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

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.

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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.

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

Is your third grader bombing around on a bike these days? Here's a way to put all that fun time together with some math learning, too.

Multiplication facts are a necessary skill, and this board game provides a fun way for your third grader to practice them!

Help your child practice multiplication tables with this mental and physical multitasking game that uses a hula hoop to get into the swing of things.

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

Getting kids to memorize their times tables can be worse than pulling teeth. Sweeten the deal with this activity that combines math and sugar.

Your kindergartener will learn basic math concepts and create a beautiful keepsake with this African flag reference book.

Tackle both boredom and mathematics with this inventive arts and craft project!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

Most timeline activities are all about history. Make timelines more relevant and personal for your child by focusing on the hours and minutes of his day.

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

Try this recipe with your child and explore Ethiopia through one of its dietary staples: injera, or flat bread!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

This science fair project idea identifies clouds as a means of predicting the weather.

Teach your third grader about the concepts money and purchasing with this "Mock Card Shop" activity.

Delay your child's sugar overload, and develop his critical thinking skills, by doing some "sweet sorting" of his Halloween treasures!

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

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

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.