Using a toy race car kids create a visual model of the Doppler Effect.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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

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

This classic children's game demonstrates how sound travels through air vs. through a solid.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

The concept of metamorphosis is fascinating to children of all ages. Help your child's creativity take flight as she makes her very own butterfly life cycle.

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.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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!

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.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Create a self-portrait from natural materials in this collage craft activity!

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

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.

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.

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

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

This science fair project idea investigates if fats add to the flavor of food.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

This project determines what category of person is most likely to be ticklish.

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.