What's New
Activity 2
Weathering is the process of disintegration (physical) and decomposition (chemical)
of rocks. Weathering is a process of breaking down rocks into small particles such
as sand, clay, gravel and other fragments. There are two types of weathering:
mechanical weathering and chemical weathering. This activity will allow learners to
differentiate physical changes from chemical changes.
Learners will follow the following instructions:
1. Prepare the needed materials: two pieces of paper and match.
2. Tear one paper, observe, and record your answer.
3. Burn the other paper (with teacher supervision), observe, and record your
answer.
4. Based on your observation, differentiate the changes after tearing and
burning.
Tearing of paper
Burning of paper
Before
Before
After
Activity 3
Spot the difference/s.
After
What can you say about the image? Do you see any difference?
7
​