Page 8 - part 2ffinal_Version_Science_BB_Prim.4_(2nd_term)_2024-2025[1]_Neat
P. 8
Erosion
Transferring / moving of sediments small sand, soil and rocks to other
places by wind, water and gravity.
Wind erosion Water erosion Gravity erosion
Gentle wind carries sand Sea waves pull sand Broken weathered rocks
grains shorter distance away from beaches. in a mountain can be
“1 m” than stronger wind pulled down by
and hurricanes. gravity.
Rivers and floods
carry sand, soil &
rocks downstream.
Rains washes away
the soil of farms
Changing the shape of beside downhills.
rocks:
1- When wind blows, it
carries sand & rocks.
2- Flying sediments hit a
rock and wear it.
3- This carves the rocks
into different shapes.
Second Term 34
