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.

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!

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.

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

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.

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!

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

Try this entertaining and educational math activity that will teach your child how to add and subtract decimals.

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.

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

This decimal game is a great way to help your child get familiar with how decimal values work.

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.

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

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

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!

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!

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.

Money is a difficult concept to grasp. Help your kid get the hang of it with this pocket change triple Venn diagram activity.

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

Use familiar household items and decorations to turn estimation into a fun game!

This fun math card game is a great opportunity to discuss probability with your third grader.

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.