Grade 4 · Science · Physical science

4th Grade Simple Circuits worksheets

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Simple Circuits

Grade 4 Science Worksheet

NameDate

Circle the answer.

1.
A student says, "The battery makes the bulb light, so the wire back to the battery is not needed." Why is this wrong?
- current needs a complete loop back to the battery
- the battery only works when it is warm
- the extra wire makes the bulb brighter
- the bulb needs two batteries to light
2.
A loop with a battery, a closed switch and a bulb works. Ty adds a buzzer into the same loop. Now nothing works. What is most likely?
- the bulb now blocks all sound energy
- the switch opened when the buzzer was added
- the buzzer is broken and leaves a gap in the loop
- the battery got stronger with the buzzer
3.
What does a buzzer change electrical energy into?
- cold
- light
- motion
- sound
4.
A toaster changes electrical energy into which kind of energy?
- motion
- heat
- cold
- sound
5.
A hair dryer blows warm air. What does it change electrical energy into?
- heat and motion
- light and sound only
- heat only
- motion only

4th Grade Simple Circuits worksheet 1 – printable PDF — Download PDF: 1 2 3 4 5 6

About this worksheet

Simple circuits show that electrical energy transfers through a complete path and can be converted into light, heat, sound, or motion asks fourth graders to connect observations with an explanation, model, or design decision instead of choosing a fact from memory. Students may focus on the battery alone and miss that every part must connect in a loop for current to transfer energy to the device. This worksheet uses short investigations and evidence-based situations so students must read what happened, decide which science idea is being tested, and choose the answer that fits the title.

Students identify complete and open circuits, choose conductors and insulators, explain energy conversions, and select fixes for circuit problems. Support versions use familiar objects and direct wording. Standard and challenge versions add closer distractors, fair-test language, and multi-step evidence. Ask your child to point to the measurement, diagram, map, or observation before answering. If the choice does not explain the evidence in the prompt, it is probably a distractor. That habit keeps science reasoning tied to data rather than guesswork.

What your child will learn

Recognize a complete circuit
Explain open circuit problems
Tell conductors from insulators
Describe electrical energy conversions

NGSS standard: 4-PS3-2

Worked example

A bulb lights when wires make a complete loop from the battery through the bulb and back to the battery.

Common mistake

Thinking a circuit works just because the battery is present, even when the loop is open.

Helpful hint

Trace the path from the energy source through the device and back again.

Next skill: Structures for Survival Earlier: Waves, Light, and Sound

Questions parents ask

What is the most common mistake with simple circuits?

Thinking a circuit works just because the battery is present, even when the loop is open.

How can I help my child with simple circuits?

Trace the path from the energy source through the device and back again.

Are these 4th grade science worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

More 4th grade physical science

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