All Science Fair Projects

Over 500 FREE Science Fair Project Ideas!

Search Browse Forum Coach Links Editor Help Tell-a-Friend Encyclopedia Dictionary

Top 20 Science Project Searches

Science Fair Coach
What do science fair judges look out for?

Topics > Chemistry > Miscellaneous

	Project title	Electrolysis
	Difficulty Level	High school
	Project page	Click here to view this science project
Description
This science fair project was done to investigate the effect of increasing DC voltage and the concentration of electrolyte salt on the rate of production of hydrogen gas during the process of electrolysis.
Instructions preview
1. For this science fair project, the independent variables are the DC voltage and the concentration of salt in the electrolyte. The dependent variable is the time taken to collect the released hydrogen gas, and will be measured with the stopwatch. The constants (control variables) are the amount of oxygen collected in the test tube and the surface area of copper wire exposed to the electrolyte solution. 2. Using the pliers, strip both copper wires of approximately 30 millimeters of insulation on both ends. Bend the wire into ‘S’ shapes and place them inside the beaker, as shown below .....

View our all-time most popular science projects

You might also like these projects

Kits for your science fair projects Science fair book Science kit search tool

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.