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.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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.

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

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.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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!

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

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!

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

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!

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.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

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

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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

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