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Einstein’s Messy Office

By Janice VanCleave

I enjoyed seeing the office of Albert Einstein as well as the offices of the other brilliant minds shown in the photos below. My first thought was that I must be brilliant because my office is often as messy as these. It just depends on how many projects I am working on. One technique that […]

Filed Under: Science Projects

Bird Beaks

By Janice VanCleave

I love this bird’s hairdo. It reminds me of a time when I told the beautician that I wanted something wild and crazy and then sat back and dozed. When I opened my eyes my hair was about 3 inches long all over my head. I got what I asked for. It was wild and […]

Filed Under: Biology Tagged With: bird beak, hummingbird, snowy egret

What Is the Scientific Method?

By Janice VanCleave

The Scientific Method is a Problem Solving Process The scientific method is not a set of steps that must be followed in order with fidelity. The scientific method includes Research, Questions, Hypotheses, Experimenting, Collecting Data, Making Conclusions. But, the order is not set in stone nor is there a rule that all the steps are […]

Filed Under: Science Projects Tagged With: exploratory research, fact finding, non-Newtonian fluid, research, scientific method

The Chemistry Of Fruit Browning

By Janice VanCleave

Why do apple slices turn brown? The peel of an apple prevents oxygen from coming in contact with the chemicals inside the apple. Cutting an apple breaks the cells of the apple. Thus the broken cells on the cut surface of the apple are exposed to oxygen in air. There are a series of chemical […]

Filed Under: Biology Tagged With: aerobic oxidation, apple browning, denatured, enzymes, melanin, organelles, pH, phenols, pigment, polyphenol oxidase

Vortex Bottle

By Janice VanCleave

You can create a vortex by stirring a oit of water with a spoon. But a vortex bottle provides the opportunity to investigate different variables. You can construct your own vortex bottle using instructions here:   VORTEX BOTTLE 1. Making the vortex bottle is part of your research. Other things to research would be to read […]

Filed Under: Science Projects Tagged With: science fair project tips, VORTEX

Decoding of the Periodic Table

By Janice VanCleave

Hydrogen is one of the elements on the periodic table. Each element is in a box with its name, symbol and atomic number. Other numbers, such as atomic mass may also be added.

What Do the Numbers on the Periodic Table Mean? The red box is an enlargement of the hydrogen box from the periodic table of elements. The four identified parts for the hydrogen box shown are: 1. H, element symbol:  All elements have a symbol. Some symbols have one letter and some have two letters. The […]

Filed Under: Chemistry

The Age of Radiance

By Janice VanCleave

Shoe Store X-Ray Machine I could  be the girl looking through the eye pieces of this x-ray machine. It seems like only yesterday that with much excitement I looked through an X-ray machine exactly like the one shown in the photo. The machine was in the shoe department and it really did show an X-ray […]

Filed Under: Physics Tagged With: shoe store x-ray, x-ray of feet

What is a Mole?

By Janice VanCleave

A mole is a chemical unit of measure. Dimensional analysis is a method used to convert one  unit of measurement to another. Conversion factors are mathematical tools for converting between units of measurement. The conversion factor 1 ft = 12 inches is used to convert units of feet to units of inches or vise versa. Example: How many […]

Filed Under: Chemistry Tagged With: Avogadro's number, conversion factor, dimensional analysis, mole

A Tale of Seven Elements

By Janice VanCleave

A book about seven elements on the periodic table by Eric Scerri

Sam Lemonick’s review of Eric Serri’s book, “A Tale of 7 Elements” captivates the heart of the book. You will enjoy this review almost as much as you will love Eric’s book. Sam Lemonick  “In 1492, Columbus sailed the ocean blue,” and discovered America. Or rather, he was the first European to reach America, where millions […]

Filed Under: Chemistry

Energy: Radiation

By Janice VanCleave

Electromagnetic radiation (EMR) is a stream of photons each traveling at the speed of light. Photons are massless bundles of light energy. The higher the energy of photons the more they behave as particles and can be harmful. The symbol shown with what looks like three blades of a fan notifies you that the radiation […]

Filed Under: Energy, Physics Tagged With: EMR, photons, radiation

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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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