Combing videos from my YouTube channel, Step-by-Step Science, with results oriented teaching and learning resources. A Win-Win for teachers and their students. Teaching physics, chemistry and math in the United States & Germany for over 20 years.
My YouTube channel, Step-by-Step Science, has hundreds of excellent physics, chemistry and math videos. Links to relevant YouTube videos are given on each worksheet.

Combing videos from my YouTube channel, Step-by-Step Science, with results oriented teaching and learning resources. A Win-Win for teachers and their students. Teaching physics, chemistry and math in the United States & Germany for over 20 years.
My YouTube channel, Step-by-Step Science, has hundreds of excellent physics, chemistry and math videos. Links to relevant YouTube videos are given on each worksheet.

In this guided inquiry two part lab your students will investigate how an image is formed by four different optical instruments: a convex lens, a concave lens, a convex mirror and a concave mirror.
In Part 1 students will investigate (1) how the characteristics of the image change as the object is brought closer to each of the lenses and mirrors, (2) the similarities and differences in image formation for each of the lenses and mirrors and (3) the meaning of the points F and 2F for the convex lenses and concave mirrors.
In Part 2 students will draw the ray diagrams for each of the lenses and mirrors and take a more detailed look at the image characteristics for each object location. By the end of Part 2, if they are given the object location they will be able to state (1) the image location relative to points F and 2F, (2) the size of the image relative to the object size, (3) the image orientation and (4) the image type.
For this online lab activity your students will use one of the simulations from PhET Interactive Simulations. The simulation is called Geometric Optics (HTML5). The link for the simulation can be found inside the resource.
PhET Interactive Simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website: PhET Interactive Simulations. This PhET online simulation can be done in the classroom or during distance learning.
This product includes:
(1) The lab activity worksheets.
(2) An answer key for the worksheets.

This product contains two separate physics lab activities, Resistance and Ohm’s Law, to be completed with two different PhET Interactive Simulations. The lab activities focus on the qualitative relationships governing two physical phenomena by using visual representations to show the factors that affect the resistance and current. A minimum amount of math is needed to answer the included questions. Your students will have fun playing with the simulation sliders and seeing what happens.
In the first activity, your students will use the simulation called Resistance in a Wire HTML5. The learning goals for this activity are:
(1) to know the definition of the terms resistance and resistivity.
(2) to discover how resistivity relates to the resistance of a wire.
(3) to discover the relationship between the length of a wire and its resistance.
(4) to discover the relationship between the cross-sectional area of a wire and its resistance.
In the second activity, your students will use the simulation called Ohm’s Law HTML5. The learning goals for this activity are:
(1) to discover the relationship between the voltage in an electric circuit and the current through the circuit.
(2) to discover the relationship between the resistance of an electric circuit and the current through the circuit.
(3) to discover the relationship between the voltage in an electric circuit and the resistance of a circuit.
These online guided inquiry labs are geared towards middle school and high school students.
These are HTML5 web-based simulations that will run right in your web browser. Nothing to download or install. PhET Interactive Simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website. This PhET online simulation can be done in the classroom or during distance learning.
This product includes:
(1) The lab activity worksheets.
(2) An answer key for the worksheets.
(3) Two pages of notes covering resistance and Ohm’s law.
(4) A Getting Started Teachers Guide explaining the learning goals of the online lab and the important points of the simulation that you should point out before students begin their investigations into resistance and Ohm’s law.

