Best subjects for investigatory projects...
1. Broken crayons. Melting crayons, and turning them to candles by shaping them, or something.
2. Janitor fishes. You can remove their scales and make...
A mosquito repellent lotion from the leaves of atis (sweet sop) was invented by the Philippine Council for Health Research and Development (PCHRD). PCHRD is one of the five sectoral councils of the...