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

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

This science fair project evaluates if and how eating a large meal affects ability to perform mental tasks.

This experiment investigates whether smell can be used to enhance test subjects' memories.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This experiment evaluates whether a personâs dominant hand is more sensitive than their non-dominant hand.

This science fair project idea produces sounds by creating vibrations using different objects.

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

The objective of this sociologically-inclined experiment is to evaluate whether kids' toy preferences are hardwired or develop as they grow.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Here's an arts and crafts activity for preschoolers and pre-kindergarteners: build brick buildings with homemade mud bricks made from dirt and water.

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!

This classic children's game demonstrates how sound travels through air vs. through a solid.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

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.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

Show your child the solar system and let them explore the stars and space by creating a painting. It's a fun and easy way capture your child's imagination.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.