Investigatory Report
By: Karli Anne Lao-21 Rhyll Joy Balinas-17 Rechelle Allison Lee-22
What type of eggshell can make the best fertilizer?
Problem
What type of eggshell can make the best fertilizer?
Hypothesis
We think that if we use century eggshell, It will make the best
fertilizer among the other eggshells.
Experimental Design
• MANIPULATED VARIABLE- type of eggshell
• RESPONDING VARIABLE- the growth of the plant, the
height of the plant
Materials
• 5 pots with the same amount of a particular soil and with plants of the same kind
• 4 kinds of eggshells• Water
Procedure
1. Pound the 4 kinds of eggshell.2. Place each kind of eggshell on a pot.3. One pot contains no pounded eggshell.4. Water them everyday.5. After a few days, measure the height of each
plant.6. The tallest one is placed on the pot with the
best fertilizer.