Solar System
Weather
Biology
Earth
Water
100
Have human beings ever set foot on Mars?
No
100
A thermometer is a device used to measure what?
Temperature
100
A person who studies biology is known as a?
Biologist
100
The gemstone ruby is typically what color?
Red
100
True or false? Ice sinks in water
False-It floats
200
What is the name of the force holding us to the Earth?
Gravity
200
Balls or irregular lumps of ice that fall from clouds (often during thunderstorms) are known as what?
Hail stones
200
Botany is the study of?
Plants
200
What is the name of the highest mountain on earth?
Mount Everest
200
The solid state of water is known as what?
Ice
300
What planet is known as the red planet?
Mars
300
Blizzards feature low temperatures, strong winds and heavy _______?
Snow
300
Bacterial infections in humans can be treated with what?
Antibiotics
300
What do you call a person who studies rocks?
A geologist
300
What is the longest river on Earth?
The Nile River
400
What is the hottest planet in our solar system?
Venus
400
What country experiences the most tornadoes?
USA
400
A single piece of coiled DNA is known as a?
Chromosome
400
Which is hotter, the center of the earth or surface of the sun?
The center of the earth
400
Water is made up of what two elements?
Hydrogen and oxygen
500
Who was the first person to walk on the moon?
Neil Armstrong
500
What is the name of a scientist who studies weather?
A meteorologist
500
Which famous scientist introduced the idea of natural selection?
Charles Darwin
500
Outside of Antarctica, what is the largest desert in the world?
The Sahara Desert in Africa
500
Water freezes at what temperature?
0 °C (32 °F)
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