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This project explores what happens to a rubber band when it is heated and cooled.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Work on division with remainders in this fun fourth grade math board game.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

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

What's my number? Go ahead and guess! This logic game focuses on number sense that suits all ability levels, as players' questions can be simple or complex.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

What's your problem? I'll show you my math if you show me yours! Critical thinking and computation skills are the focus of this strategic math card game.

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Take paper football to the next level by creating a "field" with objects from around the house. A great indoor and rainy-day activity.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

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.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Engage your children with this fun fall activity that integrates math and science. First, your child will excavate to find leaves. Next, they'll examine them to determine the colors. Then, your child will graph their findings.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

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