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The scientific method is a process that can help you in all walks of life, not just in a science lab. The basic overview of the method requires you first to identify a problem or truth that you are seeking. It could be something as simple as "does water help plants grow?" After you determine the problem you need to come up with a prediction of what you think the answer to the question is. After that we design an experiment to test this prediction. After we gather all the data from the experiment, we examine the data and draw a conclusion. From there we share and discuss all the data with others.

The series of worksheets you will find in this section will really test your understanding of this concept. You will be put to the test in many diverse scenarios.

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Sequencing the Scientific Method

Provide the letter of the definition that matches the scientific terms below.

Starting the Process

The scientific method is basically an organized way to investigate something that interests you, when you want to find out why something happens the way it does. It all starts with a question.

After scientists complete an experiment they report their conclusions. Each branch of science has a report format for publishing the results of experiments. If you do an experiment for a science fair project you will report your conclusions on a poster board for everyone to see. Y

Understanding the Process

Put the step number next to each step of the scientific method for this problem.

Practice with the Method

In 1872 a wealthy railroad tycoon named Leland Stanford (Stanford University is named after him) made a bet with a friend about a galloping horse. Put the step number next to each step of the scientific method for this problem.

Historic Process of the Method

Gregor Mendel was an Austrian monk who lived from 1822 until 1884. He performed some of the first research ever in heredity. Mendel grew an estimated 28,000 pea plants over eight years. Students can perform an experiment that is similar to one of his famous experiments with pea plants.

Understanding Hypotheses

A hypothesis is testable if you can create a controlled experiment that will give you more information. This hypothesis is testable because you can experiment with two groups of plants of the same species.

Practice with Hypotheses

Write a testable hypothesis for these situations.

Hypothesis Practice

Have another go at these.

Understanding Dependent and Independent Variables

Experiments test the influence of one thing over another. A proper experiment compares two or more things but changes only one variable or factor in the experiment.

Identifying Dependent and Independent Variables

Identify the dependent and independent variables in the following cases.

Practice with Dependent and Independent Variables

Identify the dependent and independent variables in the following cases.

Exercises with Dependent and Independent Variables

Identify the dependent and independent variables in the following cases.

Understanding Control and Experimental Groups

The way to show that a hypothesis is true or false is to design and complete an experiment. S

Identifying Control and Experimental Groups

Identify the control and experimental groups in the following cases.

Practice with Control and Experimental Groups

Identify the control and experimental groups in the following cases.

Exercises with Control and Experimental Groups

The control group does not get the factor being tested. The experimental group does get the factor being tested.

Writing Experiment Conclusions

The conclusion gives a snapshot of what you accomplished so it contains summary information about the experiment as well as the conclusions.

Identifying Experiment Conclusions

Write one sentence to the right of the graph that summarizes what the data shows in each of these experiments.

Practice with Experiment Conclusions

Write one sentence to the right of the graph that summarizes what the data shows in each of these experiments.

Exercises with Experiment Conclusions

Write one sentence to the right of the graph that summarizes what the data shows in each of these experiments.

Exercise Set One

Researchers at Pur-Rite Pharmaceutical Company also developed a new additive for cattle feed that they hope will cause beef cattle to gain weight faster so they can be sent to market sooner.

Exercise Set Two

The executives in charge of advertising for Big Spill brand of paper towels want to advertise that Big Spill towels absorb twice as much water as Good Buy brand.

Exercise Set Three

In a taste test consumers preferred Healthy Meal brand frozen enchilada dinner over the other best-selling brand.

Exercise Set Four

If you make ice cubes from warm water the cubes freeze faster than if you made them from cold water.

Exercise Set Five

The vacuum seal method of storing chicken in the freezer results in less freezer burn than storing the chicken in a freezer storage bag.

Stroop Effect

What happens if you ask someone to name the color of letters printed on a flash card if the letters spell the name of another color?

Scientific Method – Inertia and Momentum

A basic scientific principle is that a body in motion remains in motion unless stopped by an outside force and a body at rest remains at rest unless moved by an outside force.

Effect of Light on Fall Leaf Colors

Do leaves need sunlight in order to change color in the fall?

Water Absorption in Plants and Flowers

How do plants absorb and use water?

Iron and Magnetism

Swish the magnet through the cereal mixture making certain that the magnet reaches the bottom of the bowl because the iron will sink to the bottom.

Oxidation of Cut Apples

A cut apple turns brown after a few minutes. People don’t like to eat brown apple slices but you'd like to serve cut up fruit to your guests who are coming in half an hour.

Oxidation of Cut Apples by Variety

Form a conclusion from what is presented.