A tentative explanation

The coffee maker produces 12 cups of coffee.

This type of experiment is used only to observe subjects and not interfere at all.

A graph that displays proportions or percentages.

The amount of exercise in the experiment.

The study of life

There are 12,656,783 pieces of sand at the beach.

Testing the effects of caffeine on creativity by having a student write a poem after drinking decaf coffee and after drinking regular coffee, without knowing which is which.

A graph that depicts categorical data.

The quality of sleep in the experiment.

An experiment designed to minimize the effects of variables other than the independent variable.

It's hot outside.

Testing the effects of caffeine on creativity by having a student write a poem both before drinking coffee and after drinking coffee.

The piece of a graph that helps explain what the symbols or line colors mean.

The fact that the same 3 people are being studied throughout the experiment.

A well tested explanation for the natural world

The whale came up to breath 3 times in one hour.

A substance or treatment which is designed to have no therapeutic value.

The axis of a bar graph that shows the dependent variable.

The type of data being collected.

A tentative explanation that states that two things are unrelated.

The book is labeled "Third Edition"

The subset of experimental subjects that don't receive the treatment.

The axis of a line graph that shows the independent variable.

The number of trials being done in the experiment.