First Semester Test Review--Part 1

Front

What is an independent variable?

Back

An 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 a watershed?

Back

A watershed is an area of land where all the water that falls within it drains into a common outlet, such as a river, lake, or ocean.

Front

What is the scientific method?

Back

The scientific method is a systematic process used by scientists to conduct research, which includes making observations, forming a hypothesis, conducting experiments, and analyzing data.

Front

What is the purpose of performing an experiment in the scientific method?

Back

The purpose of performing an experiment is to test the hypothesis and gather data to support or refute it.

Front

What are wetlands?

Back

Wetlands are areas of land that are saturated with water, either permanently or seasonally, and support aquatic plants and wildlife.

Front

What is the Chesapeake Bay Watershed?

Back

The Chesapeake Bay Watershed is the area of land that drains into the Chesapeake Bay, including parts of six states and the District of Columbia.

Front

What is the role of wetlands in flood reduction?

Back

Wetlands help reduce floods by absorbing excess rainwater and slowly releasing it, which decreases the speed and volume of runoff.

Front

What is the correct order of Virginia rivers that flow into the Chesapeake Bay from north to south?

Back

The correct order is Potomac, Rappahannock, York, James.

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 is the significance of recording and analyzing data in an experiment?

Back

Recording and analyzing data is crucial for drawing conclusions about the hypothesis and understanding the results of the experiment.