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.

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?

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.

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!

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.

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.

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.

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

During the Passover Seder, many Jewish families pour a cup of red wine for Elijah. This year, help your child create his own welcoming glass for Elijah.

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

How powerful is the reaction between baking soda and vinegar? Find out here!

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Expand on your childâs time-telling skills by helping him learn how an analog clock and a digital clock correspond.

Help your second grader to a better understanding of how to count and represent money with age old game of tic-tac-toe.

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

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Learn about coins and their value by making an animal piggy bank. Here's how to make a lion, pig, or sheep bank!

Graph are a great way to organize information. Your child will get to practice graphing by creating a bar graph and a pictorial graph of her friend's names.

Liven up a lesson about graphing by helping your third grader compile a bar graph from his classmates' birthday data.

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

Create a graph based on the interests of family member's to see who has what in common. Your child will practice her math skills and get to know the family!

Take the spookiness out of spiders with this web-making activity! Your child will practice talking about and creating shapes in this Halloween craft, and learn about spiders along the way.

Challenge your third-grader to sharpen her new math skills--and maybe do the planet a favor, too.

Prepare for some scary Halloween counting practice! This game encourages players to knock down cylinders and then add to determine their scores.

This footwear-focused activity introduces fractions as part of a set and it's the perfect way to generate excitement about fraction concepts.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!