Electricity in Closed Circuits Activity: 8 Hands-On Stations for Teaching Circuits and Electrical Energy (TEKS 4.8C)

Chris Kesler · 8 min read

The power goes out at home. You grab a flashlight, flip the switch, and nothing happens. You shake it. Still nothing. You twist the cap off and the batteries are loose. You push them back in, the right way, the bulb glows, and the room lights up again. That tiny moment is exactly what TEKS 4.8C is asking 4th graders to understand. Electricity needs a complete loop to do its job, and when the loop breaks, the light goes out.

That's TEKS 4.8C. It asks 4th graders to investigate how electrical energy travels in a closed circuit and how it transforms into other forms of energy like light and heat. For most kids, this is the first time they've built a real circuit with their hands. They've used flashlights, light switches, and laptops their whole lives. They've never once thought about the path the electricity has to take.

The Electricity in Closed Circuits Station Lab for TEKS 4.8C puts that path in their hands. Kids hook up batteries, wires, and bulbs into a working circuit. They watch the bulb light up when the loop is complete and watch it go dark the moment any single wire gets disconnected. By the end, they can sketch an open circuit and a closed circuit, label every part, and explain why one works and the other doesn't.

⏱ 1–2 class periods 📓 4th Grade Science 🧪 TEKS 4.8C 🎯 Built-in differentiation 💻 Print or Digital

8 hands-on stations for teaching electricity in closed circuits

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 the kids work through the rotation.

The Electricity in Closed Circuits Station Lab has four input stations (where students take in new information on how circuits actually work) and four output stations (where they show what they learned). Here's what's at each one.

📷 Image slot 1 — add screenshot

📷 Image slot 2 — add screenshot

4 input stations: how students learn electrical circuits

🎬 Watch It! —

A short YouTube video introduces electrical energy and circuits. Three questions on the answer sheet check whether students caught the big ideas: where most of the energy we use every day comes from, what a circuit actually is, and two items that could be used as a device to power a circuit. The video sets the vocabulary before kids touch a single wire so they walk into Explore It! already knowing what "circuit" and "device" mean.

📖 Read It! —

A one-page passage called "Fix the Circuit, Light the Bulb!" opens with a relatable scenario. The lights went out, you grab a flashlight, the batteries are loose, you fix them, and the bulb glows. The passage uses that moment to define electrical energy, circuit, closed circuit, open circuit, and electrical current. The relay-race analogy hits home: if one runner doesn't hand off the baton to the next, the race can't finish. Same thing with electricity. If any part of the loop breaks, the energy can't complete its path. Three multiple-choice questions follow, plus the vocabulary section. Reading level is set for 4th graders with short sentences and one familiar example all the way through.

🔬 Explore It! —

This is the station kids will remember. Each group gets two batteries, three wires, and two lightbulbs. They start by hooking up one battery and one bulb with two wires. The bulb glows. They sketch what they see and answer what kind of energy the electrical energy transformed into (light and heat). Then they disconnect any one wire and watch the bulb go dark. They add a second wire and second bulb and notice the bulbs dim. They add the second battery and watch the bulbs glow brighter. Each step is a different version of the same lesson: the loop has to be complete, and what you put in the loop changes what comes out.

💻 Research It! —

Ten reference cards take the conceptual depth a step deeper. The Electrical Energy card uses the water-through-a-hose analogy. The Current card shows electrons moving through a closed loop with a battery and bulb. The Open Circuit and Closed Circuit cards show side-by-side diagrams with the switch in different positions. Two cards group everyday devices by what they produce: Devices Producing Light Energy (a fluorescent bar, a neon OPEN sign, a laptop) and Devices Producing Thermal Energy (a portable heater, a hair dryer, a stove). Three questions tie the cards together: explain how electrical energy travels in a closed circuit and what happens at the load, what evidence shows whether a circuit is open or closed, and name two devices that change electrical energy into BOTH light and thermal energy.

📷 Featured station deep-dive — add screenshot of the Explore It! task card

4 output stations: how students show what they learned

📋 Organize It! —

A two-column card sort. Kids match five descriptions to either "Open Circuit" or "Closed Circuit": lightbulb is on/off, path is complete/incomplete, produces light and thermal energy or no new energy, electrical current is flowing or not flowing, and switch in the "ON" or "OFF" position. The sort fixes the most common 4th-grade terminology mix-up. "Open" and "closed" sound backwards to a 4th grader (open should mean on, right?) and seeing all five differences on one table makes the meaning click. Easy to spot-check at a glance.

🎨 Illustrate It! —

Students draw two sketches: one of an open circuit and one of a closed circuit. Both have to be labeled with energy source, load, conductor, and switch (open or closed). Below each sketch, they write whether that circuit "allows electricity to flow through it" or "does not allow electricity to flow through it." The labeling step is what catches the kids who only halfway understand. They can draw the picture but they freeze when they have to name the parts. That's exactly where the teacher walks over and asks two questions to push them.

