All Science Fair Projects

Over 1000 FREE Science Fair Project Ideas!

Project title Soil fertility and conductivityFeatured science projectScience project video
Difficulty Level Middle school
Project page  Click here to view this science project

This science fair project was performed to observe the relationship between soil type and soil conductivity. The testing was done using sand, clay, loam and loam mixed with fertilizer. 

Instructions preview
1. For this science fair project, the independent variable is the type of soil used – sand, clay, loam and loam mixed with fertilizer. The dependent variable is the conductivity of the soil. This is determined by measuring the current conducted in the soil using a miliammeter. The constants (control variables) are the amount of soil in the beaker, the amount of water added, the temperature of the environment (which will remain at room temperature), the battery voltage and the distance between the electrodes. 2. Dry the samples of sand, clay and loam under the sun or in an .....
Search science fair projects Browse science fair projects
Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.
Copyright (C) 2020 All Science Fair All Rights Reserved. Site
All Science Fair Projects Homepage