Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

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.

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

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Make sourdough bread...and learn some colonial history and modern science in the process!

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

This science fair project idea experiments with spinning color wheels and optical illusions.