This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Learn all about balance and motion as your child designs a corn maze!

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Create a bee garden to help shelter bees in your area.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

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!

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Test whether plants can grow without sunlight and water.

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!

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

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

This science fair project teaches students the differences between fruits and vegetables.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Help your child learn about animal classification with this fun and delicious activity.