We started to study chemistry this week. That includes matter, atoms, chemistry, elements, periodic table, all that.
Matter is anything that takes up space and has mass. Mass is how much matter something has. Atoms are the smallest things in all of creation. They are like the building blocks of the world.
Matter
Matter is anything that takes up space and has mass. Air is matter. It takes up space in the atmosphere. Electricity is not matter. It does not take up space and you cannot weigh it. Like love! You cannot weigh emotions like love. They do not take up space and they are not matter. A virus that makes you sick is matter. It stuffs up your nose. It makes you sick. It takes up space.
All matter is composed of atoms.
Atoms
Atoms are the building blocks of matter. Atoms are individual. They group together to make everything in this world. Two or more atoms grouped together in called a molecule. Matter is made up of different types of atoms. You and I are only made up of about 6 different elements. An element is a pure substance made up of only one type of atom. A pure substance is made up of only one type of molecule. Elements are what makes up the periodic table. Elements are materials like gold, silver, graphite, neon, helium, oxygen, carbon dioxide, these are all examples of elements. Atoms are made up of the three particles, protons, neutrons, and electrons. The proton is the positive charge in the atom, the electron is the negative charge, and the neutron is just neutral. Electromagnetic forces are what hold the particles together to create atoms. The nucleus of the atom holds the protons and neutrons. The electrons live outside in the electron shell. The space in between the electron shell and the nucleus is empty.
How small is the atom?
Well, the atom is really really REALLY small. Imagine an atom exploding to the size of a blueberry. If you shrank yourself down to go inside, you would not be able to see the protons and neutrons inside the nucleus. If you made the blueberry the size of a house, you still wouldn’t be able to see the nucleus. You would have to expand the blueberry to the size of a football stadium. Even then, the nucleus would only be the size of a small marble.
A compound is made of two different types of atoms. All compounds are molecules, but not all molecules are compounds.
Oxygen is a molecule. Carbon dioxide is a compound. An element is a substance that is made up of one type of atom. A pure substance is made up of only one type of molecule. Water is a pure substance. Table salt (sodium chloride) is a pure substance. Salt water (a.k.a. the ocean) is NOT a pure substance.
The properties of matter are mass, volume and density. Mass is how much matter is in the object. (How many atoms.) Volume is how much space an object takes up. The density is hard to define, but is somewhere around the lines of how much stuff is smushed into a given space. Or how much mater stuffed into a certain volume. If you had a post it note, it has mass, volume and density. If you rip it in half, its mass and volume are different, but its density is the same. If you had a post it and smashed up into a ball, its mass, volume, AND density would be different.
S&EP: SP2, using models
I used an online model to help me understand how to find an object’s mass and volume. We used Explorelearning.com to help with the interactives, which were very useful. We found the volume of water, the mass of lightbulbs, and it was like we were in a real laboratory.
XCC: Systems and System Models
In P.E. yesterday, we were doing an excersize. Ten of us were in a circle, and we had a volleyball. We passed around the circle in a pattern. Then, the teacher added balls. He added a football, a baseball, a tennis ball, and even a frisbee. We as a team needed to learn a good system to keep from being overwhelmed.
Explain how this system connects to other systems.
All other systems need to have some sort of cooperation to keep it running right. Everything needs to work together in just the right way for the outcome to be perfect.
- Explain the limits of the system.
A system is not perfect. There are times when you maybe throw the ball too high to catch and everything falls apart. There might be a time where you need to pull a piece, but you don’t know which one and pull the one that makes the tower fall.
- Explain the advantages of thinking of this as a system.
A system advantage is when you find the right system, the operation runs smoothly and you can move on to higher challenges.
Multiplier: I think I was a Learner this week
I think I was a learner because I took lots of notes and worked hard in class. I wasn’t barely coming by, I was trying to go above expectations!
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