This guided inquiry lab from my Tes shop will help your students gain an in depth understanding of the difference between resistors in series circuits and resistors in parallel circuits. I have done these activities with my students many times and they always find them fun and engaging. The best part is that your students won’t even know they are learning as they complete the inquiry-based laboratory assignment sheet that is included.
These guided inquiry activities are intended to be used with one of the two HTML5 Circuit Construction Kits from PhET Interactive Simulations. With these activities your students can quickly build electric circuits and collect accurate data that will allow them to compare the characteristics of resistors in series with resistors in parallel. With a little up-front guidance your students will be able to complete the activity with little assistance. The goals of these activities are that your students will understand:
(1) how the voltage drop across resistors changes when resistors are added in series and parallel (Kirchhoff’s voltage rule).
(2) how the current through resistors changes when resistors are added in series and parallel (Kirchhoff’s current rule).
(3) how the equivalent resistance changes when resistors are added in series and parallel.
(4) how the power output (bulb brightness) of the resistors changes when resistors are added in series and parallel.
(5) how removing one resistor from the circuit changes the behavior of the remaining resistors for series and parallel circuits.
This HTML5 web-based inquiry lab can be run from the internet browser on most cellphones, tablets and computers. Nothing to download or install. All of the PhET simulations are available from their website: PhET Interactive Simulations.
The product includes:
(1) Series Resistors Lab: Voltage, Current, Resistance and Bulb Brightness
(2) Parallel Resistors Lab: Voltage, Current, Resistance and Bulb Brightness
(3) Summary Assignment: Summary Comparing Resistors in Series and Parallel Circuits
(4) Notes Comparing Series and Parallel Resistors
(5) A Getting Started Teachers Guide
(6) Answer Keys

This engaging inquiry-based lab activity will guide your students to an understanding of Newton’s law of universal gravitation as they learn what factors affect the force between two masses. This online lab is intended to be used with the Gravity Force Lab: Basics HTML5 Simulation from PhET Interactive Simulations. The link for the simulation can be found inside the resource.
In the first activity students will learn that the gravitational force is always attractive. Newton’s law of universal gravitation is an inverse square law similar to Coulomb’s law. The difference is that gravitational forces are always attractive, while electrostatic forces can be attractive or repulsive. In the second activity students will determine the relationship between the force and the mass of the objects. In the third activity students will determine the relationship between the force and the distance between the objects.
In the summary questions students will practice what they have learned from the simulation and will use Newton’s law of universal gravitation to calculate the gravitational constant and the magnitude of the force between objects.
PhET simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website: hET Interactive Simulations. This PhET online simulation can be done in the classroom or during distance learning.
This product includes:
(1) The lab activity worksheets.
(2) An answer key for the worksheets.
(3) Notes covering a full description of Newton’s Law of Universal Gravitation.

With this PhET Simulation your students will gain a complete understanding of the law of conservation of energy and the relationship between potential, kinetic and total energy as the skater moves along the skate ramp. I have done this activity with my students many times and they always find it fun and engaging. The best part is that your students won’t even know they are learning as they complete the included laboratory assignment sheet.
This inquiry-based lab activity uses the Energy Skate Park: Basics HTML5 simulation from PhET Interactive Simulations. The simulation can be run from most cellphones, tablets and computers. Nothing to download or install. This activity will guide students as they observe how and why the potential, kinetic and total energy of the skater as she moves along the ramp. PhET simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website: PhET Interactive Simulations
This product includes the lab worksheets and answer key in PDF format as well as a Getting Started Teachers Guide.

Looking for a great resource for teaching optics and total internal reflection? This product contains everything you need: well organized handout notes, a set of exercises for this topic, as well as two presentations for use in your instruction. Just download and go! The exercises contain conceptual questions along with questions for practicing calculations. Answer keys are included for all exercises.
There is a link to the video from my Step by Step Science YouTube channel at the top of the worksheet. This video gives a detailed explanation of the material covered in the exercises. If students need help understanding the concepts or completing the exercises, they can simply click on the link and watch the YouTube video where the topic is explained in detail. This is also an outstanding resource for students who are not able to attend class.
All documents are included as PDFs and in editable forms such as Keynote, Pages, PowerPoint and Word.
Contents:
(1) One page of notes.
(2) A set of exercises for students to practice their problem-solving skills.
(3) Answer keys for all exercises.
(4) Presentations for use during instruction.

