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Water Cycle Demonstration

By Janice VanCleave

Demonstrate the Water Cycle. 1. Fold a paper towel in half twice. 2. Lay the folded paper towel on a table and stand a  glass on it. The  glass must be large large enough to support a 16-ounce (480-ml) plastic soda or water bottle as shown. 3. Fill the bottle half full with warm tap […]

Filed Under: Earth Science, meterology Tagged With: condensation, evaporation, vaporization, water cycle

Scientific Method for Young Kids?

By Janice VanCleave

Scientific Method: How Scientists find answers to problems. Actually, the method can be used by everyone for problems other than those related to science. Even so, I suggest that you encourage kids to be imaginative and to put on their science hat. This of course is a very special hat that could contain all kinds […]

Filed Under: scientific method Tagged With: evaporation

Cloud Formation

By Janice VanCleave

Question:How are clouds formed? Answer: Clouds are made of very tiny drops of liquid water called cloud drops or cloud droplets. Cloud droplets stick together to form larger heavier raindrops, which fall to the ground where they collect in puddles, lakes, rivers, and oceans. The water molecules on the surface of collected water (rivers, streams, […]

Filed Under: Earth Science Tagged With: cloud drops, cloud formation, condensation, evaporation, meteorology

Water Conservation

By Janice VanCleave

Question: Are we running out of water? Answer: Earth is not losing water. The water that dinosaurs drank is still on Earth somewhere. Water moves back and forth between the Earth’s surface and the air in what scientists call a water cycle. When you drink water your body uses it for a time and then […]

Filed Under: General Science Tagged With: condensation, evaporation, water conservation, water cycle

Water Cycle Diagram

By Janice VanCleave

A simple diagram with definitions describing the different forms of water as it moves through the water cycle.

Filed Under: Earth Science Tagged With: accretion, condensation, evaporation, precipitation, water cycle

Evaporation: Cools Skin

By Janice VanCleave

Evaporation Evaporation is a change from a liquid to a gas. Evaporation occurs below the boiling point of the liquid. This means that water will evaporate a temperatures below 212 degrees Fahrenheit (100 degrees Celsius). Activity Wet a cotton ball (or sponge) with water. The objective is to wet a small place on the skin, […]

Filed Under: Chemistry Tagged With: chemistry, cool, Energy, evaporation

How Crystals Form

By Janice VanCleave

What You Need to Know: A crystal is a solid in which the particles are packed in an ordered, repeated pattern. Precipitation is the process by which a solid falls out of a solution. A precipitate is the solid that precipitates. An evaporite is a precipitate formed by evaporation. What Does This Mean? Crystals are […]

Filed Under: Chemistry Tagged With: crystals, evaporation, evaporite, homogeneous mixture, mixtutre, precipitate, precipitation, solute, solution, solvent

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Welcome to Janice’s Science Extravaganza!

The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

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