Articles

    Penny Popper

    Kids, this column is for you really young ones, ages 5-7 or so. It is about something called surface tension. We will concentrate on water here, because water molecules really like to stick together. An electrostatic-like force attracts them. When they are near each other, they will try very hard to...

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    Icy Explorations

    Kids, let's try to take advantage of the cold weather here in the Midwest. You know that a backyard pond or lake in winter can be a magical place. It is also filled with many scientific wonders. These bodies of water freeze from the top down, and they do so for two reasons. The top is closer to the ...

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    Christmas Chemistry

    Kids, did you ever think of the Christmas tree as a chemical kind of plant? The wood of most any tree can be separated into two major components. They can be thought of as the "hard" and "soft" parts, which are the fiber (hard) parts and the oils and other soluble parts (soft). The hard or structura...

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    Chemistry & Art - Frescoes

    Kids, a fun event called National Chemistry Week will take place this year Nov. 4-10, 2001. Check other articles in the Bulletin and the Chicago Section web page for details in the Chicago area. The theme this year is "Celebrating Chemistry & Art". One of the related activities suggested on the ...

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    An Elementary Game

    Kids, did you ever think about building your own collection of chemical elements? This can be a fun science project and a great "Show & Tell" classroom session. Look back at our previous article on the periodic table (June 1998) and also at http://pearl1.lanl.gov/periodic/ for great sites that d...

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    Proteins and Hard Boiled Eggs

    Kids, did you ever wonder why eggs get hard when you boil them? It’s because they have lots of protein, especially in the egg whites. Here’s how it works. Protein is a polymer chain of amino acids that is flexible enough to fold up on itself in different ways based on their chemistry. It...

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    A Magnesium Marvel

    Kids, have you ever wondered how those trick birthday candles work ­ the ones that keep re-lighting themselves after they are blown out? All you need for this month¹s experiment is a regular birthday candle, a "trick" birthday candle, matches, and an adult partner to light the candles for y...

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    A Medical Membrane Mimic

    Kids, have you ever heard of kidney dialysis? Kidneys are essential for keeping the proper chemical balance in our blood. They perform a wonderful balancing act of filtration and osmosis that is not only essential to life, but is extremely complicated. In very simple terms, the kidneys filter blood ...

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    ChemLinks for Kids

    Kids, in this column we¹ll put together some of our favorite internet sites for chemistry experiments and learning activities at the elementary school level. This is so that you have something to do in between our monthly columns! One of our favorite resources through the years has been the Ame...

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    Fizzy Fun

    Kids, baking soda and/or baking powder are added to cooking batters to produce the gas bubbles that make cakes and muffins rise (this is called "leavening"). It is caused by the action of baking soda plus a liquid acid. Baking soda is sodium bicarbonate (NaHCO3). When mixed with a liquid acid it rel...

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