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This page lists the Chemistry site additions and modifications for the week of April 13 - April 19, 2003. Click here to see the latest additions to the About Chemistry website.
Thursday, April 17, 2003
How to Make Invisible Ink - Corn Starch
Wednesday, April 16, 2003
Household Product Testing - Science Fair Project Ideas
Monday, April 14, 2003
Food and Cooking Chemistry - Science Fair Project Ideas
Sunday, April 13, 2003
Predicting Formulas of Ionic Compounds
~Anne Helmenstine, Ph.D.
This is the third invisible ink recipe I've posted. This one uses a corn starch gravy for writing the invisible message. Diluted iodine is used to reveal the secret writing.
Science doesn't have to be expensive and it doesn't require specialized lab equipment! These are ideas for science fair projects that involve testing or comparing common household products.
These are ideas for science fair projects that involve food or cooking chemistry.
This is a tutorial for working through problems asking you to determine the formulas of ionic compounds. Links are included to the periodic table, group chemistry, and valences of the elements.
New posts to the Chemistry forums:
