In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

In this project students experiment with making music using only glasses of water.

This science fair project teaches students about wilting and browning of salad greens.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science fair project, students make their own rain gauge to measure rainfall.

In this science fair project, students create their own miniature salt flats at home.

This science project teaches students to classify different shapes of leaves.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this science fair project, students use the streak test to tell minerals apart from each other.

This science fair project teaches students the differences between fruits and vegetables.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.