1195 Search Results for body-systems-need-to-know

Cells

June 12, 2026 1:02 pm

From dandelions to dolphins, all living things are made up of the same itty-bitty things—cells. Discover the parts of a cell, the differences between plant and animal cells, how cells...

Vaccines

June 12, 2026 2:56 pm

Throughout time, scientists have made vaccines to prevent deadly illnesses. Even today, scientists are still studying diseases and working to make new and better vaccines. Explore how vaccines work, how...

My Heart

June 12, 2026 1:58 pm

...through your body to help you keep going. It sends oxygen to the rest of your body and takes out the trash. And that’s just the beginning! Explore what’s inside...

The Human Life Cycle

June 12, 2026 12:43 pm

The human body is a complex set of organs and systems that all work together to sustain life. How does a human body grow and develop over time? Explore the...

My Lungs

June 12, 2026 1:58 pm

What happens when you take a deep breathe? Woosh! Air rushes into your lungs. Your lungs help you get the air you need to live. They work with your heart...

My Bones

June 12, 2026 1:57 pm

What keeps you standing tall? Your bones! But they do more than just stop you from flopping on the floor. Your bones make up the frame of your body and...

My Brain

June 12, 2026 1:57 pm

...it is? It’s your brain! Your busy brain keeps the rest of your body going. It helps you move, talk, and think. It’s at work when you don’t even notice....

Blink

June 12, 2026 12:58 pm

I look around and my eyes do something, even when I don’t realize it. They blink! Why does my body do that? Explore the silly body science of blinks. Learn...

Fart

June 12, 2026 1:22 pm

After a big meal, sometimes my tummy feels funny. And then—pfft! Why does my body do that? Explore the silly body science of farts. Learn how they happen, how often...

Sneeze

June 12, 2026 2:25 pm

Sometimes when I sniff a flower, I get a tickle that just won’t stop. Then, suddenly—achoo! Why does my body do that? Explore the silly body science of sneezes. Learn...

Cough

June 12, 2026 1:07 pm

Sometimes when I’m sick, I feel a tickle in my throat. Then, suddenly—cough! Why does my body do that? Explore the silly body science of coughs. Learn how they happen,...