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Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

Allow your first grader to get his artwork outdoors this summer by letting him create a garden art box for his arts and crafts supplies.

In this activity, find out who the flowers' "partners in crime" are by being a flower spy!

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Show your preschooler how to construct this very special planter for Mom. It makes a great pick-me-up, and it's easy for kids to make in a flash!

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

Does 100% Fruit Juice have more Vitamin C than juice with artificial ingredients? Find out in this science fair project idea!

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Make a lei and bring a touch of the tropical lifestyle into your home!

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

This project is about after-images and what possibly affects them.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!