Newton’s Second Law: Acceleration
This Newton’s laws of motion product includes a complete set of teaching and learning materials for analyzing the motion and determining the acceleration of objects in different situations using Newton’s second law. In addition to drawing free body diagrams, your students will learn how to calculate the magnitude of the force of gravity, the normal force, the applied force and the force of friction. Students will also be introduced to the concept of the coefficient of friction and its effect on the acceleration of an object.
This product contains everything you need: presentations for Newton’s three laws of motion with example problems for calculating acceleration using Newton’s second law of motion; four sets of practice exercises where your students will analyze the motion of objects using free body diagrams to calculate the forces acting on an object, the coefficient of friction and acceleration; a complete in depth set of notes covering all three of Newton’s laws of motion; and answer keys for all exercises.
At the top of the notes and each set of exercises there is a link to videos from my Step by Step Science YouTube channel. The videos provide detailed descriptions and additional examples that correspond to the problems on the exercise sheets. This is a great resource for distance learners or students who are not able to be in class for this lesson. All exercises and presentations are provided in PDF and fully editable formats.
If your students are not yet familiar with free body diagrams, consider my companion product on this topic.
Contents:
(1) Three pages of notes providing an in depth explanation of Newton’s laws of motion.
(2) Four separate sets of exercises for calculating acceleration using Newton’s second law of motion. A total of nine pages.
(3) Answer keys for all exercises.
(4) Presentations with example problems in Keynote and PowerPoint.
(5) PDF files for all the documents.
(6) Fully editable Pages files for all the documents.

Now that you’ve finished wrapping up distance and displacement, next up is speed and velocity. This product contains everything that you need: two pages of handout notes that give a complete description of speed and velocity, three sets of exercises that will ensure your students have an in depth understanding of these topics and a presentation that you can use during your instruction.
No Preparation Necessary! Just Download and Go! Everything included as PDF files and editable Keynote, PowerPoint and Word files.
At the top of the worksheet there is a link to the related video from my YouTube Channel, Step by Step Science. If your students need help understanding the concepts or completing the worksheet, they can simply click on the link and watch the YouTube video where everything is explained in detail. An outstanding resource for students who are not able to attend class.
Contents
(1) Handout notes
(2) Exercises for your students to practice what they have learned.
(3) Answer keys for all exercises.
(4) Presentations in Keynote and PowerPoint.
(5) PDF files for all materials

This product from my Tes shop contains everything you need to teach the four kinematic equations with one dimensional horizontal motion. The kinematic equations are used to analyze the motion of objects that are experiencing constant uniform acceleration. In this product you get: a full sheet of handout notes including an explanation and two useful examples, three sets of exercises with answer keys and a detailed presentation for use during instruction or that your students can view outside the classroom.
No Preparation Necessary! Just Download and Go! Everything included as PDF files and editable Keynote, PowerPoint and Word files.
At the top of the worksheets there is a link to the related video from my YouTube Channel, Step-by-Step Science. If your students need help understanding the concepts or completing the worksheets, they can simply click on the link and watch the YouTube video where everything is explained in detail. An outstanding resource for students who are not able to attend class.
Contains:
(1) Handout notes
(2) Three sets of exercises for your students to practice what they have learned.
(3) Answer keys for all exercises.
(4) Presentations in Keynote and PowerPoint.
(5) Ready to go PDF files for all materials.

After completing this Color Vision PhET online physics lab your students will be able to: (1) describe what happens to white light when it passes through a color filter, (2) explain why filters are subtractive, (3) explain how white light is created, (4) state the three primary additive colors of light, (5) state the three secondary additive colors of light and explain how they are created, and (6) explain how other colors are created.
This online lab activity uses the Color Vision HTML5 simulation from PhET Interactive Simulations. The simulation can be run from most cellphones, tablets and computers. There is nothing to download or install.
PhET simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website: PhET Interactive Simulations.
This product includes:
(1) Three pages of notes on the theory of color vision.
(2) The lab activity worksheets.
(3) An answer key for the worksheets.

Looking for a great activity to start your unit on Newton’s laws of motion? Don’t want to give a big lecture or start with a bunch of mathematical calculations? Students love PhET Interactive Simulations and this guided inquiry activity on forces and motion is a great way to get started. Have fun and learn at the same time.
This online lab activity uses the Forces and Motion: Basics HTML5 simulation from PhET Interactive Simulations. The simulation can be run from most cellphones, tablets and computers. Nothing to download or install.
I find this to be a great guided inquiry activity that will work well for students from middle school through high school. This activity will guide students as they investigate different force scenarios and how they affect the motion of objects. They will be able to determine the magnitude and direction of the net force acting on an object, describe the effect of balanced and unbalanced forces acting on an object and why an object doesn’t move even when forces are being applied to it.
PhET simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website: PhET Interactive Simulations.
After completion of this activity you can have further discussions about the types of forces acting on an object, drawing free body diagrams, and the relationship between mass, force and acceleration as described by Newton’s second law of motion.
This product includes:
(1) The activity worksheets.
(2) An answer key for the worksheets.
(3) Notes covering a full description of Newton’s laws of motion.

