Earth Science
Physical Science
Space Science
Life Science
100
The process in which water changes state from liquid to gas.
What is evaporation?
100

The three main types of matter.

What are solids, liquids and gasses?

100

A group of stars that form a pattern.

What is a constellation?

100

The process plants use to make food.

What is photosynthesis?

200

This is the largest and deepest of the world ocean basins.

What is the Pacific Ocean?
200

This is the only metal that is liquid at room temperature.

What is mercury?

200

A gravitationally bound system of stars, stellar remnants, interstellar gas and dust elements and dark matter.

What is a galaxy?

200

This part of the cell has the genetic material and is often called the "brain of the cell"

What is the nucleus?

300
The process that occurs when water vapor in the air forms droplets on the side of a glass of ice water.
What is condensation?
300
These can make a moving object speed up, slow down, or change direction. They have both magnitude and direction.
What are forces?
300

This manned space program put men on the moon for the first time

What is Apollo?

300

This organ filters 50 gallons of blood every day.

What is a kidney?

400

This is the name of the layer of the atmosphere closest to the surface of the Earth.

Troposphere

400

This process is when material goes from a solid to a gas, without becoming a liquid

What is sublimation? 
400

This planet has the hottest surface temperature in our solar system

What is Venus?

400

This is the hardest substance in the human body

What is tooth enamel?

500

Most of this volcano is underwater, and when measured from its underwater base, it is the tallest mountain in the world.

What is Mauna Kea?

500

This physicists is perhaps more famous for his cat than his equations. 

Who is Schrödinger?

500

This is the closest star to Earth, other than the sun.

What is Proxima Centauri ?

500

This animal has the heaviest brain

What is a sperm whale?

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