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 > Medicine & Health > Nutrition

	Project title	Orange ripening and vitamin C
	Difficulty Level	Middle school
	Project page	Click here to view this science project
Description
This science fair project was done to compare the vitamin C concentration in oranges during various stages of ripening. The testing was done by extracting the juice from an unripe orange, half-ripe orange and a fully ripe orange.
Instructions preview
1. For this science fair project, the independent variable is the type of orange used – ripe, half ripe and unripe. The dependent variable is the number of iodine-starch drops required to neutralize the vitamin C in the juice, determined by dropping iodine-starch into the orange juice until the solution turns blue. The constants (control variables) are the amount of orange juice, the concentration of iodine and the temperature of the environment, which will remain at room temperature. 2. Label the 3 beakers as ripe, half ripe and unripe respectively. Use the juice extractor to extract the juice from .....

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.