Damaged Soil

1.Gather background information about soil pH and how plants survive in different soils pH’s. 

2.Get soil and 18 small flower pots.

3.Read the instructions to the pH tester and then test the soil.

4.Take some soil and make it have a pH of 4.0 by adding soil acidifer.

5.Use pH tester to test the pH of the soil you just mixed.

6.Put the soil you just made into 3 of the small flower pots.

7.Using mascing tape label the pH on the side of the pots.

8.Next take more soil and add a little less soil acidifier to make the soil have a pH of 5.4. 

9.Repeat steps 5, 6 & 7.

10.Take some more soil and add very little soil acidifier to make it have a pH of 6.2.

11.Repeat steps 5, 6 & 7.

12.Next take soil and add either some soil acidifier or lime, depending on what the pH of your soil was to begin with to make it have a pH of 6.8. (If your soil already had a pH of 6.8 skip this step and move on to step 13.)

13.Repeat steps 5, 6 & 7.

14.Next take soil and add lime to it until you have a pH of 8.2.

15.Repeat steps 5, 6 & 7.

16.Take more soil and add a little more lime than before to make it have a pH of 8.4.

17.Repeat steps 5, 6 & 7.

18.Now that each pot has the correct soil pH, plant 2 lima bean seeds in each one.

19.Find a good light source for the plants to grow under. (Make sure the light source will be high enough for the plants to continue growing.)

20.Everyday water pots/plants with deionized water.

21.Take observations, such as height, coloring, new growth, etc., in the observation booklet. (For measuring height use centimeters, when the plant grows over the size of a ruler, use a yardstick to measure.)

22.Observe plants for about 45 days (including days it takes to set up).

23.When plants begin to get taller use string to tie them up straight.

 

Abstract	Introduction
Hypothesis	Materials
Set-up	Procedure
Observations	Results/Conclusions