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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This science fair project idea explores whether talking to a plant will help it grow.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Do you think heat can affect a plant's growth rate?

In this design challenge, your child will create a parachute for a small toy using typical household items.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.