What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this science fair project, young children notice and track changes in trees throughout the year.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

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

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

Conduct a simple experiment with your child to study how dirt tracks change as they age in this 1st grade science activity.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Give your science savvy kindergarten a lesson in plant science with this fun carnation experiment.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.