Show:
Vocabulary Words
Cool Facts
How Bodies Grow & Change
Bones/Muscles
Heart/Lungs
100
adult teeth that take the place of baby teeth
What are permanent teeth?
100
It takes us 43 muscles to frown.
How muscles does it take to frown?
100
shape and size
How does our body change?
100
They are hard.
How do bones feel?
100
It is our heart.
What is the name of the muscle that pumps blood to every part of your body called?
200
a fluid in the mouth that helps break down food
What is saliva?
200
It only takes 17 muscles.
How many muscles does it take to smile?
200
The first year.
During which time does our body weight triple and height will increase by a half?
200
It holds up our body and gives it shape.
What does your skeleton do?
200
Lungs
What is the name of the body part that helps us breathe?
300
how fast or slowly the heart beats
What is heart rate?
300
Joints
What are the places where bones meet called?
300
When a baby is born, its head is 25% of its total body height.
What percent of its total body height is a baby's head at birth?
300
A big round blob on the floor.
What would your body look like if it didn't have a skeleton?
300
It is about the size of my fist.
What is the size of your heart?
400
body parts that help you breathe air
What are lungs?
400
206 bones
About how many bones together form your skeleton?
400
It speeds up again between the ages of 10 and 16.
When does the growth rate speed up again?
400
hip bones, spine, arm bones, leg bones, foot bones, hand bones
Which bones help you move?
400
Your heart pumps the blood to your lungs. It goes back to your heart and then to all parts of your body.
How does blood get to your lungs? Where does it go after that?
500
body parts under the skin that produce movement
What are muscles?
500
About 600 muscles.
About how many muscles are in the human body?
500
An adult might experience weight gain, shrinking, skin wrinkles, and loss of hair and muscle.
What changes might happen when we become adults?
500
One muscle pulls the bone one way, and another muscle pulls it back.
Why do muscles work in pairs to move our bones?
500
The blood picks up the oxygen from the lungs and takes it to all the body parts.
How does oxygen get to all the body parts?