Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

Science fair project that demonstrates how stalagmites and stalactites are formed.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

Hunt for natureâs treasure, the many different products made by trees!

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

This science fair project idea determines which flower lasts the longest.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

Using plants and other items from the outdoors and clothing they already own, your kids can dress up as any one of the four seasons or simply as a Garden.

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Test your skills as a weather forecaster, and learn some science terms on the way!

In this fun activity, frozen cubes of paint provide your preschooler with a cool new way to paint a masterpiece.

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

Introduce your child to the amazing, almost magical phenomenon of static electricity!

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

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