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.

This Pysanky egg-decorating activity is perfect for young artists. Bring a little color and creativity to any holiday with this traditional Ukrainian craft.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

Science fair project that uses distillation to convert salt water into fresh water.

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.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

In this science fair project, students examine how temperature affects sugar transport within a plant.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.