Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

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?

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Here's a pressed leaf card project that puts science and writing together for your second grader.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Help your child make a beautiful homemade sandcastle that will last!

Help your child celebrate the summer and the sun by making a sandy seascape.

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?