Search 3rd Grade Science Projects : Page 2

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

This project compares the strength of one, two, and three-ply toilet paper.

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

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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

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

Discover whether a metal will expand under hot water.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this science fair project you will make a model of a cell membrane using very simple material.

Cleaning can be a chore, but not with this sudsy experiment!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.