
The Science Behind Calories and Nutrition Facts Labels
Find out how scientists figure out the information on food nutrition labels and why that information can help to keep you healthy.
Why Do Apples Turn Brown After You Cut Them?
Has your fresh juicy apple turned an unsightly brown? Learn about the redox reaction behind the transformation.
How Sugar Affects the Brain
Consuming sugary foods and drinks activates your brain’s reward system - the same system that can cause addiction.
Celiac Disease: When You Really Need to Stay Gluten-Free
Celiac disease is an autoimmune disorder. Gluten triggers an immune system response, seriously affecting nutrition.
Why Don't Fish Freeze in Cold Arctic Waters?
Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.
Why Do People Get Hangovers?
Why does drinking too much alcohol make people feel so bad? Read about four theories.
Why do oil and water not mix?
What chemistry determines how oil and water behave when mixed? Explore the mixing of oil and water and the density of liquids in this activity.
Why are peas and corn classed as starches on food guides?
Learn how test foods for starch.
What is the best way to clean up an oil spill?
Learn about the properties of materials and the challenges of cleaning up an oil spill in this activity.