This do-it-anywhere guessing game helps reinforce number concepts. And it's a blast to play.

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

This very physical game gets math off the page and into the real world-- and it works on number sense and estimation, key skills for kindergarten readiness.

These pretzel reindeer cookies are a great holiday recipe for kids to make. Rudolph and the whole gang agree!

How many steps long is the hallway? Kids put their graph-making skills to work as they make a step map of their own house.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

The Kindergarten Personal Record Book makes measurement fun & active! Kids record their vital statistics from head to toe using unusual tools like paper clips.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

The crust is fun for kids to mix and roll out, and the filling overflows with vitamin and anti-oxidant packed berries!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Here is an activity that your kids can make for Mother's Day, a garden pot filled with edible "flowers".

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

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

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

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

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?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

If it's Easter, it must be time for egg hunts. But we have to admit, most kids would rather take a bite out of a yummy cupcake than a hard-boiled egg.

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.

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!

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

Add these fun chocolate Groundhog Day cupcakes to your holiday desert recipe repertoire! They're fun to make with your kids and a delicious winter snack.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

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!