Experimental Design in Biology

Front

How many variables should you change in an experiment?

Back

1

Front

The variable in an experiment deliberately changed by the scientist. The variable being tested.

Back

independent variable

Front

The variable that depends on changes to the independent variable. Also called data.

Back

dependent variable

Front

In Maya's experiment on lima bean seed growth, what variable should be changed? Options: the amount of water, the kind of plant, the type of soil, the amount of sunlight it gets.

Back

the amount of water

Front

The measurable factor in an experiment is known as the: Control, Independent Variable, Constant, Dependent Variable

Back

Dependent Variable

Front

The part(s) of the experiment that remains the same for the control group and experimental group.

Back

constants

Front

Why would a change in the temperature of different beakers of water be problematic when testing the impact of light intensity on the rate of evaporation?

Back

Two independent variables - not valid

Front

The part of the experiment that does not contain the independent variable. Used for comparison.

Back

Control Group

Front

"If the forest is clear-cut (cutting down all the trees in an area of forest), then it will result in drier soils because there will not be any trees to protect the soil from sunlight" is an example of:

Back

a hypothesis