In this science fair project, students make their own rain gauge to measure rainfall.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Help your child plant a "tea garden": a garden made of herbs for making teas.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This science fair project idea explores the different properties & interactions of sugar molecules.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

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

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

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.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

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

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Making your own glass cleaner is easy, effective and inexpensive!