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Make an edible play dough with your child to help her develop her sensory and motor skills.

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, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

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

Check out this science project idea that will have your kid investigate how dots (also known as pixels) are used to create digital photographs.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Make a lei and bring a touch of the tropical lifestyle into your home!

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Science fair project that examines the physical features of elephants and butterflies and draws conclusions about their similarities.

Try this simple activity with your middle schooler to help him develop an understanding of why scientific classification systems exist and how they work.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

This science project investigates the influence of different genres of movies on appetite.

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.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Help your child build her very own science laboratory at home for experiments and science projects. This is a quick, easy, and fun educational tool!

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

What happens when colored beams of light mix? You might be surprised.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Wreath ornaments decorate your Christmas tree and act as a fun sensory craft for preschoolers. Make wreath ornaments with your child this holiday season.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

In this experiment you will replicate the mummification process by making a hot dog mummy.