Atomic structure and periodic table ; Sixth grade science ; Home school

Periodic table ; Physical and Chemical change ; Sixth grade science ; Home school

Its hard to believe that January 2021 is almost over... time is seeming to fly. Its been about 5 months since I’ve started homeschooling and I think its going pretty well. We had our second semester test this month, and I’m very glad it’s over. Very ambitious of me, but anyways. This year science interested me the most out of the 5 subjects I’m taking. We learned about atomic structures; compound, periodic tables, and  many more. This information was mostly from the book “Everything you need to know to ace science in one big fat notebook”

Physical and Chemical change:

As you guys know, matter is anything that has mass and takes up space. Atoms are the smallest units of matter (and yet they can still be broken apart). Atoms are made of three smaller particles: Protons, neutrons and electrons. The protons and neutrons stick together in the middle of an atom to make a nucleus. Electrons circle around the nucleus. 

Looks, smells, taste, and feelings are all physical properties. Physical properties are easy to classify thru these characteristics: Malleability, Magnetism, Boiling point and Solubility. Malleability defines how easily an object can be flattened or shaped. Magnetism is when something is either magnetic or not. Boiling point is when something boils or melt. And solubility is how easily something takes in another substance. Physical change is any change that has something to do with the physical properties of matter. Like water, for example. If you take a block of ice and let it melt, the substance itself hasn’t changed. Only the state did. 

Chemical properties are abilities of something to undergo different chemical changes. Flammability and reactivity are some examples or chemical properties. Flammability is how easily something lights on fire and reactivity is how reactive to something. When any these chemical properties happen, it has gone through a chemical change. Burning a piece of wood is an example of chemical change.  

Periodic table:

The periodic table is a chart with all the discovered elements we know. An element is a type of atom; and an atom is the smallest unit of matter. There is about 118 elements; each made of different atoms. Every element is given a chemical symbol, which are the letter(s) representing an element. An element can have one or two chemical symbol, like H for hydrogen or Cu for copper. If an element has two chemical symbol, than the second letter will always be a lower case. Each squares has information about the element. The chemical symbol, written in big letters, and the element name which is written in smaller letters bellow the chemical symbol. Above the chemical symbol there is an atomic number which shows the number of protons an atom has. Below the element name, is the atomic mass, which is the average mass of the atom of that element.  

A chemical formula is a compound’s recipe and describes the ingredients of the compound. A chemical compound is written with a chemical symbol (one or two letter) and the a number defining the number of atoms. Like sugar, for example: 12 carbon, 22 hydrogen, and 11 oxygen atoms can we written as C12H22O11 

Science reminds me of life: Mixing different things to make different things. Our life depends on what we mix with ourselves.