Illuminating Aluminium, Potato Chip Science: How Greasy Are Your Potato Chips? and Corn Seed Germination are some common fourth grade science projects. Other projects are Energy From Garbage: How to Make Biogas, Compost Ingredients and The Mohs Test.
Illuminating Aluminium measures the weights of aluminum cans from different brands. The project focuses on reusing aluminium cans. In the potato chip project, students measure the greasiness of different brands of potato chips. It focuses on using less oil in foods. The Mohs Test is a project to measure the hardness of different minerals, and Energy from Garbage aims to estimate the amount of methane produced from different food scraps.