Languages
Social Studies
Chemistry
Biology
Physics
100

Which two languages are spoken most in the United States?

English and Spanish

100

What is the imaginary line that divides the earth into two hemispheres?

the equator

100

What is the chemical formula for water?

H2O

100

What is the "powerhouse of the cell"?

mitochondria

100
Who discovered gravity?

Sir Isaac Newton

200

"mega-" is the Greek prefix that means what?

Large, big

200

Which ocean is the largest on Earth?

the Pacific

200

What element in your blood makes it appear the color red?

iron

200

What shape is DNA?

double helix

200

When you mix all the colors together, what color appears?

white

300

What language is spoken most in Brazil?

Portuguese

300

When was the Declaration of Independence signed? (day, month and year)

July 4, 1776

300

The nucleus of an atoms holds __________ and _______. 

protons and neutrons

300

How many chromosomes are in the human cell?

46

300

Does sound travel faster in the air of in water?

water

400

Khmer people speak what language?

Cambodian

400

What 3 ships did Christopher Columbus use on his first trip to the "Americas"?

The Nina, the Pinta, and the Santa Maria

400

___________ orbit around the nucleus of an atom.

electrons

400

What type of blood cells fight infections and bacteria?

white blood cells

400

What is the word that describes when an object resists changing in motion?

inertia

500

Where does most of the population speak French? Haiti or Barbados?

Haiti

500

Which presidents are on Mount Rushmore?

George Washing, Thomas Jefferson, Theodore Roosevelt, Abraham Lincoln

500

Which letter of the alphabet never appears in the periodic table?

letter J

500

What is the name of the disease where cells grow uncontrollably? 

cancer

500

What unit of measurement is used for power?

a watt