What part of the digestive system chews the food?
teeth
What is the liquid in your mouth called?
saliva
What is the liquid is inside your stomach that breaks down food?
acid
Which intestine is the longest?
small intestine
Which intestine is fatter?
large intestine
What is the main purpose of the digestive system?
to break down food into nutrients and energy
What is the large tube that connects the mouth to the stomach called?
esophagus
Which system is responsible for breathing?
respiratory system
Which system is responsible for circulating blood throughout the body?
circulatory system
Which organ pumps blood throughout the body?
heart
What is the main organ used for breathing?
lungs
What gas do we inhale (breath in)?
oxygen
What gas do we exhale (breath out)?
carbon dioxide
