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Showing Results for water cycle

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!

The Hydrologic 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!

Does Hot Water Freeze Faster Than Cold Water?

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?

Water Purification Experiment: Removing Chlorine From Water

Help your kindergarten science maven explore the water cycle without getting everything wet.

Making Rain

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

Supercooled Water

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

Learn about Life Cycle in a Bowl!

Discover whether a metal will expand under hot water.

Does Water Temperature Cause Metal to Expand and Contract? 

Discover whether cold or hot water from the faucet will boil faster on the stove.

Does Hot Water Boil Faster Than Cold?

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

How Does Salinity and Temperature Affect the Density of Water?

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Specific Heat of Water vs. Specific Heat of Sand

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

Keeping Cut Flowers Fresh

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

Does Liquid Weigh More after Freezing and Boiling?

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Heat Conduction

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

Melting Ice Experiment

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Keep a Candle Burning Underwater!

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.

Crystal Wonderland

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.

Ocean Currents

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.

Factors Affecting Seed Germination

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?

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.

What is Plant 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.

How Does Frost Form?

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?

Sizing Up Marshmallows

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

Make Ice Cream in a Baggie!

Use this lesson to help your ELs quickly find information on a specific topic by looking for a noun and its pronouns in a nonfiction text. It can be a stand-alone lesson or used as support for the lesson Ecosystems Explained.

Information from Multiple Sources

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

States of Matter in a Baggie

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Salinity and Hatching Brine Shrimp Eggs

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

Heat Convection in Liquids

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

What Causes Dew?

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

See Seeds Come to Life!

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

Why Doesn't the Ocean Freeze?

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