Question

whice is the best project for science​

Answer 1

digestive system , life cycle of silk moth and excretory system pls mark me as brainlist

Answer 2

INVISBIAL INK

There are many different solutions that can make for an effective invisible ink. One of the most well-known is made from lemon juice. 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. The 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. Quinine sulfate is used for the treatment of malaria and is easy to find online.