✍️ Write It! —

Three open-ended questions in complete sentences. First, what is the difference between an open and a closed circuit. Second, explain how energy travels from the energy source to the load. Third, you walk into a dark room and flip a wall switch to turn on the light, what happened inside the circuit to cause that. The wall-switch question is the one that pulls the lab back to real life. Kids who only think of circuits as a battery-and-wire toy in class struggle. Kids who get it can describe the switch closing the loop, the current flowing through the wire, and the bulb lighting up because the loop is now complete.

📝 Assess It! —

Three multiple-choice questions plus a fill-in-the-paragraph that uses the five Read It! vocabulary words (electrical energy, circuit, closed circuit, open circuit, electrical current). The multiple choice covers what happens when electrical energy is used in a toaster (it turns into thermal energy and heats the bread), what kind of path makes the load not work (open), and how to create a closed circuit (make sure all parts are connected to each other). The fill-in-the-paragraph weaves the vocabulary together in a scenario about turning on a light. If you're grading this lab, this is the easiest station to grade.

Bonus Challenge It! station for early finishers

🏆 Challenge It! —

Four optional extensions: design an anchor chart describing and illustrating how energy moves through a circuit (must include all four parts: energy source, load, conductor, switch); make 5–8 flashcards from the lab vocabulary on index cards or Quizlet; record a "how to" video showing how to build a simple circuit and explaining how energy travels through it; or invent a game with a game board, cards, and rules where players use their knowledge of closed circuits to win. Requires teacher approval before they start.

How this fits into a complete Electricity in Closed Circuits unit

This Station Lab is the Explore day of our full Electricity in Closed Circuits Complete 5E Lesson for TEKS 4.8C. The complete two-week unit follows the 5E method of instruction and includes an Engage hook, the Electricity in Closed Circuits Station Lab for Explore, PowerPoint slides and interactive notebook pages for Explain, student choice projects to Elaborate, and an Evaluate assessment.

Most 4th-grade teachers I work with grab the full 5E because the Station Lab lands hardest when the days around it support it. But if you just need a strong hands-on day on electrical circuits, the Station Lab on its own does the job.

Two options

Electricity in Closed Circuits 5E Lesson cover

Full 5E Lesson $13.20 Get the 5E Lesson

Electricity in Closed Circuits Station Lab cover

Just the Station Lab $7.20 Get the Station Lab

Materials needed to teach electricity in closed circuits

Materials beyond what's in the download:

Two batteries per group for the Explore It! station. D-cell batteries are easiest for 4th graders to handle. AA batteries work too, but you'll need battery holders with leads.
Two battery holders per group (one per battery) with clips or wires to attach to the circuit.
Three insulated wires with alligator clips on each end per group. Sometimes called "jumper wires." These are the easiest type for 4th graders to clip and unclip without help.
Two small lightbulbs with bulb holders per group. 1.5V or 2.5V flashlight bulbs work. If you don't have bulb holders, you can use small LEDs, but flashlight bulbs make the dim/bright difference easier to see when the kids add a second bulb in step 6.
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

If you're like most 4th-grade teachers, you don't have a class set of circuit materials sitting in a drawer. A class kit (30 students, 10 groups) costs about $80 from a science supply company, and you can use it every year. If that's not in the budget, the upper-grade science teacher in your building probably has one and is usually happy to share for one week.

Standard covered: Texas TEKS 4.8C —

Investigate and explain how electrical energy is transformed and transferred through closed circuits, including a description of how electrical current flows in a circuit and how the energy is converted to other forms of energy such as light and heat.

See the full standard breakdown →

Grade level: 4th grade physical science

Time: One to two class periods (45–110 minutes total). Plan for two periods the first time you run this lab, especially because the Explore It! station has five sequential steps.

