Laws of Motion in Systems Activity: 8 Hands-On Stations for Teaching Newton's Three Laws Working Together (TEKS 8.7B)

Chris Kesler · 8 min read

By the time 8th graders get to TEKS 8.7B, they've usually met all three of Newton's laws separately. They know inertia. They know F=ma. They know action-reaction. What they haven't figured out yet is that all three of those laws are happening at the same time in literally every motion system around them.

Buckle a seatbelt and inertia, F=ma, and action-reaction are all firing the second a car brakes hard. Shoot a basketball and the same three laws explain the throw, the flight, and the bounce off the rim. Launch a rocket and you've got all three in one image.

The Laws of Motion in Systems Station Lab for TEKS 8.7B walks kids through this in one to two class periods. They roll bumper cars, launch balloon rockets, and analyze swimmer pushes, runner strides, and tectonic plates. By the end, they're labeling all three laws inside a single system without thinking about it.

⏱ 1–2 class periods 📓 8th Grade Science 🧪 TEKS 8.7B 🎯 Built-in differentiation 💻 Print or Digital

8 hands-on stations for teaching Newton's laws in systems

A station lab is a student-led activity where small groups rotate through 8 stations (plus a 9th challenge station for early finishers) at their own pace during one to two class periods. You become a facilitator instead of a lecturer. You walk around, spot-check, and break misconceptions while kids work through the rotation.

The Laws of Motion in Systems Station Lab has four input stations (where students take in new info on how all three of Newton's laws act together) and four output stations (where they show what they learned). Here's what's at each one.

4 input stations: how students learn Newton's laws in systems

🎬 Watch It! —

A short YouTube video reviews all three of Newton's laws back-to-back. Students answer three questions: what does Newton's first law say, how is force related to mass, and give five examples of Newton's third law in action. This is a refresher station. The video assumes kids have already met the three laws individually (TEKS 8.7A and prior); the goal here is to get them ready to see all three working together.

📖 Read It! —

A one-page passage called "The Science Behind Systems" walks students through how all three of Newton's laws appear in two systems: shooting a basketball and wearing a seatbelt during a car crash. Each law is called out with its specific job in each system. Three multiple-choice questions follow. Comes in two reading levels (Dependent and Modified) plus a Spanish version.

🔬 Explore It! —

This is the heart of the lab. Students run three quick demos and analyze a fourth scenario. (1) Bumper cars: roll toy cars at each other and label all three laws in the collision. (2) Box collision: push two small boxes toward each other and do the same. (3) Balloon rocket: blow up a balloon, let it go, and label all three laws in the launch. (4) Tectonic plates: read a short scenario about Earth's plates and identify which of Newton's laws applies. By the end, kids have seen all three laws appear simultaneously across four very different systems.

💻 Research It! —

Students read 12 reference cards: definitions of each law, then four photos of real systems (a swimmer pushing off the wall, a roller coaster cresting a hill, a runner sprinting, a space shuttle launching). They answer four questions, each one asking them to identify which of Newton's laws is showing up in that system and explain why. The rocket launch question deliberately asks them to find all three laws in one image.

4 output stations: how students show what they learned

📋 Organize It! —

A card sort. Kids match real-world examples ("a driver slams on the brakes and passengers continue forward," "larger tectonic plates take more force to change direction," "the floor pushes back on a basketball, making it bounce") with the right Newton's law (Inertia, Force and Acceleration, or Action and Reaction). Examples come from car safety, basketball, tectonic plates, and rocket launches. Easy to spot-check at a glance.

🎨 Illustrate It! —

Students choose one system (vehicle restraints, sports activities, amusement park rides, Earth's tectonic activities, or rocket launches) and draw it in detail. Then they label every part of their drawing with the specific Newton's law that's at work in that part. The point is to see all three laws inside a single system. This catches kids who can identify the laws individually but can't pick them out together.

✍️ Write It! —

Three open-ended questions: how Newton's laws work together in a seatbelt system, how they work in a rocket launch, and how the law of inertia applies to a bike rolling down a hill. This is the writing practice middle schoolers need and rarely get in science class.

📝 Assess It! —

Eight multiple-choice and fill-in-the-paragraph questions tied to TEKS 8.7B vocabulary (Newton's first/second/third law, inertia, acceleration). Includes a falling-book scenario, a baseball-bat-and-ball question, and a soccer-ball kick analysis. The fill-in paragraph weaves all three laws into a single passage. If you're grading the lab, this is the easiest station to grade.

Bonus Challenge It! station for early finishers

🏆 Challenge It! —

Four optional extensions: design an amusement park ride that shows all three laws, build a rocket-launch model and write a report, run a sports science investigation, or design and test an earthquake-resistant structure. Requires teacher approval before they start.

How this fits into a complete laws of motion in systems unit

This Station Lab is the Explore day of our full Laws of Motion in Systems Complete 5E Lesson for TEKS 8.7B. The complete two-week unit follows the 5E method of instruction and includes an Engage hook, the Laws of Motion in Systems Station Lab for Explore, PowerPoint slides and interactive notebook pages for Explain, student choice projects to Elaborate, and an Evaluate assessment.

Most teachers grab the full 5E because the Station Lab lands hardest with the days around it. But if you just need a strong hands-on day on Newton's three laws working together, the Station Lab on its own does the job.

