Does Soil Have Parents - PowerPoint PPT Presentation

1 / 11
About This Presentation
Title:

Does Soil Have Parents

Description:

People are using plants and grass to hold down the soil. ... If you see soil eroding, protect it with trees or grass. Congratulations ... – PowerPoint PPT presentation

Number of Views:73
Avg rating:3.0/5.0
Slides: 12
Provided by: rickyv
Category:
Tags: grass | parents | soil

less

Transcript and Presenter's Notes

Title: Does Soil Have Parents


1
Does Soil Have Parents?
  • Soil doesnt have a mom or dad, but it is made up
    of Parent Material--the basic stuff to make soil.

2
Is Soil Made through Magic?
  • Soil doesnt just appear out of nowhere. A
    magician doesnt just wave a wand and poofsoil
    shows up. And its not made in a soil
    factory.Soil comes from broken up pieces of rocks
    and dead leaves, broken trees and dead bugs and
    those kinds of things.

3
What Does Weather Have to do With Soil?
  • When the weather gets hot rocks get bigger. When
    the weather gets colder rocks get smaller. If
    this happens enough, rocks will crack and break
    into smaller pieces, when they get really small
    they turn into soil. Rain and soil also break
    rocks into pieces. So the weather does make soil.
    And thats no snow job!

4
Whats on and in the Horizon?
  • Did you know that there are horizons in the soil?
    They are named O, A, B and C. O is the top
    horizon. The A horizon is topsoil that's alive
    with roots, tiny micro stuff like bacteria and
    fungi, and all kinds of critters like me. The A
    horizon is "A-OK" with me. Number three is
    horizon B. Plants and animals have a tough time
    getting through B. Why? "B"-cause it's very hard.
    See horizon C? You see, horizon C has less living
    stuff in it than O, A, and B. C is parent
    material that's made up of the rock and soil that
    formed the three layers above it.

5
Does Soil Come in Different Color?
  • Soils can come in black, red, yellow, white,
    brown, and gray. Not exactly a rainbow of colors,
    but they look good to me!

6
How Does Water Stay in the Soil?
  • When water gets into soil, it pours and pours.
    Pores are spaces in the soil that come in
    different sizes. The bigger the pore space, the
    more water it holds.

7
How Does Air Get Into the Soil?The Pores Strike
Again.
  • Air gets into the soil through the same pores
    that let in and hold water. Thats good news for
    under grounders who need air.

8
Does Soil Care About Time?
  • Soil is never in a hurry. Especially when it
    comes to making soil. It can take 1,000 years to
    form one inch of soil. If, people grew that
    slowly it would take 80,000 years to grow a
    basketball player.

9
Can We Keep the Soil from Blowing and Washing
Away?
  • People are using plants and grass to hold down
    the soil. One way is to plant windbreaks, rows of
    trees planted beside fields to keep soil from
    blowing away.

10
Soil Conservation
  • Soil conservation is the best way to make sure we
    have land we need to live on. If you see soil
    eroding, protect it with trees or grass.

11
Congratulations
  • You have a worms-eye view of that wonderful stuff
    we call SOIL!
Write a Comment
User Comments (0)
About PowerShow.com