Is your third grader bombing around on a bike these days? Here's a way to put all that fun time together with some math learning, too.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

This flannel board will give your child hands-on practice with math, but in a fun format, full of ladybugs.

Check out this fun science project to explore the relationship between solubility, drug absorption, and time required for a drug effect to become apparent.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This science fair project idea measures physical dexterity as a function of temperature.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

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

Pumpkin carving party activities are great for a pre-Halloween party. Try pumpkin carving party activities, including jack-o'-lantern ideas and fall recipes.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Can cells be frozen? This science fair project provides information to answer this question.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

This project examines the concentration of dissolved oxygen in water, with and without oil.