emojt if it is an
SING PHASES AND LEARNING ACTIVITIES
carming Task 4. Identify the change happening in each situation. On the space provided before each number, draw a
heart eyes emojl if the change is an example of mechanical weathering and wow
example of chemical weathering.
1. A boulder of shore is slowly broken apart by the force of water.
2. Earthworm makes tunnels in the ground which may lead to the breakdown of stones and rocks.
4. Water Inside the rocks freezes and melts again
3. Some plants release chemicals which loosen the rocks and cause them to break.
5. The chemical composition of rocks changes when acid is produced by the roots of some plants.
6. Minerals in rocks dissolve.
7. Tree roots can grow into cracks and break rock aport.
8. As the wind blows it comes sand or small rock particles that scratch the rock's surface.
9. As the rocks expand the cracks become deeper and new cracks are produced
10. Rocks exposed to the intense heat of the sun crack and crumble when rain falls or soak in the
ground.​