Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This easy project for little hands uses mushroom spores to make an imprint of the mushroom, and the result is very beautiful.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

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

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

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

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

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Here's a science activity to help your child investigate how seeds are designed to travel.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

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.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

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