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Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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

This science fair project idea explores whether white light can be separated into different colors.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

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.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Discover whether cold or hot water from the faucet will boil faster on the stove.

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

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.