Front

Which is an example of a good scientific theory?

Back

Increase fossil fuel usage has increased the carbon dioxide in the air.

Front

What is a risk in developing new cars?

Back

Faster cars could lead to more accidents and deaths.

Front

In an experiment about plant size, you set up 3 plants with the same amount of sunlight and soil, but vary the amount of water given each day. What is the water in this experiment?

Back

independent variable

Front

How does the graph help Abby with her conclusions?

Back

studying the graph gives a visual representation of trends

Front

What most likely caused the increase in population density of grasshoppers in a meadow over one summer?

Back

birds that eat grasshoppers moving out of the area

Front

Which instrument is the best one for measuring the distance between two points? Options: graduated cylinder, meter stick, spring scale, balance

Back

meter stick

Front

In the 1950s, James Watson and Francis Crick built a three-dimensional version of DNA structures. What is the best description of what they built?

Back

a model

Front

Which instrument could help you determine air temperature? Options: measuring tape, meter stick, thermometer, beaker

Back

thermometer

Front

Which example is a system found in nature? Options: train, truck, nitrogen cycle, coal burning power plants

Back

nitrogen cycle

Front

Which example is a system found in nature? Options: train, truck, water cycle, coal burning power plants

Back

water cycle