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100

The concept of gravity was discovered by which famous physicist?

Sir Isaac Neuton.

100

True or False? Electrons are smaller than atoms.

True.

100

What is the name of the tallest grass on earth?

Bamboo.

100

What is the study of mushrooms called?

 Mycology.

100

Can an airplane go in reverse?

Yes.

200

What is the word "Laser" is an acronym for?

Light Amplification by Stimulated Emission of Radiation.

200

At what temperature are Celsius and Fahrenheit equal?

-40.

200

What is chalk made of?

Limestone.

200

True or False? Chameleons change colors only to blend into their environment.

False.

200

How many bones do sharks have in their bodies?

0.

300

What is the heaviest organ in the human body?

The Liver.

300

Who has more hair follicles, blondes or brunettes?

Blondes.

300

What is the only planet that spins clockwise?

Venus.

300

What was the name of the first man-made satellite launched by the Soviet Union in 1957?

Sputnik 1.

400

What is the largest desert in the world?

Antarctica.

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