Scientific Laws and Theories


Scientific Laws and Theories teaches students about the differences between a law and a theory when it comes to science. Students will also learn how to differentiate among facts, beliefs, and hypotheses. They will be able to give examples of each of these five concepts.

There are additional suggestions in the “Options for Lesson” section of the classroom procedure page that you could incorporate into the lesson plan. For example, one idea is to divide students into five groups and assign each group one of the five concepts from the lesson to research further.

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What our Scientific Laws and Theories lesson plan includes

Lesson Objectives and Overview: Scientific Laws and Theories introduces students to difference between a law and a theory in relation to the field of science. Students will discover what a fact is, what a hypothesis is, and what a belief is. They will learn how to differentiate among these five concepts and give examples of each. This lesson is for students in 5th grade and 6th grade.

Classroom Procedure

Every lesson plan provides you with a classroom procedure page that outlines a step-by-step guide to follow. You do not have to follow the guide exactly. The guide helps you organize the lesson and details when to hand out worksheets. It also lists information in the yellow box that you might find useful. You will find the lesson objectives, state standards, and number of class sessions the lesson should take to complete in this area. In addition, it describes the supplies you will need as well as what and how you need to prepare beforehand.

Options for Lesson

You can check out the “Options for Lesson” section of the classroom procedure page for additional suggestions for ideas and activities to incorporate into the lesson. For the activity, students could work alone or in groups instead of in pairs. In addition, you could add a second or third scenario. Another option is to haves students create posters that show the differences among each of the scientific terms. You could also divide students into five groups, assign each group a term, and have the students research it further and find more examples. Another suggestion is to invite a scientist to the class to speak with students and answer their questions. One more options is to use current science content and have students identify facts, beliefs, theories, hypotheses, and laws from the content.

Teacher Notes

The teacher notes page provides an extra paragraph of information to help guide the lesson. It suggests teaching this lesson in conjunction with others that relate to the scientific method, processing skills, and so on. You can use the blank lines to write down any other ideas or thoughts you have about the topic as you prepare.


The Scientific Laws and Theories lesson plan includes three worksheets: an activity worksheet, a practice worksheet, and a homework assignment. Each one will reinforce students’ comprehension of lesson material in different ways and help them demonstrate when they learned. Use the guidelines on the classroom procedure page to determine when to distribute each worksheet to the class.

Worksheet Answer Keys

If you choose to administer the lesson pages to your students via PDF, you will need to save a new file that omits these pages. Otherwise, you can simply print out the applicable pages and keep these as reference for yourself when grading assignments.

Additional information


5th Grade, 6th Grade



State Educational Standards


Lessons are aligned to meet the education objectives and goals of most states. For more information on your state objectives, contact your local Board of Education or Department of Education in your state.

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Scientific Laws and Theories

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