This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

This science fair project examines how seeds hitchhike on animals and clothing.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

This experiment tests which gender is better at catching how a magician performs his tricks.

In this science fair project, students investigate how different colors influence appetite.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Construct batteries that make electricity from fruits with this fun science fair project.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Use a dichotomous key to identify plants or animals.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

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

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

This science fair project idea determines if pancreatic lipase can break down lipids on its own or does it require the assistance of digestive bile salt.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

In this experiment, you will evaluate whether or not a diet that is supplemented with "brain-enhancing" foods can help improve memory.

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

This science fair project idea demonstrates how our fingers prune when in water.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

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