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BONE FACTS TRUE/FALSE QUIZ

Choose your answer and you'll know immediately if your answer is right or wrong. Good luck!

1. The smallest bones in your body are found in your ear.

2. The longest bone in your body is the humerus.

3. Red blood cells are the only blood cells produced in the bone marrow of your bones.

4. Over half the bones in your body are located in your backbone.

5. There is only one bone in your body that is not connected to another bone.

6. Your growth is likely to stop by the age of 16 if you are a girl and 18 if you are a boy.

7. Bone is the hardest substance in your body.

8. You don't need a cast for a broken rib.

9. Your bones are alive.

10. Most of your bone is made of water.

11. About 50% of the animals on earth do not have a backbone or spine.

12. You have fewer bones when you are born than when you die.

13. One out of 20 people in the world (1/20) has an extra rib.

14. The human skeleton makes up half of your body's weight.

15. The more you exercise your muscles, the stronger your bones become.

16. Bone can stand stresses of up to 50 pounds per square inch.

17. Your "funny bone" is a bone located at your elbow.

18. A giraffe has ten more bones in its neck than you do.

19. Humans have about 650 muscles - about three for every bone in the body.

20. The only time you can truly "sit up straight" is when you are a baby.

21. Inside the body, bones are constantly breaking down and rebuilding themselves.

22. Horns and antlers are two different names for the same thing.

23. Double-jointedness is when someone has two bones that work together to allow them to contort (bend) a joint in unusual ways.

24. You have eight bones in your wrist.

25. Your skull is one big bone.

26. Ivory is made of hair and is a material used in jewelry easily found in stores.

27. There's enough room in your hollow skull to hold the same amount of liquid found in four cans of soda.

28. Elderly people sometimes develop a curve in their spines. Right-handed people curve to the right and left-handed people curve left.

29. Muscles and skeletons together are sometimes called the "musculoskeletal system".

30. Humans are the only known animals to show fear when they stumble upon bones of their own kind.

31. People in Madagascar have a ritual called "turning of the bones" where they dig up the bones of the dead, entertain them and then rebury them with a new set of gifts.

32. Round (sesamoid) bones (such as the patella) are called "sesamoid bones" because they resemble sesame seeds.

33. Horses walk on their toes.

34. The skeleton within your body is called the "exoskeleton".

35. All twelve pairs of ribs are anchored to the backbone.

36. You have two sets of ribs (total of four) that are not attached to the front of the chest.

37. The cervical vertebrae are found in the lower back.

38. Bones are made from some of the same minerals found in rocks.

39. When the body feels in danger of hunger, it can draw food from the yellow marrow found in some bones.

40. You are taller in the evening than you are in the morning.

Text provided by Children's Museum of Indianapolis

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