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

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Explore how you can achieve magnetic levitation with the Meissner Effect! This cool science project explains formation and applications of a superconductor.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Science fair project that creates fog using bottles of hot and cold water.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Got a kid who loves fashion? Help her develop her own unique style with this tie-dye project using natural dyes.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

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

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

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.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Learn how to make a paper snowflake with these simple instructions. Help your child learn how to make a paper snowflake with only paper and scissors.

Test whether cutting up meats will make it cook faster than just cooking it whole.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Here's a thought-provoking activity to make new vocabulary words "stick" in the mind of your young learner.

This project tests the hypothesis that dark colors absorb more heat than light colors.

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

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.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!