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.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Find out whether matching resonant frequencies can cause objects to shatter.

This science fair project investigates why the number of visible stars changes from place to place.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This experiment will explore whether adding different substances to a gel affects its strength.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

Compare the ignition rates of various types of flame-retardant materials.

This experiment will explore whether fractals really repeat themselves infinitely.

This science fair project idea investigates how the shape of an object affects drag.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.