Hon Chemistry 2-9-21 and 2-12-21 Intro to Atomic Theory

HON CHEMISTRY: For such a short lesson, it sure did take us a while to finish! Here’s the last of our discussion of modern atomic theory vs. Dalton’s atomic theory – well, actually a vodcast that has everything in one place. Your homework is only the homework that goes with this lesson. When we get back to school, we’ll do the Activity: Model of an Atom.

So how do you feel about being made from earth, air, water, and fire? Here’s the intro we did on how we ended up with the atomic theory. Had you ever heard of Lavosier, Proust, and Dalton?

Pretty impressive little theory that Dalton came up with, huh? Were you surprised as you made comparisons with the Modern Atomic Theory? Could you now take it a step further and show connections between the three laws we discussed today and Dalton’s atomic theory?

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14 thoughts on “Hon Chemistry 2-9-21 and 2-12-21 Intro to Atomic Theory

  1. Scientists have been stumped for quite literally decades about why starfish have been dying- conducting various studies- all ending in results leaving scientists in tears (Just kidding, they just did not get the results they wanted). However, in a recent study, it was discovered that microbes would essentially “hog” the oxygen and cause a depletion that would prevent the starfish from living.

  2. Scientist using a space station had a clear view of how a strange blue lighting, called blue jet, is formed. The blue jet is strange in the way of the lighting goes from the cloud to the stratosphere.

  3. A team of environmental scientists studied the effect of tiny cotton microfibers that come from jeans in the washer and flow out to various bodies of water, polluting the environment and endangering many species of underwater creatures. From a series of studies, they deduced that a valid solution for this predicament would be to wash your jeans less often, maybe only once a month.

  4. A team of scientists determined that some spiders use sound, they only strike at low frequency, instead of sight to capture prey, especially airborne prey. They discovered this by using electrons implanted in the spiders head and used different variations of frequencies to see their reactions. This is pretty monumental since scientists believed that spiders could not hear until recently.

  5. Sea stars are experiencing mass casualties as of late. After some investigation and many tests, scientists have determined that bacteria called copiotrophs are to blame. These bacteria surround the starfish and remove the oxygen from the water. Because the sea star breathes through skin gills, it cannot take in oxygen when the bacteria surround it, so it suffocates and dies, turning into a pile of organic matter.

  6. A research team did a study on the Australian stinging tree by taking its individual chemicals and testing small doses of each on a mouse’s paw to see which ones caused pain. After discovering which components caused the mouse to react, they examined them further and saw that the peptides inside contained the same arrangement of amino acids as the venom proteins in spiders and cone snails. They also found that the reason why coming in contact with the tree hurts so badly is because these peptides affect sodium channels that deliver pain signals to the rest of the body.

  7. 2 satellites from different space organizations were launched about 2 years apart, with no intention of aligning, which they did. Their alignment allowed scientist to take pictures of the sun, as well as get close up readings from the sun at the same time, which had never been done before.

  8. Scientists uave discovered that naked mole-rats have different dialects within each colony to be able to differentiate between friend or foe. This mechanism gives them many advantages when it comes to survival.

  9. Scientists have been able to put tiny microbes in the brains of people that can be used for many good things like detecting seizures before they happen and controlling prosthetic limbs. The main concern is the privacy of the people because it might also have the ability to read their minds.

  10. For the past decade, researchers have been tracking ocean floor temperatures using seafloor thermometers and sensors placed in the Atlantic Ocean and some in the Argentine Basin, off the coast of Uruguay. Studies have shown an increase of 0.02 degrees Celsius in the Atlantic and other shocking increases in certain places in the Argentine Basin. Reasons behind the temperature rises remain unknown, whether it be human or nature variation, but one definite thing is that a large amount of heat must have been generated to have such an increase at that depth.

  11. Lately, scientists have made a polymer that can increase the efficiency of small flexible solar technology. This coupled with dyes could increase the power of solar technology by at least 24 percent. They plan on using this technology in space as well as to weave it into clothing and could possibly charge your hand-held devices while they are in your pocket.

  12. In the last decade, there has been a drastic increase in deaths among starfish. A team of biologists investigated the culprit behind this matter, and they found that the cause of this is from bacteria called copiotrophs. This species of bacteria consumes a great amount of nutrients and oxygen. As a result, when starfish live in an environment with them, the copiotrophs deplete all of their surrounding oxygen, leaving the starfish to suffocate. This leads to their degradation into “goo”

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