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The Human Body
The Human Body
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Fun science facts about the human body for kids.
Flashcards
30 cards
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Practice quiz
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Host live
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Questions
30
Answers
1
Which is the only part of the body that cannot heal itself?
Brain
Heart
Eyes
Teeth
2
How well can your eyes see?
Better than any other living thing
As well as a professional camera
3 times better than the best camera
Not as well as a bat can
3
Which makes the body die faster: lack of food or lack of sleep?
Lack of sleep
Both are the same
Lack of food
You won't die from either one
4
Which do you have the most of in your body?
Fat
Muscles
Skin
Water
5
How fast do message from your brain travel through your body?
As fast as a car on the highway
They only take 1 minute to travel
As fast as you can ride your bike
200 miles per hour
6
How strong are your bones?
About as strong as a tree branch
Twice as strong as a stone boulder
5 times stronger than steel metal
Only as strong as fragile glass
7
How many bacteria are in your mouth?
More than there are people in the world
Less than 50
Bacteria can't survive in your mouth
Almost 1 million
8
You have 206 bones in your body. How many were you born with?
A human's bones don't start growing until after birth
About 50
Only 20 to start
Almost 300
9
Which muscle is the strongest in your body?
Your gluteus maximus (rear)
Your masseter (jaw)
Your biceps (arms)
Your myocardium (heart)
10
What is your brain doing when you're sleeping?
Nothing, it's sleeping too
It's more active than when you are awak
Taking a break and doing it's own thing
Planning the next day
11
True or False: there is acid in your stomach.
True: it's strong enough to dissolve some metals.
True: but it's only as strong as fruit acid.
False: the liquid in your stomach is water.
False: the inside of your stomach is dry.
12
Which can you do faster: detect taste or blink your eyes?
Blink your eyes
Detect taste
Blink your eyes
Detect taste
13
Your tongue has a similar muscle structure to which animal part?
Elephant's trunk
Duck's foot
Beaver's tale
Octopus's tentacle
14
Where are the fastest muscles in your body?
Legs
You accidentally left those one's at home
Eyes
Neck
15
What is the largest organ in your body?
Your stomach
Your brain
Your skin
Your intestines
16
How many types of human blood are there?
Only 1, we all have the same
Countless, everyone's is unique
Over 30
4
17
How many blood vessels do you have?
Only 2
More than we can count
About 100!
Enough to circle the world 4 times
18
How many times does your heart beat in a day?
About 100,000 times
Exactly 4,295 times
Once every minute: almost 1,500 times
No one has counted to tell
19
How much spit does your body produce in one year?
Enough to fill 2 bathtubs
A whole cup
Enough to fill a milk jug
Only a little bit when needed
20
How many muscles do you use to smile?
17 muscles
Only 3
26 less than it takes to frown
Over 100
21
How much fat does the average human body make?
Enough to fit in a small purse
Enough to make 7 bars of soap
Enough to fill a bathtub
Enough to make 10 pans of Jell-O
22
How strong are human teeth?
As strong as a shark's teeth
About medium strength
Very fragile
They're the strongest substance in the world
23
Which organ is the fattest one in your body?
Stomach
Brain
Bladder
Intestines
24
Which muscle is the largest in your body?
Your gluteus maximus
Your stapedius muscle
Your gastrocnemius muscle
Your rectus abdominis
25
Which is true about your lungs?
You only need one lung to survive
The left lung is slightly smaller than the right lung
They are about the size of your fist
Real lungs are yellow
26
How many muscles does it take for you to take one step?
All of your muscles
2
20
200
27
If you opened your lungs and laid them on the floor, how big would they be?
As big as a dinner plate
As big as a tennis court
As big as a desk
As big as a chalkboard
28
Which part of your body never stops growing?
Your whole body
Nose
Hands
Ears
29
How many nerve cells and connections do you have in your body?
You can't count them because they're microscopic
Only one big one connected
More than there are stars in the Milky Way
Thousands
30
Where are your tastebuds?
Nose
Tongue
Esophagus
Throat
