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Earth Science
Physical Science
Space Science
Life Science
General Science
100
The process in which water changes state from liquid to gas.
What is evaporation?
100
The ability to do work or cause change.
What is energy?
100

A group of stars that form a pattern.

What is a constellation?

100

The process plants use to make food.

What is photosynthesis?

100
The three main types of matter.
What are solids, liquids and gasses?
200

The phrase for the weather and temperature over a long period of time.

What is climate?

200
A type of matter made of a combination of elements.
What is a compound?
200
A natural satellite that orbits a planet.
What is a moon?
200
A way of showing the amount of energy available at each stage of a food chain. Decomposers are not shown.
What is an energy pyramid?
200

The preservation or efficient use of resources, or the conservation of various quantities under physical laws.

What is conservation?

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
Day and night are caused by Earth's rotation along this.
What is Earth's axis?
300

The natural environment in which a particular species live. 

What is a habitat?

300

A gravitationally bound system of non-stellar objects in or out of orbit around a star or star system.

What is a Planetary System?

400
This is the information collected during a scientific investigation.
What is evidence?
400
The energy that an object has because of its position or location.
What is potential energy?
400

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

What is a galaxy?

400

The surroundings of a physical system that may interact with the system by exchanging mass, energy or other properties.

What is the natural environment?

400
A group of organs that work together to make this.
What is an organ system?
500
Any condition in an experiment that can be changed.
What is a variable?
500
The buildup of electric charges on an object.
What is static electricity?
500
This is the shape of the planets' orbits.
What is an ellipse? (What is elliptical?)
500

a social unit with commonality (such as norms, religion, values, customs, identities and favorite programming languages).

What is a community?

500
This is a mixture that has the same composition throughout.
What is a solution?