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

Create a string of paper jack-o'-lanterns with this simple Halloween paper craft!

Help your child plant a "tea garden": a garden made of herbs for making teas.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Learn whether writing things down really makes things easier to remember.

Find out whether putting something on top of a plant will inhibit its growth.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Create some commotion on your table this Halloween with some flying bats that'll be cute enough to cause a ruckus among your little party monsters.

A package of memory wire and some beads are all that your artist needs to make a bracelet. The challenge will be to come up with a design inspired by autumn.

Teach your fourth grader how to craft her own decorative felt eggs, a perfect way to symbolize spring and new beginnings!

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

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Invite children to create a Fourth of July centerpiece with this simple craft activity!

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

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Explore what freedom and liberty mean to you this Fourth of July with a beautiful portrait collage!

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.

This science fair project idea produces varying pitches of sound.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea examines which type of insulation holds in the most heat.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Encourage your child to take ownership of a plant by creating a care plan and following it over the course of a couple of weeks.