Description
Effect of temperature on materials.
Activity_Date
Activity Grade
Grade V
Syllabus
Yes
Lesson Plan
Yes
Test
Yes
Planned Activity
Change Around Us.
Activity Question
Why does the metal lid of a glass jar become easier to open when we run it under hot water?
Activity Response
Answer:
When we run the metal lid under hot water, the heat causes the metal to expand more than the glass jar. This makes the lid slightly larger, loosening its grip on the jar and making it easier to open. This shows that materials expand when heated and contract when cooled.
Homework Assigned
Revise the classwork.
MCQ Test URL
No test assigned.