In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Take a dive into the candy jar with this yummy science experiment.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

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

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Engineers in training can get started with this simple wheel-and-axle construction activity.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Cleaning can be a chore, but not with this sudsy experiment!

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Do you think heat can affect a plant's growth rate?

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

This science fair project idea produces sounds by creating vibrations using different objects.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Create a self-portrait from natural materials in this collage craft activity!

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.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.