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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

This project examines whether people's taste perception is influenced by what they see.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this project children practice the scientific method while playing with puffy paint.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Make edible amber fossils with your second grader to explore the fascinating world of science!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.