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Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Give your budding young observers a chance to discover simple machines at use in their own home.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

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

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Create homemade seed packets with your kids. This activity combines your kids' love of science and the outdoors with a little writing and drawing fun.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

With some cookie dough and ordinary household objects, let your kindergartener explore how fossil imprints are made.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

Make a backbone model to explore human anatomy and life science.

This science fair project idea explores whether color affects a person's emotional state.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

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?

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

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.