In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea produces varying pitches of sound.

This science fair project will help students learn about non-vascular plants, such as mosses.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

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

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

This science fair project idea explores the different properties of matter.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This science fair project idea determines what household items are good conductors of electricity.

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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