Biology
Chemistry
Math & Physics
Earth & Space
General
100

This is the powerhouse of the cell

Mitochondria

100

This molecule is composed of one carbon atom and two oxygen atoms

Carbon dioxide

100

A term that refers to the middle value of a data set

Median

100

The third planet from the sun

Earth

100

Diamonds are composed of this element

Carbon

200

The largest organ in the human body

Skin

200

The pH value of a neutral solution

7

200

A type of energy that is a direct result of motion

Kinetic energy

200

The planet with the shortest orbital time

Mercury

200

The largest mammal

Blue whale

300

These long molecules store genetic information 

DNA

300

A chemical bond formed when two atoms share pairs of electrons

Covalent bond

300

A term that refers to the time it takes for half of a substance to decay

Half-life

300

The tallest volcano in the solar system

Olympus Mons

300
The most abundant element in the universe

Hydrogen

400

This protein, found in red blood cells, allows for oxygen to be transported

Hemoglobin

400

On the periodic table, this set of elements separates the metals and nonmetals

Metalloids

400

The instantaneous rate of change of a function is also known as

Derivative

400

The Richter scale is a measure of intensity for this phenomenon

Earthquakes

400

The first vaccine was developed to treat this disease

Smallpox

500

These type of plants produce flowers and fruits that contain seeds

Angiosperms

500

The most reactive element on the periodic table

Fluorine

500

Solve the following: i4 + i2

0

500

The most abundant element in the Earth's crust

Oxygen

500

In the United States, this project was the first to develop nuclear fission

The Manhattan Project