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This document describes three student science projects focused on recycling and reusing materials. The first project involves grinding eggshells into a flour to provide calcium, as half an eggshell has as much calcium as a glass of milk. The second uses banana, tomato, and lettuce extracts and other ingredients to make watercolors and reduce tree usage. The third recycles paper into organic fertilizer to prevent waste and spending on fertilizer, allowing plants to grow leafier and produce more oxygen. The p

Author

Rudilyn Abad

Language

EN