Oklahoma Science CH.PS3.4

ScienceGrades 9–12Energy

The Standard

Plan and conduct an investigation to provide evidence that the transfer of energy between components in a closed system involves changes in energy dispersal and results in a more uniform energy distribution among the components in the system while total energy is conserved.

Oklahoma Academic Standards for Science (2026)

Teacher's field guide

What This Standard Means

What Students Need to Do: Students plan a test with warm and cool objects inside an insulated container. They measure temperatures over time and use the results to explain where energy moves within the container.
What Mastery Looks Like: A student identifies the system boundary, chooses what to measure, and records temperatures at set intervals. They explain why the temperatures move closer together and account for energy gained by the cooler object, the air, and the container.
Common Misconceptions: Students may say the warm object loses energy because its temperature drops, without saying where that energy goes. They may also assume the cool object gains all the energy lost by the warm one, leaving out the air and container.
How to Assess It: Exit ticket: Two sealed water bags start at 40°C and 20°C inside an insulated box. Describe how you would measure energy transfer over time, predict what happens to both temperatures, and explain where the energy goes.

Lesson moves

Ways to Teach It

Place sealed bags of warm and cool water in a lidded foam cooler, then use thermometer probes to record both temperatures each minute.
Show a graph of two temperatures moving closer together and ask students to write where energy moved and what the graph cannot show.
Give pairs temperature readings from an insulated-box test and have them sort each reading into warm object, cool object, or room air.
Compare a hot lunch container with and without an ice pack, then ask students to name the system boundary and predict temperature changes.

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