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Christopher saw a model of a skeleton in a science store. He counted the bones in the skeleton. There were 206. Which is NOT something the 206 bones in our skeletons do?

• support the body

• regulate temperature

• protect internal organs

• calcium storage

Jada wants to sign a greeting card for her friend. Which organ sends instructions telling her body how to pick up the pen and sign her name?

• brain

• heart

• sensory organs

• skin

Kidneys are filters. As blood passes through the kidney, waste in the form of urine is left behind. Tubes take the urine from the kidney to a storage bag called the bladder. What can you conclude about blood leaving the kidney?

• It moves to the stomach.

• It has no water left in it.

• It is ready to be used by the body.

• It needs to have urine added to it.

Ydens pitched a baseball. Which of these helped him most in throwing the ball?

• intestines

• reproductive organs

• muscles

• pancreas

Nathan filled a balloon with water to model an organ expanding. He then emptied the water from the balloon to show the organ shrinking. Which organ was he most likely modeling?

• bladder

• liver

• lungs

• pancreas

Which organ is considered the control center of the human body and sends signals throughout the body to make us function?

• skin

• heart

• stomach

• brain

Which organ pumps oxygen throughout the bloodstream in your body?

• lungs

• heart

• brain

• stomach

Which organ acts as a protective coat, keeping fluids and liquids in, and bacteria and germs out?

• liver

• kidney

• pancreas

• skin

Which organ absorbs remaining water from materials that were not digested and turns it into waste?

• stomach

• small intestine

• large intestine

• pancreas

Which organ produces digestive enzymes to help process protein?

• Liver

• Stomach

• Pancreas

• Small intestine