Separating Salt out of Water

Separating Salt out of Water Salt (NaCl) is a natural mineral made up of white cube-shaped crystals composed of two elements, sodium, and chlorine. It is translucent, colorless, odorless (officially, though we think you can smell the freshness of the sea in one of our boxes) and has a distinctive and characteristic taste. Salt occurs naturally in many parts of […]

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Elephant’s Toothpaste

Elephant’s toothpaste Today I’m going to do this common experiment that is used in chemistry classes called the elephant’s toothpaste. Elephant’s toothpaste is a foamy substance caused by the rapid decomposition of hydrogen peroxide. This is often used for classroom demonstrations because it requires only a small number of ingredients and makes a “volcano of foam”. Things you’ll need: a plastic container (as shown […]

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The Silver Tree

The Silver Tree As said on my post (it finally came 2) the silver nitrate is only 10 grams and it’s about $20. 10 grams is a little amount and it is very expensive, so I hope I don’t make any mistakes. The classic silver tree demonstration! Very simple to set up and perform, it’s great to introduce kids to […]

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The Sediment of Lead (II) Nitrate

The Sediment of Lead (II) Nitrate Today, I’m going to do a common experiment about the sediment of Lead (II) Nitrate. This is a very quick demonstration showing that two solids can react together. White lead nitrate and white potassium iodide react to make yellow lead iodide. I added 5 grams of each chemical into 95ml  of water so I could have 5 % of each. I pour 10ml of […]

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Why can’t Chickens Fly?

Why can’t Chickens Fly? Most chicken breeds are still able to fly short distances. For example, flying up into a tree (that’s where they would naturally roost), or to escape a predator. They certainly are not good at flying, though. There are two reasons for that. 1. Ancestry Chickens were bred from a wild species call the red jungle fowl. These jungle fowl are a little more adept at flying than chickens are now, but they are fundamentally more adapted for a ground-based life All of their food is located on the ground, and they have an adapted beak to match. Their feet are adapted for walking, rather than perching. Its wings have become partially vestigial since the survival of an individual no longer relies heavily on flight; instead, natural selection has advanced those ground-oriented traits. So, to recap, chickens are bad at flying because their direct ancestor was bad at flying, because they’re adapted for spending time on the ground. 2. Selective Breeding by Humans Chickens are not a natural species; they were created by breeding the red jungle fowl into a new organism. Since humans were responsible for the gene selection process (“artificial selection”, as opposed to natural selection), chickens were bred not for survivability traits, but to have great big tasty breast muscles. Chickens’ ability to fly has only worsened under human management because no breeder has prioritized that, opting instead for edibility and commercial traits.

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Color Change Chemistry

Color Change Chemistry Change a clear liquid pink, then back to clear again in this impressive experiment. It may seem like magic, but it’s actually the science of PH. Things you’ll need: a beaker, a graduated cylinder, test tube holder, 3 test tubes, pipet, phenolphthalein, sodium carbonate, vinegar, and water. Fill the beaker halfway with water, and set the test […]

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