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Click Beetles

By Janice VanCleave

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Filed Under: Biology, General Science

Scientific Method

By Janice VanCleave

Notes from Janice’s Desk I read a review about author Rebecca Stead and it brought back memories of  a public speaking seminar I attended.  The review as well as the seminar pointed out that the newspaper is a great place to find topics for novels and/or speaches. Other similaritie of the two are: Prepare yourself […]

Filed Under: General Science

Slaves to the Clock

By Janice VanCleave

Notes from Janice’s Desk I wake during the night to go to the bathroom (I drink lots of liquids). Generally I go back to sleep, but today the clock said 5:30 am. I decided to stay up even though I felt a bit sleepy.  This decision cranked up my brain and as usual it started […]

Filed Under: Biology, General Science

Archeology

By Janice VanCleave

Notes from Janice’s Desk Archeology is the study of  human culture by analyzing stuff that people left behind. Junk from garbage dumps of the past are treasured artifacts today. From these finding, scientists piece together how they think the people lived, worked, and played. I wonder what archaeologists in the far future will find in […]

Filed Under: Chemistry, Earth Science, General Science

II. Pressure: Density

By Janice VanCleave

Notes from Janice’s Desk Writing about air pressure reminds me of  bumper cars at an amusement part in Germany. It was one those traveling groups who had set up their rides in a field. There were no rules, and American soldiers from a nearby Army base were demonstrating how not to drive the cars. Check […]

Filed Under: General Science

Ratios

By Janice VanCleave

A ratio is the  relationship between two amounts.  A ratio can be expressed as a fraction. What comes to mind is icing cupcakes. If I use one cup of vanilla cake icing to ice 4 cupcakes, and one cup of chocolate icing to ice 2 cup cakes, which cup cakes have more icing on them, […]

Filed Under: General Science, Physics

Inertia

By Janice VanCleave

What is the difference between these science terms: inertia, mass, weight? Inertia measures how difficult it is to move an object. Mass measures how much material is in an object. Weight measures the force of gravity acting on an object. Often times referred to how heavy an object is. Problem: Compare Freddie (a small stuffed toy) […]

Filed Under: Chemistry, General Science, Physics

Sparklers

By Janice VanCleave

We in the United States are making preparations for a July 4th celebration. This always brings thoughts of family picnics followed by firework displays. In some areas fireworks are not allowed except by professionals who prepare brilliant, colorful displays. While in other places, even small children are allowed to participate in this pyrotechnic event. If […]

Filed Under: General Science

Mnemonics

By Janice VanCleave

The human brain can more easily remember meaningful information. This explains why kids can sing every word of a song they like but have a difficult time learning information for a math or science test. But then there are lots of things we might be interested in and cannot seem to have instant recall on […]

Filed Under: Biology, General Science

Density

By Janice VanCleave

You can easily describe and/or calculate the density of substances if you understand that density is nothing more than a ratio comparing two quantities. The things being counted may vary but all densities are ratios that compare the quantity of a substance in a specific volume (or area). Densities  can be demonstrated using paperclips and […]

Filed Under: Earth Science, General Science, Physics

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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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