The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

In this activity, your child will be challenged to make a tower using paper cups.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

Check out this science project idea that will have your kid investigate how dots (also known as pixels) are used to create digital photographs.

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.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

Use a dichotomous key to identify plants or animals.

In this cool science experiment, test and compare the adhesive holding strength of homemade casein glue versus commercial glue.

Think about the adaptive utility of an important aspect of our physiology.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

The objective of this science fair project is to understand the effects of multitasking on the quality of work that is produced.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science project idea's objective is to understand how TV mysteries change expectations of mystery stories.

Word color association is just a fancy way to talk about the way we connect colors with words.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This science fair project idea discovers the principle of conservation of mass.

This science fair project examines whether ocean water can be made safe to drink.