The Scientific Method - Experimental Variables.

Front

What is the best conclusion for an experiment where plants are treated with acidic solutions of known pH and a control set with neutral pH 7?

Back

High acidity is harmful to this type of plant.

Front

The graph below shows atmospheric carbon dioxide levels since the year 1880. Which conclusion can be drawn from this graph?

Back

Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.

Front

In an appropriately designed experiment, a scientist is able to test the effect of: a single variable, multiple variables, the hypothesis, scientific observations

Back

a single variable

Front

Which statement best expresses a basic scientific assumption?

Back

If a conclusion is valid, similar investigations by other scientists should result in the same conclusion.

Front

What is the dependent variable in an experiment where two groups are given caffeinated and caffeine-free soda, and their pulse rates are measured?

Back

pulse rate of each group

Front

A series of steps used by scientists to solve a problem or answer a question.

Back

scientific method

Front

Which type of data involves numbers that are obtained by counting or measuring? Options: quantitative, qualitative

Back

quantitative

Front

What type of variable is the fertilizer when experimenting with the growth of a plant?

Back

Independent

Front

Independent variable in the research question: Does the type of gasoline put in a car affect how fast the car can drive?

Back

Type of gasoline

Front

What step does every scientific experiment begin with?

Back

question/problem