Biology & Life Science
Earth & Space Science
Chemistry & Physics
100

This organ is the largest one in the human body.

Skin

100

Often called the Red Planet?

Mars.

100

This gas makes up the majority of earths modern Atomsphere 

Nitrogen

200

Known as the powerhouse of the cell, this organelle generates chemical energy.

Mitochondrion 

200

This scale is used by scientists to measure the magnitude of earthquakes

Richter Scale

200

Newton's first law of motion.

Newton's first law of motion states that an object at rest stays at rest, and an object in motion stays in motion at a constant speed and in a straight line, unless an outside force acts on it.

300

This process allows plants to convert sunlight into usable energy.

photosynthesis

300

This is the largest ocean on the surface of earth?

The Pacific Ocean

300

Newton's second law of motion  

Newton's second law of motion states that an object's acceleration depends on two things: the net force acting upon it and the object's mass. It is famously summed up by the equation Force = mass × acceleration meaning heavier objects need more force to move, and more force causes a faster speed change.

400

Why do we need water?

It makes up most of our body weight and keeps all of our organs and systems working properly

400

This black volcanic glass forms when lava cools very rapidly?

Obsidian

400

Newton's third law of motion.

Newton's third law of motion states that for every action, there is an equal and opposite reaction. This means that when two objects interact, they apply forces on each other that are equal in size and opposite in direction.

500

What is considered the basic unit of life?

The Cell

500

How does minerals from by evaporation?

When water evaporates the minerals are left behind. Then they form crystal structures.

500

This state of matter has a definite volume but no definite shape

Liquid