Human Body
Organs & Systems
Germs
Amazing Brain
Fun Facts
100

Do babies have more bones than adults? 

a) Yes, babies have more

b) no, adults have more

c) they have the same number

d) It depends on the baby's height 

A: Yes, Babies have more 

100

What do your kidneys help do?

a) Pump blood

b) digest food

c) control your heartbeat

d) Filter waste/toxins from your blood and excrete urine 


D) Filter waste/toxins from your blood and excrete urine 

100

What does your immune system mainly do?

A. Digest food
B. Pump blood
C. Defend your body against harmful invaders
D. Produce oxygen

C. Defend your body against harmful invaders

100

What organ is responsible for thoughts, memories, and many other functions?

A. Heart
B. Brain
C. Liver
D. Lungs

B. Brain

100

Which travels faster?

A. Light
B. Sound
C. They travel at the same speed
D. It depends on the temperature

A. Light

200

What organ pumps blood around your body? 

Heart 

200

Where does most nutrient absorption from food occur?

a) Stomach

b) small intestine

c) Large intestine

d) esophagus 

b: small intestine

200

Which of these is NOT a type of blood cell?

A. Red blood cell
B. White blood cell
C. Platelet
D. Neuron

D. Neuron

200

TRUE OR FALSE: Your brain itself can feel pain

A. True
B. False

B. False

200

If a person were suddenly exposed to space without a spacesuit, what would be one of the most immediate dangers?

A. They would instantly freeze solid
B. They would immediately turn into ice
C. They would lose consciousness from lack of oxygen
D. Gravity would crush them


C. They would lose consciousness from lack of oxygen

300

Which organ has the amazing ability to regenerate after losing part of itself?

a) brain

b) kidneys

c) lungs

d) Liver 

D: Liver
300

What is the main job of red blood cells?

a) helps you sleep

b) carry oxygen 

c) digest food

d) makes hormones


b: Carry oxygen
300

Why don't antibiotics work against viruses?

A. Viruses are too small
B. Antibiotics only work while you're sleeping
C. Antibiotics target bacteria, not viruses
D. Viruses are immune to all medicine

C. Antibiotics target bacteria, not viruses

300

Why do you automatically pull your hand away from something very hot?

A. Your muscles make their own decisions
B. A reflex pathway responds very quickly
C. Your heart sends the signal
D. Your skin disconnects from your brain

B. A reflex pathway responds very quickly

300

TRUE OR FALSE: You have bacteria living on and inside your body right now.

A. True
B. False


A. True

400

Which organ uses the most energy in the human body?

a) stomach

b) Brain

c) heart

d) lungs

b: Brain 

400

Which body system communicates using electrical signals?

a) Nervous system

b) digestive system

c) respiratory system

d) skeletal system

A: nervous system


400

What is a vaccine essentially helping your immune system learn to recognize?

A. Oxygen
B. Sugar
C. A specific pathogen or part of it
D. Red blood cells


C. A specific pathogen or part of it

400

 What is neuroplasticity?

A. The brain becoming physically larger every day
B. The brain's ability to change and adapt its connections
C. The brain turning into muscle
D. The brain producing new bones

B. The brain's ability to change and adapt its connections

400

What is the largest organ in the human body?

A. Liver
B. Brain
C. Skin
D. Lungs


C. Skin

500

Whats the smallest bone in the human body?

a) Femur

b) Patella

c) Stapes

d) Radius

c: Stapes

500

Which organ system works closely with the respiratory system to deliver oxygen to cells throughout the body?

a) Circulatory system

b) Skeletal system
c) Digestive system
d) Integumentary system


A. Circulatory system

500

What do platelets in your blood help with?

A. Carrying oxygen
B. Fighting every virus
C. Blood clotting
D. Digesting fats

C. Blood clotting

500

Why can't you tickle yourself as easily as someone else can?

A. Your skin becomes numb
B. Your brain predicts your own movements
C. Your hands are less sensitive
D. Your muscles block the sensation

B. Your brain predicts your own movements

500

What sense is the last to go when you die? 

A. Sight

B. Smell

C. Hearing

D. Taste

C. Hearing