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How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.

Demonstrate and explain holographic technology. Determine if a holographic image of a magnifier still magnifies the object beneath it. Explain the effect.

This experiment will explore if and where fractals can be found in the natural world.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

Using plants and other items from the outdoors and clothing they already own, your kids can dress up as any one of the four seasons or simply as a Garden.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

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

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

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Test out various brands of permanent markers to see which one is least water soluble.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Introduce your child to science with something they see everyday--their shadow!

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.