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Strand D: Nutritional science

Dr. Paula Littlejohn headshot

Dr. Paula Littlejohn (she/her)

Postdoctoral Research Fellow

I research problems that affect peoples’ health, specifically in children.
Luke Humphries working with biological sample in his lab.

Luke Humphries

Director, Process Development

I lead teams of scientists to discover and develop the best ways of making drug molecules for clinical trials.
3D rendering of the human digestive system

How Animals Digest Their Food

Learn about how different animals digest their foods and the organs of their digestive systems.

Medical staff distributing COVID-19 vaccines

What’s Special About the New COVID-19 Vaccines?

Learn about viruses, vaccines and why the new COVID-19 vaccines are innovative.

Human kidney cross-section

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.

Nutrition label on the side of a pop can

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.

Browning apple

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.

Looking at a donut and a brain through a magnifying glass

How Sugar Affects the Brain

Consuming sugary foods and drinks activates your brain’s reward system - the same system that can cause addiction.

Bread and wheat with a warning sign

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.

Arctic pack ice

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 oil and water not mix?

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.

The planet Mars

What is your weight on another planet?

Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.

What is the best way to clean up an oil spill?

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.

Crispy fried crickets © phuketisland, iStockphoto

Should We Eat Bugs?

What's tasty, abundant and high in protein and vitamins? Bugs! Bugs feed about 2 billion people each day. They also hold promise for food security and sustainability.