Experimental Design

Front

What step does every scientific experiment begin with?

Back

question/problem

Front

Nick is conducting a controlled experiment to test whether music helps daisies grow faster. Which group is the control group? Options: the green room, the music, flowerpot 2, flowerpot 1

Back

flowerpot 2

Front

What happens when more than one variable in an experiment is changed at a time?

Back

Cannot tell which change produced the results.

Front

The parts of the experiment that must be kept the same.

Back

Constants

Front

In Maya's experiment on lima bean seeds, what is the independent variable?

Back

the amount of water

Front

How many variables should you change in an experiment?

Back

only 1

Front

The type of variable that responds to the experiment and is what you measure or count to determine if your hypothesis is true.

Back

Dependent

Front

Thomas tests different types of liquids to see which will grow his plants the most. He has water, soda, milk, and no liquid at all. What is the control group?

Back

the one with no liquid

Front

In a baseball throwing investigation, what should be kept constant? Options: height of the players, color of the balls thrown, order in which the players throw, spot from which the players throw.

Back

spot from which the players throw

Front

What is the dependent variable in an experiment where the mass of a ball affects the distance it rolls off a ramp?

Back

distance traveled by the ball