Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

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

This science fair project idea explores whether white light can be separated into different colors.

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 determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Test whether plants can grow without sunlight and water.

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

This science fair project idea explores the egg's thin membrane.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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 cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea determines which method of hand cleansing is the most effective.

Examine the effect of pressure on carbonation in soda.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This science fair project idea produces sounds by creating vibrations using different objects.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

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

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.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.