In this guided inquiry online lab your students will investigate the pressure in fluids: liquids and air. By the end of this online lab they should be able to (1) describe how the pressure in air and water changes as a function of depth, (2) explain how the shape of the liquid container affects pressure, (3) describe all variables that affect pressure and (4) determine the density of an unknown fluid.
This online lab is intended to be used with the Under Pressure (HTML5) Simulation from PhET Interactive Simulations. The link for the simulation can be found inside the resource.
PhET Interactive Simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website: PhET Interactive Simulations. This PhET online simulation can be done in the classroom or during distance learning.
This product includes:
(1) The lab activity worksheets.
(2) An answer key for the worksheets.
(3) Notes presenting a full explanation of pressure and pressure in liquids.

In this guided inquiry online lab your students will investigate the physical properties of a material that determine its density. By the end of this online lab your students will be able to (1) determine the volume of an object using the displacement method, (2) calculate the density of an object, (3) explain how changing the mass or volume of an object affects its density, (4) explain why an object floats or sinks in a liquid and (5) determine the relative density of objects from their masses and volumes.
This online lab is intended to be used with the Density (HTML5) Simulation from PhET Interactive Simulations. The link for the simulation can be found inside the resource.
PhET Interactive Simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website: PhET Interactive Simulations. This PhET online simulation can be done in the classroom or during distance learning.
This product includes:
(1) The lab activity worksheets.
(2) An answer key for the worksheets.
(3) Notes presenting a full explanation of pressure and pressure in liquids.

Using another one of the excellent simulations from PhET Interactive Simulations, your students will be able to investigate the properties of longitudinal and transverse waves.
After completing this lab students should be able to: a) make waves with water, sounds and light and see how they are related, b) discuss wave properties using the appropriate terms, c) explain how changing the frequency and amplitude affects the characteristics of a wave and d) determine a method to measure and calculate the speed of a wave.
This PhET online lab contains three separate sections, one for each of the three types of waves: water, sound and light. The learning objectives for each section are different.
The water waves section focuses on becoming familiar with the basic characteristics of transverse waves and the terms we use to describe waves such as wavelength, amplitude, crest, trough, frequency and period. Students learn how changing the frequency and amplitude affects wavelength and other characteristics of the waves.
The sound waves section looks at how a speaker creates a longitudinal wave, how energy is transferred through a medium by this type of wave, the relationship between the frequency and period of a wave and how to calculate wave speed.
In the light waves section students will measure the wavelength and period of waves of different colors of light and then use this information to calculate the frequency of light waves and the speed of light. They should then be able to summarize the relationships between the period, frequency and wavelength of light waves.
You may want students to become familiar with the basic terms used to describe waves and their motion before they begin the simulation. Therefore, I have included a worksheet that students can complete before they get started. Students could also complete this worksheet during or after the simulation.
For this activity your students will use one of the simulations from PhET Interactive Simulations. The simulation is called Waves Intro (HTML5). PhET simulations incorporate research based, student centered activities that are fun and easy to use. All of the PhET simulations are available from their website.

Looking for a great all-in-one resource for teaching electric circuits with resistors in parallel? This product contains well organized handout notes as well as a complete set of exercises for resistors in parallel. The exercises contain conceptual questions as well as questions for practicing calculations. Answer keys are included for all exercises.
At the top of most of the worksheets there is a link to one or more videos from my YouTube channel. These videos give a detailed explanation of the material covered on each worksheet. If students need help understanding the concepts or completing the worksheets, they can simply click on the link and watch the YouTube video where the topic is explained in detail. An outstanding resource for students who are not able to attend class.
Contents:
(1) Three pages of notes for resistors in parallel.
(2) Guided inquiry lab for the PhET HTML 5 simulation, Circuit Construction Kit.
(3) Twelve pages of exercises and problems for your students to practice what they have learned.
(4) Answer keys for all exercises and problems.

