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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Explore if planting seeds in a certain direction will affect how fast it germinates.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

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

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

The goal of this project is to create an exciting topographical map out of dough.

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

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

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

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

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

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