Olivia and John discuss a problem with a machine. They ask questions to find the cause. They work together to fix it.
Vocabulary:
Motor: A machine that makes something move.
Lubrication: Adding oil to make parts move smoothly.
Power supply: Source of electricity for a machine.
Dirt: Unwanted small particles that cause problems.
Smoothly: Moving without problems or noise.
Practice more with this lesson:
