3rd and 4th Grade Science Projects Resources : Page 6

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea investigates how the shape of an object affects drag.

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

This science fair project idea explores how length affects the weight a bridge can hold.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Make a backbone model to explore human anatomy and life science.

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

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project idea investigates whether plants can survive being frozen.

Examine the effect of pressure on carbonation in soda.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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

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

This science fair project idea explores substances that cause a bubble to last longer.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

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

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.