1. Understanding Dirt
Was is soil?

2. How much dirt do you eat in your life time?
About ONE pound !!!!

3. So what’s in dirt?

4. Plants grow better in different soils ..
Maple Trees
Hydrangeas have a different colored flower, depending on the soil (acid or basic)

5. 3 main Soil components … Silt Sand Clay Organic matter
Full of nutrients
Sand
Dry soil
Looses water & nutrients quickly
Clay
Forms a water barrier

6. Silt Holds lots of water & nutrients Fluffy, holds air
Very fertile soil
Needed to grow a good garden
Plants:
Hardwood trees, nice lawn, vegetables

7. Sand Dry soil Water runs right through it Nutrient poor Conifers Pine
Evergreens

8. Clay Hard Holds water Gives structure
Difficult for roots to grow through

9. Where does the water stay ?
Air spaces

10. Scientific Method Problem / Questions Hypothesis Experiment Data
Conclusion

11. DIRT Experiment ….

12. Experiment