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

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

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

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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!

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.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This science fair project idea examines which type of insulation holds in the most heat.

Discover whether a metal will expand under hot water.

In this experiment we will be determining whether birds prefer certain colors of seed.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Start your toy engines -- this is going to be a fast and friction-filled race!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water