Looking for a great resource for teaching electromagnetic induction and magnetic flux? This product contains everything you need: well organized handout notes, two sets of exercises for this topic, as well as presentations for use in your instruction. The exercises contain conceptual questions along with questions for practicing calculations. Answer keys are included for all exercises.
There are links to videos from my YouTube channel at the top of each worksheet. These videos give a detailed explanation of the material covered on the worksheets. If students need help understanding the concepts or completing the exercises, they can simply click on the link and watch the YouTube video where the topic is explained in detail. This is also an outstanding resource for students who are not able to attend class.
All documents are included as PDFs and in editable forms such as Keynote, Pages, PowerPoint and Word.
Contents:
(1) One page of notes.
(2) Two sets of exercises for students to practice their problem-solving skills.
(3) Answer keys for all exercises.
(4) Presentations for use during instruction.

This free sample is an example of the type of exercises that are included in my Optics products. All products include a variety of conceptual and calculation based exercises. Links to my other electric circuits products are given below.
At the top of each worksheet there is link to a video from my YouTube Channel, Step-by-Step Science I currently have over 100K subscribers. My videos give a detailed explanation of the material covered on the worksheets. If students need help understanding the concepts or completing the exercises, they can simply click on the link and watch the YouTube video where the topic is explained in detail. This is an outstanding resource for students who are not able to attend class.At the top of each worksheet there is link to a video from my YouTube Channel, Step-by-Step Science I currently have over 100K subscribers. My videos give a detailed explanation of the material covered on the worksheets. If students need help understanding the concepts or completing the exercises, they can simply click on the link and watch the YouTube video where the topic is explained in detail. This is an outstanding resource for students who are not able to attend class.
The products available for my TpT store are included as PDFs and in editable forms such as Keynote, Pages, PowerPoint and Word.
Most include:
(1) One or more pages of notes.
(2) Sets of exercises for students to practice their problem-solving skills.
(3) Answer keys for all exercises.
(4) Presentations for use during instruction.

Just starting out with Newton’s second law of motion? Don’t want to scare your students off with the equations and calculations? Then this is the perfect product for you. Using this product from my Tes shop your students will gain a strong conceptual understanding of how to apply Newton’s second law to many different situations. This is an important step for students to master before moving on to quantitative analysis of the motion of objects.
Free body diagrams show the relative magnitude and direction of all the forces acting on an object. The number of forces shown on a free body diagram depends on the specific problem and the assumptions made; air resistance is commonly ignored to simplify the problem. If the forces acting on an object are balanced, then the object is not accelerating and is therefore either moving with a constant velocity or at rest. If the forces acting on an object are unbalanced, then the object is accelerating.
At the top of each set of exercises there is a link to videos from my Step by Step Science YouTube channel. The videos provide detailed descriptions and additional examples that correspond to the problems on the exercise sheets. This is a great resource for distance learners or students who are not able to be in class for this lesson. All exercises and presentations are provided in PDF and fully editable formats.
Contents:
(1) Handout notes.
(2) Three sets of free body diagram exercises.
(3) Answer keys for all exercises.
(4) Presentation in Keynote and PowerPoint.
(5) PDF files for all the documents.
(6) Editable Pages files for all the exercises.

This free sample problem is an example of the type of exercises that are included in my electric circuits products. All products include a variety of conceptual and calculation based exercises. Links to my other electric circuits products are below.
At the top of each worksheet there is link to a video from my YouTube Channel, Step-by-Step Science I currently have over 100K subscribers. My videos give a detailed explanation of the material covered on the worksheets. If students need help understanding the concepts or completing the exercises, they can simply click on the link and watch the YouTube video where the topic is explained in detail. This is an outstanding resource for students who are not able to attend class.
The products available for my TpT store are included as PDFs and in editable forms such as Keynote, Pages, PowerPoint and Word.
Most include:
(1) One or more pages of notes.
(2) Sets of exercises for students to practice their problem-solving skills.
(3) Answer keys for all exercises.
(4) Presentations for use during instruction.