FLOW
FLAME
FORCE
100

What force causes water to flow from a higher place to a lower place?

Gravity

100

What three things are needed for a fire or flame to occur: fuel, oxygen, and what?

Heat

100

What force pulls objects toward the center of the Earth?

Gravity

200

The continuous flow of water within a river or ocean, driven by gravity or wind, is known by this seven-letter term.

Current 

200

In an internal combustion engine, what is burned to produce energy?

Fuel

200

What formula is commonly used to calculate force?

F = ma (force = mass × acceleration)

300

A diagram that graphically represents a step-by-step process or sequence of tasks, often using boxes and arrows to show movement.

Flowchart

300

What color is a typical hot flame often associated with higher temperatures?

Blue

300

What force keeps a vehicle's tires in contact with the road and allows them to move without simply sliding?

Friction

400

Measured during a standard blood pressure test, this rhythmic pumping action creates the flow of blood through the arteries.

Pulse (or heartbeat)

400

What gas from the air is required for combustion?

Oxygen

400

Which of Newton's laws states that every action has an equal and opposite reaction?

Newton's Third Law (For every action, there is an equal and opposite reaction.)

500

Derived from a Greek word meaning "to flow," these mineral formations grow upward from a cave floor due to water dripping from the ceiling.

Stalagmites

500

What engine component ignites the fuel-air mixture in a gasoline engine?

Spark plug  

500

What is the SI (International System of Units) unit of force?

Newton (N)

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