Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

In this experiment we will be determining whether birds prefer certain colors of seed.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea investigates if fats add to the flavor of food.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

This science fair project idea demonstrates that plants give off water.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

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