Students investigate mechanical and electrical machines in the classroom and school, and identify which produce heat while operating.

Third graders measure the heat created at each center.

Learn how heat energy can be produced by mechanical and electrical machines.

Heat is produced from mechanical and electrical machines and human activities.

Third graders will understand that heat energy can be produced by mechanical and electrical machines.

What are electric motors? Discover how electric motors work, learn about AC and DC motors, and find out their many uses.

Learn about transformers, how they work, the turn ratio, and their uses.