Search 3rd Grade Science Projects : Page 7

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This project investigates the affect of storage temperature on microwave popcorn.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

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.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This project examines whether people's taste perception is influenced by what they see.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

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