What is teeny-tiny and a whole lot of fun? If you guessed nano science then you are correct! The DIY Nano app is a fantastic app that shows and explains different activities you can do to explore the world of nano science. Don’t worry though, you don’t need a full on mad scientist laboratory to do these experiments. Many of them can be done from the comfort of your own home and won;t break the bank. What’s better is the app is free and you can get it right here.