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I believe that a company named Scholastics, Inc delivered educational material to those kids that subscribed.  I didn't have any money to subscribe so I never really got into its subjects.  

However, somewhere in my travels I picked up two copies of "101 Things You Need to Know," published by Scholastics.  I did know 98 of these things.

Here is what I didn't know:

01.  Toothpaste

Toothpaste is made with limestone, a sedimentary rock. 

My Colgate toothpaste container doesn't say anything about limestone.  Here are its ingredients:

Water

Sorbitol

Hydrated Silica

Glycerin

PEG-12

Tetrasodium Pyrophosphate

Flavor

Sodium Lauryl Sulfate

Zinc Phosphate

Cellulose Gum

Sodium Citrate

Microcrystalline Cellulose

Sodium Saccharin

Cocamidopropy Betaine

Xanthan Gum

Citric Acid

Sucralose

Titanium Dioxide

Just think about this when you are brushing your teeth at bedtime.

 

02.  Summer Heat Determination

I think we actually did this exercise in the old days, but I had forgotten.  It's very simple:

Count the cricket chirps in 15 seconds and add 39. The result should be the current Fahrenheit temperature.

But I have an even simpler exercise:

"Alexa, what's the temperature!"

03.  King Wolfgang

Mozart supposedly created an imaginary kingdom called "Back."  He appointed himself king and had a servant make maps of cities and villages.

Well, that may be so, but I can't find anything about it.  If someone knows about this, would you please let me know?

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