What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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

This science fair project idea identifies clouds as a means of predicting the weather.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Encourage imagination and creativity with this magical craft that lets your child make and design his very own dragon egg.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.