Space
Nature
Water
Technology
Biology
100

What is the closest planet to the sun?

Mercury.

100

Do male or female mosquitoes bite people?

Female.

100

What is the chemical formula of water?

H20

100

What does the abbreviation "www" stand for?

World Wide Web.

100

What is a person who studies biology known as?

A biologist.

200

Does the sun orbit the Earth?

No.

200

True or false? The Dead Sea is 8.6 times more salty than the ocean.

True.

200

True or false? Sound travels faster through water than air?

True.

200

Did the Apple iPhone first become available in 2005, 2006 or 2007?

2007.

200

"Botany" is the study of?

Plants.

300

Earth is located in which galaxy?

The Milky Way Galaxy.

300

How do we call the person who studies physics?

Physicist

300

What is another name for a "tidal wave"?

Tsunami.

300

When was the first search engine invented?

It was invented in 1990.

300

How do we call the study of all animals?

Zoology

400

What is the name of the force holding us to the Earth?

Gravity.

400

What is the smallest mammal in the world?

The (bumblebee) bat

400

What is the longest river on Earth?

The Nile River

400

When was the first smartphone invented?

In 1992.

400

Where is most life on Earth?

In the sea.

500

How do we call the person who studies astronomy?

Astronomer.

500

How do we call the person who studies chemistry?

Chemists 

500

Water freezes at what temperature?

0° Celsius (32° Fahrenheit)

500

Where was the first computer invented?

Manchester

500

Which biologist proposed the theory of evolution by natural selection?

Charles Darwin