color by number
skeletal system
name:
date:
per:
directions: answer each question by circling the correct choice. after you have finished all questions, color the picture on the back using the corresponding color choice.

1. the function of the skeletal system is…
choice a: protection & movement white
choice b: protection, movement, & blood cell production yellow
choice c: protection only sky blue

2. the skeletal system includes…
choice a: bones green
choice b: cartilage sky blue
choice c: both a & b pink

3. this body part has the most number of bones…
choice a: the feet blue
choice b: the hands black
choice c: the spine purple

4. humans have ____ bones.
choice a: 122 purple
choice b: 206 blue
choice c: 302 black

5. wrist bones are called…
choice a: carpals gray
choice b: tarsals yellow
choice c: metatarsals purple

6. this bone protects the brain…
choice a: clavicle orange
choice b: cranium sky blue
choice c: sternum black

7. this protects the heart and lungs…
choice a: rib cage black
choice b: sacrum red
choice c: sternum green

8. the smallest bone in your body called the stapes is found here…
choice a: nose black
choice b: the ear brown
choice c: the knee gray

9. the longest bone in the body…
choice a: vertebra white
choice b: humerus blue
choice c: femur dark green

10. the place where two bones meet…
choice a: ligament light purple
choice b: joint white
choice c: tendon yellow

11. which of the following is true?
choice a: babies have more bones than adults. sky blue
choice b: all ribs are attached to the sternum. red
choice c: a ligament connects muscle to bones. green

12. which of the following is false?
choice a: the femur is the strongest bone in the body. black
choice b: bones are alive. gray
choice c: bones are not alive. blue

Question

color by number
skeletal system
name:
date:
per:
directions: answer each question by circling the correct choice. after you have finished all questions, color the picture on the back using the corresponding color choice.

1. the function of the skeletal system is…
choice a: protection & movement white
choice b: protection, movement, & blood cell production yellow
choice c: protection only sky blue

2. the skeletal system includes…
choice a: bones green
choice b: cartilage sky blue
choice c: both a & b pink

3. this body part has the most number of bones…
choice a: the feet blue
choice b: the hands black
choice c: the spine purple

4. humans have ____ bones.
choice a: 122 purple
choice b: 206 blue
choice c: 302 black

5. wrist bones are called…
choice a: carpals gray
choice b: tarsals yellow
choice c: metatarsals purple

6. this bone protects the brain…
choice a: clavicle orange
choice b: cranium sky blue
choice c: sternum black

7. this protects the heart and lungs…
choice a: rib cage black
choice b: sacrum red
choice c: sternum green

8. the smallest bone in your body called the stapes is found here…
choice a: nose black
choice b: the ear brown
choice c: the knee gray

9. the longest bone in the body…
choice a: vertebra white
choice b: humerus blue
choice c: femur dark green

10. the place where two bones meet…
choice a: ligament light purple
choice b: joint white
choice c: tendon yellow

11. which of the following is true?
choice a: babies have more bones than adults. sky blue
choice b: all ribs are attached to the sternum. red
choice c: a ligament connects muscle to bones. green

12. which of the following is false?
choice a: the femur is the strongest bone in the body. black
choice b: bones are alive. gray
choice c: bones are not alive. blue

Accepted Answer

### Question 1
# Answer:
B. protection, movement, & blood cell production [yellow]
# Brief Explanations:
The skeletal system has functions of protecting organs (e.g., ribcage protects heart/lungs), enabling movement (with muscles), and producing blood cells (in bone marrow). So Choice B is correct as it includes all key functions, while A misses blood cell production and C is too limited.

### Question 2
# Answer:
C. both A & B [pink]
# Brief Explanations:
The skeletal system includes bones (structural framework) and cartilage (e.g., in joints, nose), so both A (bones) and B (cartilage) are part of it. Thus Choice C is correct.

### Question 3
# Answer:
A. the feet [blue]
# Brief Explanations:
The feet have many small bones (tarsals, metatarsals, phalanges). The hands also have many, but the feet typically have more bones than the spine (which has vertebrae, sacrum, etc.). So Choice A (the feet) has the most bones.

### Question 4
# Answer:
B. 206 [blue]
# Brief Explanations:
Adult humans typically have 206 bones. 122 is too few, 302 is too many (babies have more initially but fuse to 206 as adults). So Choice B (206) is correct.

### Question 5
# Answer:
A. carpals [gray]
# Brief Explanations:
Wrist bones are called carpals (tarsals are ankle bones, metatarsals are foot bones). So Choice A (carpals) is correct.

### Question 6
# Answer:
B. cranium [sky blue]
# Brief Explanations:
The cranium (skull) protects the brain. The clavicle (collarbone) doesn't protect the brain, and the sternum protects the heart/lungs. So Choice B (cranium) is correct.

### Question 7
# Answer:
A. rib cage [black]
# Brief Explanations:
The rib cage (ribs + sternum) protects the heart and lungs. The sacrum is part of the spine, and the sternum is part of the rib cage but the rib cage as a whole is the structure protecting heart/lungs. So Choice A (rib cage) is correct.

### Question 8
# Answer:
B. the ear [brown]
# Brief Explanations:
The stapes (smallest bone) is in the middle ear. The nose has no stapes, and the knee is a joint with larger bones. So Choice B (the ear) is correct.

### Question 9
# Answer:
C. femur [dark green]
# Brief Explanations:
The femur (thigh bone) is the longest bone in the body. The vertebra is part of the spine, the humerus is the upper arm bone (shorter than femur). So Choice C (femur) is correct.

### Question 10
# Answer:
B. joint [white]
# Brief Explanations:
The place where two bones meet is a joint (e.g., knee, elbow). Ligaments connect bones to bones (not the meeting place), tendons connect muscle to bone. So Choice B (joint) is correct.

### Question 11
# Answer:
A. Babies have more bones than adults. [sky blue]
# Brief Explanations:
Babies have more bones (around 300) because some bones are still separate (e.g., skull bones, vertebrae) and fuse as they grow, resulting in 206 as adults. Not all ribs attach to the sternum (floating ribs don't), and ligaments connect bone to bone (tendons connect muscle to bone). So Choice A is true.

### Question 12
# Answer:
C. Bones are not alive. [blue]
# Brief Explanations:
Bones are alive (they have cells, blood vessels, and grow/repair). The femur is the strongest bone, and bones are alive, so "Bones are not alive" (Choice C) is false.

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