Physical Science
Life Science
Earth and Space Science
Engineering and Technology
Misc.
100

This compound has a chemical formula H2O.

What is water?

100

A tool that scientists use to see things that are very small that they might not otherwise be able to observe.

What is a microscope?

100

The most abundant gas in Earth's atmosphere.

What is nitrogen?

100

The basic metric unit used to measure mass of objects/

What is a gram?

100

The term used for species of animals or plants that are no longer found living on earth, but once were.

What is extinct?

200

This subatomic particle has a negative charge, allowing atoms to bond together sometimes.

What is an electron?

200

This is the outer part of a plant cell that gives the cell is rigid structure.

What is the cell wall?

200

Water that has vaporized into a gas form. 

What is water vapor?

200

The basic metric unit used to measure volume?

What is a liter?

200

Coal, oil, or natural gas that forms over millions of years from the remains of ancient organisms, often burned to release energy.

What are fossil fuels?

300

This is the measure of the mass of a material in a given volume.

What is density?

300

The organelle within a plant cell that is responsible for photosynthesis.

What is a chloroplast?

300

A scientific instrument that measures air pressure.

What is a barometer?

300

The tool used to measure temperature.

What is a thermometer?

300

The scientific study of heredity.

What is genetics?

400

The name for the process of changing state from liquid to gas.

What is vaporization?

400

These are the factors that control a trait in an organism.

What is a gene?

400

Gases that collect in the atmosphere and absorb heat and reflect it back, keeping it trapped within the atmosphere.

What are greenhouse gases?

400

This can be expressed in degrees Celcius or degrees Fahrenheit.

What is temperature?
400

An answer to a scientific question that is an educated guess, which can be tested to determine if it is correct.

What is a hypothesis?

500

This is the name of the process that happens when a solid changes directly to a gas, without becoming a liquid first.

What is sublimation?

500

This scientist was a famous pioneer in the field of heredity and genetics. 

Who was Mendel?

500

A global change characterized by changing weather patterns and temperature changes on a massive scale, not just in one area.

What is climate change?

500

A tool that scientists use to measure wind speed.

What is an anemometer?

500

The condition in which an organism's internal environment is kept stable in spite of changes in the external environment.

What is homeostasis?

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