This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

This science fair project idea investigates whether air has mass and weight.

This science fair project idea determines which colors are more difficult to read at a distance.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science fair project discovers the properties and uses of sand and develops new or improved methods, techniques, or products involving sand.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

Free science fair project idea examining how different types of water affect plant germination and growth.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.

In this project, the affects of vitamin E are observed on a rose petal.

This science fair project determines which type of physical activity most improves memory.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

The project idea is to establish whether it is easier to memorize words with fewer syllables and to understand how memory works.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

This science fair project idea is develops a modern interior lighthouse design and encourages lighthouse preservation and restoration.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.