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100

Who were the first two American astronauts to walk on the moon?

Neil Armstrong and Buzz Aldrin

100

What part of the eye lets light pass through to the lens?

Cornea

100

Which symbol corresponds to Nitrogen?

N

100

What name is given to animals that eat both plants and meat?

omnivores

100

What is it called when gas changes to a liquid?

condensation

200

Who invented the telphone?

Alexander Graham Bell

200

What type of glands help digest food in your mouth?

Salivary glands

200

Which symbol corresponds to Magnesium?

Mg

200

What living but endangered mammals can reach 3.5 meters in height and weight six tons?

elephants

200

What state of matter has a definite shape and volume?

Solid

300

Who was the author of Origin of Species?

Charles Darwin

300

How many bones are in the human body?

206 bones

300

Which symbol corresponds to Hydrogen?

H

300

Whales and caribou leave one region each year and make long journeys to another location. Later in the year they return. These journeys are called annual what?

migrations

300

What is magma that has reached the earth's surface?

Lava

400

Who developed the Theory of Relativity?

Albert Einstein

400

How many muscles in the human body?

About 600 muscles

400

Which symbol corresponds to Sodium?

Na

400

How many bones does a shark have?

none

400

What type of cyclone occurs in the western regions of the Pacific Ocean?

Typhoon

500

Who invented the electric lightbulb and the phonograph?

Thomas Edison

500

"Coronary" indicates what organ?

Heart

500

Which symbol corresponds to Mercury?

Hg

500

What do you call a group of kangaroos?

A troop

500

Which planet orbits the sun at the fastest speed?

Mercury