Popular Science Projects for Middle & High School Students
Invisible Ink The juice of a lemon or two is likely to be enough: you only need enough to dip a small paintbrush that you will use to write your secret message. buy electronic project kits online t he invisible ink can be made visible just by heating it carefully over a candle for a few seconds. For something with a bit more of a high-tech flair, you can use Quinine Sulfate tablets to make an ink that will only become visible under UV light. buy science project kits in I ndia Quinine sulfate is used for the treatment of malaria and is easy to find online. Crystal Growing There are many different techniques for having fun with crystals where you can buy engineering projects online . One of the most colorful methods involves dropping metal salts like calcium chloride, lead nitrate or copper sulfate into a solution of sodium silicate, but you will need to borrow those from the school's chemistry lab.If you would rather use off-the-shelf materials for your ...