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If your Father's Day festivities include meeting up with extended family, why not put all the dads to the test with a chili cook-off?

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

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!

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

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.

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

If you're looking for a fun way to have your child gain practice pattern-making while working out fine motor skills, making Washi eggs is the perfect activity.

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

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

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

Any time is the perfect time to whip up a delicious batch of fluffy pumpkin cookies.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

This simple experiment serves as an introduction to the greenhouse effect.

Test whether cutting up meats will make it cook faster than just cooking it whole.

Do you think heat can affect a plant's growth rate?

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

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

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

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.