Two options

Laws of Motion in Systems 5E Lesson cover

Full 5E Lesson $13.20 Get the 5E Lesson

Laws of Motion in Systems Station Lab cover

Just the Station Lab $7.20 Get the Station Lab

Materials needed to teach Newton's laws in systems

Materials beyond what's in the download:

Toy cars — at least 2 per Explore It! station for the bumper-car demo. Hot Wheels-style cars work fine.
Two small boxes per group — tissue boxes, shoe boxes, or anything light enough to slide easily.
Balloons — 1–2 per group rotation for the balloon rocket demo. (Optional: a piece of string and a straw to make a guided balloon rocket if you want kids to see linear motion clearly.)
Colored pencils or markers for the Illustrate It! station.
Pencils and the printed answer sheets (included)
A device with internet for the Watch It! station

Standard covered: Texas TEKS 8.7B —

Investigate and describe how Newton's three laws of motion act simultaneously within systems such as in vehicle restraints, sports activities, amusement park rides, Earth's tectonic activities, and rocket launches.

See the full standard breakdown →

Grade level: 8th grade physical science

Time: One to two class periods (45–110 minutes total). Plan for two periods the first time you run a station lab.

Common student misconceptions this lab fixes

"Rockets push off the ground (or air) to launch."
Rockets work the same in deep space as they do on Earth. Newton's third law is what does the work. Hot gas pushed down (action) means rocket pushed up (reaction). The Explore It! balloon rocket is the clearest possible demo of this. The air rushes out, the balloon flies the other way, and there's no surface to push off. Most kids have a lightbulb moment here.
"A seatbelt's job is to hold me to the car."
A seatbelt's actual job is to apply a force backward to overcome your forward inertia when the car decelerates. It's not pinning you to the seat for the heck of it. The Read It! passage and Write It! seatbelt question are built around this. Watch how kids describe the seatbelt's role. If they say "keeps you in the car," they're missing it. If they say "applies a force opposite to your motion," they've got it.
"A rolling ball stops because it 'runs out of force.'"
Balls don't carry internal force. They slow from external friction and air resistance acting against their motion (which is Newton's first law in action — an unbalanced force changing the motion). The Research It! roller coaster question and the bumper-car Explore It! demo both surface this. The car keeps rolling forever in your imagination; in real life, friction stops it.

What you get with this laws of motion in systems activity

📷 Inside-the-product — add screenshot of Read It passage or sample answer sheet

When you buy the Station Lab, you get a single download with everything you need:

Print version at two reading levels (Dependent for on-grade, Modified for additional support) plus a Spanish Read It! passage
Digital version as PowerPoint files (works in Google Slides too) at both levels — for 1:1 classrooms or Google Classroom
Teacher Directions and Answer Key for both versions, all keys included
Station task cards ready to print, laminate, and drop in baskets at each station
Reference cards for the Research It! station (definitions of each law plus four real-world system photos)
Sort cards for the Organize It! station (12 examples to match with the right Newton's law)
Student answer sheets for each level

No login required. Download once, use forever. Reprint as many times as you want.

Tips for teaching Newton's laws in systems in your 8th grade classroom

Two things make this lab go smoother the first time:

1. Pre-blow up a few extra balloons.

Balloons pop. Kids get distracted blowing them up over and over. Have 3–4 inflated balloons (closed with a clip, not tied) ready at the Explore It! station before each rotation. Keep a small pile of fresh ones nearby for replacements. This turns the balloon rocket demo from a 5-minute setup into a 30-second release-and-observe.

2. Stand near Explore It! and Illustrate It! during the first rotation.

Explore It! is where you spot kids who can identify one law in a system but can't find the other two. Illustrate It! is where you catch the same problem in a more permanent form. If kids draw a beautiful seatbelt picture but only label one Newton's law, you know you need to circle back to multi-law thinking before moving to the Explain day.

Get this laws of motion in systems activity

Laws of Motion in Systems Station Lab for 8th grade physical science — TEKS 8.7B

Buy the Station Lab — $7.20

Or if you want the full two-week experience with the Engage hook, Explain day, Elaborate extension, and Evaluate assessment all included:

Buy the full 5E Complete Lesson — $13.20

(Station Lab is included)

Frequently asked questions

What does TEKS 8.7B cover?

Texas TEKS 8.7B asks 8th grade students to investigate and describe how Newton's three laws of motion act simultaneously within systems like vehicle restraints, sports activities, amusement park rides, Earth's tectonic activities, and rocket launches. Students should be able to look at one real-world system and identify all three of Newton's laws working together inside it.

How is this different from TEKS 8.7A (Newton's second law)?

TEKS 8.7A focuses on calculations using F=ma. TEKS 8.7B builds on that and asks students to see Newton's first, second, AND third laws happening at the same time in real-world systems. Most teachers run 8.7A first, then 8.7B as the application unit.

How long does this laws of motion in systems activity take?

One to two class periods (45 to 110 minutes total). Plan for two periods the first time you run a station lab. Once your class has the routine down, most groups can finish all 8 stations in one period.

Do I need to provide my own materials?

Yes, but everything is cheap and easy. You'll need toy cars (about 4 for the Explore It! station), small boxes (tissue boxes work), balloons, and colored pencils. Total cost for a class of 30: under $15. The Watch It! station also needs a device with internet.

Can I use this for 7th grade or in a 1:1 digital classroom?

This standard is specifically 8th grade and assumes students already understand Newton's three laws individually. The Modified version of every station works as a stretch lesson for advanced 7th graders if they've been introduced to the laws. The full digital version (PowerPoint or Google Slides) works in 1:1 classrooms and Google Classroom.