Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Have your child kick off their summer vacation by making a miniature water slide!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Help your 4th grade child work on understanding place values of digits in decimal numbers with this fun activity.

Discover whether a metal will expand under hot water.

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

Put old, worn-out picture books to work by constructing a book birdhouse, perfect for welcoming spring.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

This is a simple, fast game that you and your child can make together to help him master rounding with decimals.

It doesnât take long for flashcard drills about prefixes and suffixes to get old. Turn the learning process into a treasure hunt with this fun activity!

This decimal game is a great way to help your child get familiar with how decimal values work.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Using low-tech supplies and a little extra ingenuity you can help your fourth grader create this unique, heartfelt Valentine card.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

Make a sweet, budget-friendly treat for your loved ones with these trick-or-treat lollipops.

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

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

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Popcorn pops get a Valentine's Day twist with pink popcorn and a red candy center. Make popcorn pops as a special treat for Valentine's Day or any day.

Reinforce your child's measurement and problem solving skills this holiday season! This decadent bread pudding, dressed up with pumpkin and warm spices, is a holiday show-stopper.

Science fair project that examines condensation and the conditions needed in order for dew to form.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Don't despair if numerators and denominators seem like a bore to your child. This colorful collage is sure to show him the brighter side of fractions.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.