Properties of Matter
Force and Motion
Space and Weather
Organisms and Environments
Structure, Function and Survival
100

Matter cannot be created or destroyed during a chemical reaction.


What is the Law of Conservation of Mass?

100

An object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an unbalanced force.

What is Newton’s First Law of Motion?

100

A graph that classifies stars based on temperature and luminosity.


What is the Hertzsprung–Russell (H-R) diagram?

100
An organism that makes its own food using sunlight.

What is a producer?

100

A characteristic that helps an organism survive in its environment.


What is an adaptation?

200

When balancing a chemical equation, this must be equal on both sides.


What is the number of atoms of each element?

200

This quantity increases when net force increases and mass stays the same.


What is acceleration?

200

Hot, bright stars are located in this region of the H-R diagram.


What is the upper left?

200

This shows the transfer of energy from one organism to another in a single pathway.


What is a food chain?

200

The thick fur of a polar bear is an example of this type of adaptation.


What is a structural adaptation?

300

A solid that forms when two clear liquids are mixed.


What is a precipitate?

300

The formula used to calculate acceleration when net force and mass are known.


What is a=F/m?
(or What is Newton’s Second Law?)

300

The day-to-day condition of the atmosphere.


What is weather?

300

Living and nonliving components of an ecosystem interact in this system.


What is an ecosystem?

300

A bird’s hollow bones help it fly because structure supports this.


What is function?

400

If mass appears to decrease during a reaction, it is most likely because the system was not this.


What is closed?

400

When a skater pushes against a wall and rolls backward, the wall pushing back on the skater is explained by this law.

What is Newton’s Third Law of Motion?

400

When a cold air mass pushes under a warm air mass, this type of front forms.


What is a cold front?

400

When a population grows too large for available resources, this limiting factor increases.


What is competition?

400

When organisms with helpful traits survive and reproduce more successfully than others, this process occurs.


What is natural selection?

500

In a balanced chemical equation, atoms are not created or destroyed but are this.


What are rearranged?

500

If two forces of 10 N act in opposite directions on an object, the net force is this.


What is 0 newtons?

500

A star with high temperature but low luminosity would be classified as this.


What is a white dwarf?

500

Energy decreases at each trophic level because most of it is lost as this.


What is heat?

500

An internal structure in plants that transports water from roots to leaves.


What is xylem?

M
e
n
u