In this science fair project, young children discover what happens when two fluids that have different densities get together.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

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

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

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.