Description
About Physical and Chemical Change.
Characteristics of Chemical Change.
Activity_Date
Activity Grade
Grade V
Syllabus
Yes
Lesson Plan
Yes
Test
Yes
Planned Activity
Change Around Us.
Activity Question
Question:
Riya accidentally leaves an iron nail outside in the rain. After a few days, she notices that it has turned reddish-brown in color.
Is this a physical change or a chemical change? Explain why.
Activity Response
Answer:
This is a chemical change because a new substance (rust, which is iron oxide) is formed when iron reacts with oxygen and water from the air. The change is permanent, and the nail cannot be turned back into pure iron by simple physical methods.
Homework Assigned
Revise the classwork.
MCQ Test URL
No test assigned.