Ideas for 8th grade level science fair projects include: discovering the effect soap has on plants, how air temperature and humidity effect soap bubbles and how much plant food is best for plants. Each project has its ow... More » and Science Buddies have good fifth grade science fair project ideas on their websites. Good fifth grade science fair projects include larger sample sizes, more complex mathematical analysis and more reliab... More » Education K-12 K-12 Curriculum

Great ideas for a sixth-grade science fair projects are found on websites for companies such as Education, Terimore and Science Buddies. These sites provide sample projects and step-by-step instructions for simple scienc... More »

Some sample ninth grade science fair projects include examining the effects of chewing gum on people's concentration, determining which direction solar panels should face, using an acid test to tell some chosen minerals ... More »

Some ideas for middle school science projects include finding out what plants grow in which soil pH level and discovering the electrical conductivity of certain soil types, says Live Science. Other science projects inclu... More »

Second grade science project ideas include measuring the rate of mold growth on food, making a lemon battery, experimenting with chlorophyll, making a volcano or seeing what happens when plants are watered with juice or ... More » Education Homework Help

One college-level science fair project idea is to try and prove or disprove that chemical pesticides negatively affect plant yields. Another idea is to theorize and build a model for a contraption that can safely remove ... More » Education Homework Help