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

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

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.

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

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

Teach your young academic about counting and clocks with a tasty treat!

This study observes plants, insects and an animal living in proximity to a known source of EMF.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

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

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

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

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.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Encourage imagination and creativity with this magical craft that lets your child make and design his very own dragon egg.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

This science fair project idea determines which flower lasts the longest.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

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

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

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