Energy Hunt at Home

4th Grade ScienceEnergy6 pages

About this worksheet

Homework for 4th grade science, with four pages of tasks and a two-page answer key. A warm-up matches clues such as warmth from the back of a refrigerator and a spinning ceiling fan to forms of energy. A worked example shows a toaster taking in electrical energy and giving out heat and light. Questions on a portable fan, a television and battery-powered devices follow. Students then find six devices at home, fill in a table of energy in and energy out, and pick the one that wastes the most energy as heat. It follows NGSS 4-PS3-2 and 4-PS3-4.

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Curriculum objectives covered

4-PS3-2

“Make observations to provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents.”

The warm-up and the home table ask students to name the light, sound, heat and motion that come out of electrical devices.

4-PS3-4

“Apply scientific ideas to design, test, and refine a device that converts energy from one form to another.”

The toaster example and question 6 treat each device as a converter, and question 9 asks how a redesign could waste less heat.

What's inside this worksheet

Part 1: Forms of Energy Warm-Up

Five energy cards and four clues to name, including a doorbell and a flashlight beam.

Part 2: Worked Example and Spot the Clues

The toaster example, then a question on its main output, a fan question, a TV multiple choice and a true or false on batteries.

Part 3: Your Home Energy Hunt

A six-row table for devices found at home. The toaster is off limits.

Part 4: Analyze Your Energy Data

Questions on wasted heat, devices that give out three or more forms of energy, and why a cooler device saves electricity.

Answers

Answers for every question and a sample table with a TV, hair dryer, microwave oven, lamp, washing machine and phone.

How teachers use it

Model one row

Fill one row together in class with a device in the room, like the projector, so students know what goes under Energy Out.

The hair dryer trap

Tell students that a hair dryer or an oven is not a good answer to question 7. Heat is the job those devices are built to do.

Share the finds

The next day, tally every device on the board. Phones and TVs usually top the list for three or more forms of energy.

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