Food’s Journey
Food usually enters your body through this opening.
The mouth.
These two organs fill with air when you breathe in.
The lungs.
This organ pumps blood around your body.
The heart.
These hard parts give your body support.
Bones
True or false: Your heart stops working while you sleep.
False
Your teeth help digestion by doing this to food.
Chewing or breaking it into smaller pieces.
Name one place where air can enter your body.
The nose or mouth
You can feel your heartbeat at your wrist or neck by checking this.
Your pulse.
These body parts work with bones to help you move.
Muscles
Which two systems work together when your lungs bring in oxygen and your blood carries it around your body?
Respiratory and circulatory.
After you swallow, food travels down a tube toward this organ.
The stomach.
Your body takes in this gas from the air.
Oxygen
Blood travels around your body through these tube-like structures.
Blood vessels
A place where two bones meet is called this.
A joint.
Which two systems help you get nutrients from lunch and carry them around your body?
Digestive and circulatory.
Your body takes useful nutrients from food mainly as it passes through these organs.
The intestines, especially the small intestine.
Your body gets rid of this gas when you breathe out.
Carbon Dioxide.
Name one thing blood carries to different parts of your body.
Oxygen or nutrients.
Give one example of something your skeleton protects.
The brain, heart, or lungs.
You kick a soccer ball. Name two body parts that work together to move your leg.
Muscles and bones. May also include joints
Why does your body need to digest food instead of leaving it in large pieces?
To break food down so the body can absorb and use its nutrients.
What usually happens to your breathing when you run, and why?
It gets faster because your working body needs more oxygen and releases more carbon dioxide.
Why might your heart beat faster when you play tag?
Your working muscles need more oxygen and nutrients, so the heart pumps blood faster.
When you bend your arm at the elbow, what are the muscles and joint helping you do?
Move the bones of your arm. Accept “bend my arm” if the student can explain the connection.
You eat lunch, then run across the playground. Name three body systems helping you and tell what one of them does.
Possible answer: The digestive system gets nutrients from food; the respiratory system brings in oxygen; the circulatory system carries oxygen and nutrients; the musculo-skeletal system helps the body move. Accept any three with one correct function