Part 2 - 4.72 Ocean Water Movements (SOL 4.7)

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What does salinity mean?

Back

Salinity refers to the concentration of salts in water, particularly in ocean water.

Front

Is the salinity of ocean water the same everywhere?

Back

No, the salinity of ocean water is not the same everywhere; it can vary due to factors like evaporation, precipitation, and river inflow.

Front

What are the main components of ocean water?

Back

Ocean water is made up of gases, water, and dissolved solids (like salts).

Front

What is evaporation?

Back

Evaporation is the process by which water changes from a liquid to a gas, usually due to heat.

Front

How does temperature affect evaporation rates?

Back

Warmer temperatures increase the rate of evaporation because heat provides energy for water molecules to escape into the air.

Front

What is an experiment?

Back

An experiment is a scientific procedure undertaken to test a hypothesis by collecting data under controlled conditions.

Front

What is a hypothesis?

Back

A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

Front

What is the purpose of a control in an experiment?

Back

A control is used as a standard for comparison to ensure that the results of the experiment are due to the independent variable.