4 Small rocks (size of a marble) preferably limestones
protective googles or face shield
2 ice plastic bags
small hammer
Prepare a safe workplace in front of the house and do this under the supervision of a responsible adult.
Double the ice plastic bag to make it durable.
Place the 4 limestones inside the ice plastic bag and place it on the floor.
Wear your protective goggles or face shield.
Carefully hammer the rocks 5 times and observe what happens.
Carefully hammer them again 10 times and then 20 times.
Write your observations in the table below.
What happened to the rocks after you hammered them?
How is the hammering of rocks related to weathering?
What do you think will happen to the rocks if you will hammer them over and over?
How will you relate the continuous breaking of rocks to the formation of soil?
RUBRIC FOR LEARNER’S ACTIVITY
RUBRIC DESCRIPTIONS
Excellent (5): Demonstrates strong performance and understanding in all aspects of the criteria.
Good (4): Shows solid performance with some areas of strength and some areas for improvement.
Satisfactory (3): Meets basic expectations, indicating adequate effort but with room for improvement.
Needs Improvement (2): Performance is below expectations, highlighting significant areas needing improvement.