This activity is based on the popular card game, Slapjack. It's rip-roaring fun, and it reinforces the concepts of odd and even.

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?

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

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.

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

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.

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

The project idea is to understand why chocolate turns white and to determine the fastest way that this process can occur.

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.

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

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

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

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

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

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

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

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

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

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

A food groups plate shows your child what category her foods belong in. Make a food groups plate with your child before dinnertime.

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

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.