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

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

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

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This science fair project examines how seeds hitchhike on animals and clothing.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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

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

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!