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Here's an activity that will get your child's attention with a back-to-school shopping spree. He'll use decimal skills to add, subtract, multiply, and divide!

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

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

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

When you're studying the Mayflower, numbers can be an important part of the history...and a great chance to practice elementary math!

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

Increase your child's confidence in interpreting bar graphs and throw a little candy into the mix to sweeten the learning process.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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

Use this great no-bake recipe to save energy and keep cool.

Turn any sunny summer day into a fun and special occasion by having a watermelon seed spitting contest!

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

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

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

Use a recycling project to hone your childâs sewing skills and clean up her art supplies when she turns the leg of an old pair of jeans into a storage basket.

Simplify fractions with your child in this fast-paced math card game.

Teach your fifth grader an important math concept with this quick and simple activity that shows them how to divide whole numbers by fractions.