Human Body Trivia Grades 4/5

These tubes are red because they carry blood with oxygen.

You need at least one of these to live.  They filter waste from the blood.

You have a dozen pairs of these bones in your chest that surround the heart. 

One of these grows 6 to 8 inches a year.  What is it?

What tubes are used to pump blood back to the heart?

About 10 quarts of food and liquid are absorbed into the "walls" of these organs each day.

This is your body's largest organ, at about 22 square feet for an average adult.

Which body part has about 4,000 special glands to make wax?

Which body parts inhale and exhale almost 3,000 gallons of air each day?

When air escapes this organ, it's called a "burp."

If you don't drink enough water on a hot day, only a little urine will go to this organ.

This is the body's largest internal organ.  It can weigh up to 4.5 lbs.

This small green sac stores bile from your liver until your body needs it.

The teeth are covered with this tough, protective substance.

The left side of this organ controls the right side of your body, and vice versa.

Dogs have 42 of these and cats have 30.  You'll have 32 when you grow up.

The wind speed is 4 miles per hour when you breathe through this.

Some people call this lump in a person's throat an "Adam's apple."