Have your child construct his own Christmas tree from construction paper while cutting, overlapping and measuring to create an adorable modern design.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Shamrock Stamps are a great way to celebrate St. Patrick's Day. Simple and symmetrical, this symbol of Irish culture is the perfect shape for prints.

Help your preschooler grasp the concept of ordering and sequence while teaching him valuable vocabulary with simple activities around the house.

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

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

This science fair project idea determines which flower lasts the longest.

Introduce the idea of measuring weight to your preschooler or kindergartener by making a fun and easy-to-use bungee scale to weigh household objects.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

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.

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.

The objective of this experiment is to evaluate the effects of acid rain on plants.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

This project examines the affect of temperature on viscosity and surface tension of different liquids.