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The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This biodiversity project examines the biodiversity in your own backyard.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This project compares the strength of one, two, and three-ply toilet paper.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

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.

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

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

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

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

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.

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

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.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

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