Download presentation
Presentation is loading. Please wait.
1
Sixth Grade Science SOIL Lesson 8
2
Earth’s Soil Soil is the basis of life for all living things on Earth’s surface
3
Particles of weathered and eroded rock
Of What Is Soil Made? Particles of weathered and eroded rock Humus –once living plants & animals Air Water Living organisms
4
Physical Rock Weathering
Mechanical weathering – rock changes shape , size, but is still the same material Ice Wedging Pressure Release Plant root growth Abrasion
5
Mechanical Weathering: Ice Wedging
6
Mechanical Weathering: Pressure Release/Exfoliation
7
Mechanical Weathering: Plant Root Growth
8
Mechanical Weathering: Abrasion
9
Chemical Weathering Dissolving Rusting
10
Chemical Weathering: Dissolving
11
Chemical Weathering: Rusting
12
Rock Particles In Soil Are Of Different Sizes
Gravel Sand Silt Clay
13
Soil Layers Soil Layers are called HORIZONS
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.