Search 3rd Grade Science Science Projects

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project idea demonstrates that plants give off water.

How powerful is the reaction between baking soda and vinegar? Find out here!

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.