First Semester Review

Front

What is the purpose of cellular respiration?

Back

To release energy from food.

Front

What particle is negatively charged in an atom?

Back

Electron.

Front

What is the difference between observation and inference?

Back

Observation is what you see; inference is a conclusion based on observations.

Front

How can human activity affect natural cycles?

Back

Human activity can affect the water cycle, nitrogen cycle, and carbon cycle.

Front

What is the process where water falls back to the Earth's surface called?

Back

Precipitation.

Front

What is evaporation?

Back

The process of water turning into vapor.

Front

What is condensation?

Back

The process of water vapor cooling and turning back into liquid.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.

Front

What is the nitrogen cycle?

Back

The process by which nitrogen is converted between its various chemical forms.

Front

What is the carbon cycle?

Back

The series of processes by which carbon compounds are interconverted in the environment.