Search 3rd Grade Science Projects : Page 2

Do different types of oil mix or stack? Find out in this science fair project idea!

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

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

This science fair project idea examines the reason boats are shaped and engineered.

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

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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.

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

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Discover whether a metal will expand under hot water.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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

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