In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Find out which type of sponge holds the most water.

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

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

Use pepper and soap to discover some fun facts about the properties of water.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

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

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

This experiment will evaluate if chewing gum affects students' test performance.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This adventurous art project will send kids on a scavenger hunt for fall materials they can use in their artwork. This craft also teaches kids about seasons.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Make frog feet sponge prints with your child for a fun and educational crafts activity.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.