In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

Create homemade seed packets with your kids. This activity combines your kids' love of science and the outdoors with a little writing and drawing fun.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Kids conduct a simple science experiment to see if seeds can grow without soil in this simple kindergarten science activity.

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

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

Determine if gender affects the ability to identify different smells.

In this activity, your child will be challenged to make a tower using paper cups.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

Transform your uncomfortable wooden shoes into charming mini planters!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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