Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

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

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

This science project examines the history of earthquakes and what we can do to prevent future disasters.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Start thinking about how the internet works by assembling an Ethernet cable of your own!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!