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

Help your preschooler chart her good eating habits with this arts and crafts activity that has her making a healthy fruits and vegetables rainbow and graph!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.

This science fair project idea compares the mass and density of objects.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Choose a destination and "race" your way there! This activity is a great for charting progress and motivation.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

This science fair project idea compares biodiversity between drops of water.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

This project compares different liquids and the freezing, melting and boiling points of liquids.

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

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Help your child sharpen time skills by creating a special day and charting each part in a detailed schedule.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

Science fair project that compares tap water and bottled water for the presence of common impurities.