Sunday, March 19, 2017

Matter - (3/13 - 3/17)

Image Source: https://goo.gl/SbNMUt

Summary:

     Matter is anything that has mass and takes up space. Matter is made up of atoms, which are made up of three particles. These particles are known as protons, electrons and neutrons. Protons and neutrons make up the nucleus (center) of the atom while the electron orbits it. The amount of protons in an atom decides what type or element the atom is. for example, if there is only one proton in an atom, it is a hydrogen atom. The atomic number of an element is how many protons are in the atom and the atomic mass is the sum of protons and neutrons. The amount of neutrons and electrons are usually the same as the protons. If there are electrons taken away, it is called a Cation, which makes the atom charge positive, and if there are electrons added, it is called an Anion which makes the atom charge negative since electrons have a negative charge. A combination of more than one atom is called a molecule, and a compound is made up of two or more different elements.

SP5 - Using Mathematics:

     I used mathematics to calculate out of the 5 identical crowns, the one that was made of pure gold. I was given a situations where King Arthur's crown was missing. His knights gave him 5 identical crowns and I had to find the one that was his. Each crown provided the information of its mass and who retrieved it. All crowns had a volume of 180cm^3. Below crowns provided the densities for common minerals such as gold, which had a density of 18.3. To calculate which crown had that density, I divided the volume by mass and found out which crown had that density. I also used math when calculating the volume of a stack of pennies by using the formula pi x r^2 x h. I also used the water displacement method. I placed the pennies in a 50 millimeter test tube and observed how far the water rose. I subtracted the new level of water by the original level of water to see how much mm the stack of pennies took. 

XCC - Cause and Effect:

     One cause and effect relationship I identified that relates to matter is rain. Rain occurs because the atoms that make liquid separate due to heat and rise into the air. When there is too much of the evaporated liquid in the air, it starts to rain as the liquid it once was. You can test out this relationship by having a pot of water, a boiler or something to heat it up at the bottom, and a plate hovering over the pot. When boiling the pot of water, the water turns into steam and sticks to the plate. After a while/when the water is cooled, the steam turns into water and falls from the plate. This is a good model to test and represent rain in real life. 
     

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