Page 4 - part 2ffinal_Version_Science_BB_Prim.4_(2nd_term)_2024-2025[1]_Neat
P. 4
Breaking Down & Moving Rocks
The surface of the Earth is always changing due to:
Factors changing the Earth’s surface:
Wind Water Weather
Some changes can be very fast and others can be very slow.
Fast changes Slow changes
Sandcastle Coastal rocks
Both have steep needle parts.
Both have sloping (inclined) sides.
Water and wind create their shapes.
It may completely disappear in Little difference in its shape may
few minutes by sea waves. appear after many years.
Erosion of sandcastle
Disappearance of it is due to
transportation of sand particles by
water is natural erosion. Canyon
Second Term 30
