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.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

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.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

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?

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

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

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

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

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

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

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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

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

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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

This first grade science activity is great for winter! Your child will grow and observe her own amaryllis bulb, keeping a journal of her scientific findings.

Tangrams are a kindergarten staple, but now it's time to take them to the next level! Get your child started on geometry with this tangram puzzle.

Make a lei and bring a touch of the tropical lifestyle into your home!

This fun game helps children learn to estimate the most basic unit of time--a minute--without a clock.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.