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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.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project idea explores whether color affects a person's emotional state.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This science fair project teaches students about wilting and browning of salad greens.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

In this science fair project, students create their own miniature salt flats at home.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This experiment tests which gender is better at catching how a magician performs his tricks.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.