Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this experiment you will evaluate whether praise improves athletic performance.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

This science fair project challenges students to research vortices occurring in nature and then create their own vortex.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

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

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

Science fair project that determines whether mass and weight are the same or different.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

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.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

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

Your child can create his own texture tree, experimenting with design during the process. The result will be a beautiful addition to your holiday decorations