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

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

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

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

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

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.

Get your child excited about measuring with this fun and easy household measurements activity.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

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

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

Time is an abstract concept that's difficult to grasp. But waiting for the turkey to come out of the oven on Thanksgiving is a concretely yummy experience.

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.

Challenge your preschooler to a game of shape match-up--an entertaining way to boost her observational ability.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

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.

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

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

These delicious Easter Basket Cupcakes are a simple, creative holiday treat. These cupcakes sit in waffle bowls with festive coconut grass and jellybean eggs.

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.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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

This project concerns activity happening millions of miles away, on the sun.

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

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