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

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.

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.

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?

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

Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?

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.

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.

How many steps long is the hallway? Kids put their graph-making skills to work as they make a step map of their own house.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

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

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Declare a "Pocket Day" in your house and help your child practice his addition skills as he counts how many pockets the family is wearing that day!

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

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.

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!

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

This experiment investigates if stress alters body temperature.

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 science fair project idea determines the way in which color affects memorization.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

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.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Will your liquid weigh less once you remove the fat from it? Find out in this 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.

This experiment investigates if small changes in your diet can alter your basal body temperature.

Learn to recognize symmetry by playing this game! The more you play, the better you'll get at recognizing this special characteristic many playing cards have.