Common student misconceptions this lab fixes

"Open circuit means the light is on. Closed circuit means the light is off. Open is on, like a store that's open."
This is the biggest 4th-grade trap on this standard. The words are backwards from how kids use them in everyday life. A store that's "open" is doing business, so kids assume an "open" circuit must be working. The Organize It! card sort is built to fix this directly. Open Circuit: lightbulb off, path incomplete, no new energy, current not flowing, switch off. Closed Circuit: lightbulb on, path complete, light and thermal energy, current flowing, switch on. Five matching pairs make the connection visual. The Read It! relay-race analogy helps too. An "open" handoff (one runner not connecting to the next) means the race stops. By the end of the lab, kids can use "open" and "closed" with the meanings the science world uses, not the meanings their everyday brain wants.
"Electricity goes one direction. It comes out of the battery, runs to the bulb, and stops."
4th graders picture electricity like water from a hose. It comes out, goes somewhere, and stops. The whole point of the Explore It! station is to show that it doesn't work that way. The kids hook up battery, wire, bulb, wire, back to battery. The light comes on. Then they disconnect ONE wire anywhere in the loop, and the light goes out. They could break the loop right next to the battery or right next to the bulb. Same result. The loop has to be complete for the current to flow at all. The Research It! current card with electrons moving around a closed loop drives it home with a diagram. By the time they get to Write It! question 2 ("explain how energy travels from the energy source to the load"), they're describing a path, not a one-way trip.
"More batteries always make more light. Two batteries means two times brighter, three batteries means three times brighter, no matter what."
Kids reason like this because in their experience adding more usually means "more." The Explore It! station tests it directly. After they build the first circuit with one battery and one bulb, they add a second bulb and the lights actually dim. They have to answer why (the same electrical energy is now powering two bulbs). Then they add a second battery and the bulbs glow brighter again. Question 5 forces them to explain why. By the end of those two steps, they understand that adding a bulb spreads the energy thin and adding a battery puts more energy into the loop. "More batteries" isn't a magic formula. What you add and where you add it changes the result.

What you get with this Electricity in Closed Circuits 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 (10 cards covering electrical energy, current, open and closed circuits, devices producing light energy, devices producing thermal energy, and the analysis questions)
Sort cards for the Organize It! station (an Open Circuit and Closed Circuit comparison across lightbulb on/off, path complete/incomplete, energy produced, current flowing, and switch position)
Student answer sheets for each level

Tips for teaching electrical circuits in your 4th grade classroom

Two things make this lab go smoother the first time:

1. Test every battery the night before.

Nothing kills the Explore It! station faster than a dead battery in one group's basket. A circuit that doesn't light up looks identical to a circuit that's built wrong, and 4th graders can't tell the difference. Take five minutes the night before to clip a wire to each battery and touch the other end to a bulb. Toss any battery that doesn't make the bulb glow. New D-cell batteries from a 10-pack will run this lab for years if you collect them at the end of each class.

2. Use alligator-clip wires, not bare copper.

If you're like most 4th-grade teachers, you didn't take electrical engineering. Bare-copper jumper wires require kids to hold every contact in place at exactly the right spot, which is a lot of fine motor control under time pressure. Alligator-clip wires snap onto a battery terminal or a bulb holder and stay there. Kids can focus on the circuit logic instead of fighting the physical setup. A class set of 30 alligator-clip wires costs about $15 from a science supply catalog and pays itself back the first time you use them.

Get this Electricity in Closed Circuits activity

Electricity in Closed Circuits Station Lab for 4th grade physical science — TEKS 4.8C

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 4.8C cover?

Texas TEKS 4.8C asks 4th grade students to investigate and explain how electrical energy is transformed and transferred through closed circuits, including how electrical current flows in a circuit and how that energy converts to other forms like light and heat. By the end of this lab, kids should be able to build a circuit, label every part (energy source, load, conductor, switch), and explain why an open circuit doesn't work but a closed circuit does.

Is this kids' first time meeting circuits in science?

For most 4th graders, yes. They've used flashlights, light switches, and laptops their whole lives without thinking about how the electricity gets where it's going. The Read It! flashlight passage anchors the lab in a real-life scenario they recognize, the Explore It! station gets them building working circuits with their own hands, and the Organize It! Open vs. Closed sort locks the vocabulary. By the end, they have the right words for what they've been doing without realizing it.

How long does this Electricity in Closed Circuits activity take?

One to two class periods (45 to 110 minutes total). The Explore It! station has five sequential steps (build, observe, disconnect, add a bulb, add a battery), so plan for two periods the first time. Once your class has the rotation routine down, most groups finish all 8 stations in one period.

What if I've never built a circuit myself?

You're in good company. Most 4th-grade teachers I work with haven't built a circuit since their own school days, and several have told me they were nervous about teaching this standard before they ran the lab. The good news: the Explore It! station instructions are step-by-step and the kids do all the building. Your job is to walk around with a working circuit (build one yourself the night before so you know what "correct" looks like) and help groups that get stuck. If you can clip an alligator clip to a battery and a bulb, you can teach this lab.

Can I use this in a 1:1 digital classroom?

Yes. The full digital version (PowerPoint or Google Slides) works in 1:1 classrooms and Google Classroom. Students drag digital cards at the Organize It! Open vs. Closed sort and type their answers on the answer sheet. The Explore It! hands-on circuit-building step is harder to digitize, but a free virtual circuit simulation (PhET's "Circuit Construction Kit") lets students drag batteries, wires, and bulbs and watch the same open-vs-closed behavior on screen.