Nature
Earth/Space
Physical
Life
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100

Data collected through scientific investigations such as observational studies or controlled experiments.

What is empirical evidence?

100
A collection of billions of stars found in the Universe. 

What is a galaxy?

100

States that mass/matter cannot be created or destroyed, only transformed from one form to another. 

What is the Law of Conservation of Mass/Matter?

100

This is the basic unit of life. 

What is a cell?

100

The name of the solar system model showing the planets revolving around a central sun in concentric circles. 

What is the heliocentric model?

100

This equation is used to calculate an object's density. 

What is D=M/V?

200

This variable in an experiment is changed on purpose by the investigating scientist. It is also graphed on the X axis when data is analyzed.

What is the independent variable?

200

Predicted by the color of a star. 

What is temperature?

200

The element with 54 protons in its nucleus. 

What is xenon?

200

This is the organelle in which cellular respiration takes place. 

What is the mitochondria?

200

Increasing this will increase the rate of a chemical reaction. 

What is temperature?

200

This term used for describing moon phases means mostly full of light. 

What is gibbous?

300

This variable in an experiment is measured by the investigating scientist. It is graphed on the Y axis when data is analyzed.

What is the dependent variable?

300

How bright a star appears from Earth's perspective based on the star's distance from the Earth. 

What is apparent magnitude?

300

The process that occurs when a new substance is formed that has entirely new properties than what was started with. 

What is a chemical change?
300

The process that breaks down food to provide cells energy and releases carbon dioxide. 

What is cellular respiration?

300
The amount of light energy given off by a star. 

What is absolute brightness (luminosity)?

300

During this lunar phase a lunar eclipse may occur. 

What is full moon? 

400

The materials that need to remain the same across all test groups in an experiment. 

What are constants?

400

The picture below shows this event. 

What is a solar eclipse?

400

 Baking soda (NaHCO₃) is an example of this pure substance. 

What is a compound?

400

This is the movement of Carbon throughout the planet. 

What is the carbon cycle?

400

This states that the gravitational attraction between objects (such as in our Solar System) depends on their distances and their masses. 

What is the Law of Universal Gravitation?

400

Fruit punch is an example of this type of mixture. 

What is a homogeneous mixture?

500

The group that does not receive the independent variable and is used as a base for comparison. 

What is the control group?

500

The picture below shows this tidal event. 

What is neap tide?

500

Pictured below is solid carbon dioxide. If this melts to a liquid, that is an example this type of change.

What is a physical change?

500

This process uses carbon dioxide, water and light to create glucose and oxygen.

What is photosynthesis?

500

This process uses oxygen and glucose to create carbon dioxide, energy, and water.

What is cellular respiration?

500

This is the reason that eclipses do not happen every month. 

What is the moon's tilted orbit?

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