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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.

Invite your kindergartener to explore the bright new world of measurement by starting out with nonstandard (and tasty!) units, such as gummy bears or worms.

Help your child practice her counting as she makes this fun and festive holiday decoration!

Practice conversions within the metric system in this fun math card game for third graders.

Help your child practice symmetry with this fun activity that will leave your child with a sweet symmetrical treat!

Practice measurement using centimeters in this fun math race designed for your second grade student!

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.

Making metric conversions is a difficult concept to master. Get in some extra practice by playing this Tic-Tac-Toe game with your learner.

Countries all around the world have been using the abacus for thousands of years to make math easier. Have your kid make his own abacus to practice arithmetic.

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

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.

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

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

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

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

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

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

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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

Determine whether the application of Febreeze will lower the bacterial count.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Try a 100th Day of School Scavenger Hunt with your preschooler, and send her on the search for objects of different colors!