Using plants and other items from the outdoors and clothing they already own, your kids can dress up as any one of the four seasons or simply as a Garden.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

Help your child create a written message and practice their letters using sticks they find in nature. Here's how to get started.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

In this project, you will observe and record changes in sunspots over two weeks.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Try this simple activity with your middle schooler to help him develop an understanding of why scientific classification systems exist and how they work.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

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.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!