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Human Body
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100
True or false - there are 206 bones in an adult human body and 300 bones in an infants body?
True. Some bones in infants skulls have not yet fused together.
100
How old is our Sun?
5 billion years... we think...
100
Where does sound travel faster; water or air?
Water.
100
Is a tomato a fruit or vegetable?
A fruit
100
An octopus has three hearts
True!
200
True or false- most of the dust in your home is made of human skin?
True - up to 70%!
200
Which is the hottest planet in the solar system?
Venus, surface temperature 460oC
200
Why do bubbles pop?
They get too dry from the surrounding air.
200
What is oldest living thing known on Earth?
A bristlecone pine in California... it's about 4600 years old!
300
Can you lick your elbow?
No. Now be honest, did you try?
300
What is the definition of dust?
A particle small enough to be carried by air currents.
300
Can you fold a piece of paper in half 7 times?
No, at least not using everyday paper.
300
What is the world's tallest grass?
Bamboo. Some species reach up to 39 metres in height.
400
True or false; your body's temperature rises slightly during digestion?
True
400
Who invented the first seismograph? When?
Approximately A.D. 200 in China
400
If you mix all light colors, do you get black, white or a rainbow?
White.
500
Do you have the same number of neck vertebrae as giraffe's?
Yes.
500
True or false - is lightning 3 times hotter than the Sun?
True!