Description
Physical Change: Vaporisation and condensation.
Chemical Change: Fermentation and Corrosion.
Activity_Date
Activity Grade
Grade V
Syllabus
Yes
Lesson Plan
Yes
Test
Yes
Planned Activity
Change Around Us.
Activity Question
Question:
Why does an iron gate kept in the open rust, but an aluminium gate does not?
Activity Response
Answer:
Iron reacts with air and moisture to form a reddish-brown substance called rust, which slowly damages the metal. Aluminium, on the other hand, forms a thin protective layer of aluminium oxide on its surface when it reacts with air. This layer prevents further damage, so aluminium does not rust like iron.
Homework Assigned
Revise the classwork and do the exercise of chapter 6 (Change Around Us).
MCQ Test URL
No test assigned.