Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Cleaning can be a chore, but not with this sudsy experiment!

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

Introduce your child to science with something they see everyday--their shadow!

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

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!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

I scream, you scream, we all scream for homemade spearmint ice cream!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

This science fair project idea investigates the difference in reaction times between boys and girls.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

This science fair project idea explores whether talking to a plant will help it grow.

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

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.