Day Forty Two Overview

Day Forty Two Overview

- as a class we went over the homework assignment that dealt with using the solubility curves

- there was some initial confusion because there is quite a bit to read and be familiar with in one of these graphs but after going over each problem the students seemed much more comfortable

- after going over the homework we started working on a lab that dealt with the concept of solubility, something we had taken notes on the class period prior

Alka Seltzer Lab

- in class we started the lab and wrote up a procedure for what the students would work on the next day in class

- after the early stages of the lab the students took notes on the last two kinds of mixtures, suspensions and colloids

Homework

- Alka Seltzer Lab is due Friday 12/14

- Facebook project is due Friday 12/21

Science News

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New Gizmo Sign On

Ms. Krueger has graciously signed us up for another gizmo trial, that those of you who are still late with your labs can use.

id: victorjuniorhighschool
password: krueger

Day Forty One

Day Forty One

- warmed up with the question "If you were at home, how would you make something dissolve quicker than normal?  What would you do?"
- students came up with great answers including ...
     - heat the liquid
     - break up pieces of what you dissolving
     - add pressure
- we took notes on the specifics of solutions and also solubility
- introduced some new vocabulary
     - solute
     - solvent
     - solubility
     - saturated
     - unsaturated
- showed the students solubility curves and how to use them to predict how much of a solute will dissolve in water (the solvent) at various temperatures

HW
- finish solubility graph worksheet (it will be checked next class)
Solubility Graph HW

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Day Forty Overview

Day Forty Overview

- warmed up with the question "Why do we not just have elements everywhere?  Isn't everything we need made of elements?  Why would we need anything else?"
- students gave great answers, mostly dealing with the concept that even though everything is made of elements we mostly use those elements as "building blocks" for the molecules that are used in life
- we then took notes on what a compound is and why they are important
- we listed some important compounds
- compounds must ...
     - be chemically combined
     - can only be separated chemically
     - have unique properties from the elements that form them

Compounds Video

HW

- make up any late work
- begin thinking about your favorite element, start to do some research that you would use in a future project about that favorite element

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Day Thirty Nine Overview

Day Thirty Nine Overview

- worked on a marshmallow atom activity
- reinforced how to find protons, neutrons, and electrons
- students had to interpret a model marshmallow atom and make their own model

Marshmallow Atoms

- after making their atoms the students worked on transferring their notes from the first day of the unit into their note packets

HW
- make up any late work

Science News
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Day Thirty Eight Overview

Day Thirty Eight Overview

- warmed up with a challenge to the student where I asked "how many atoms are in one grain of salt?"
     - students were amazed by the number, 120,000,000,000,000,000!
- the students watched a TedTalk video which explained just how small an atom is through the use of analogies

Just How Small is an Atom?

- students took notes on what the information in a periodic table square actually means

Element Atomic Info Notes

- students were then able to take a square on the periodic table and figure out exactly how many protons, neutrons, and electrons are in one atom of that elements
     - they were able to do this by using the atomic number and the atomic mass
- students practiced this skill with a few elements on the periodic table
- the students then used the information they had determined, and applied it to drawing pictures of atoms of specific elements

HW
- draw a picture of one atom of an element with an atomic number greater than 10
- it will be checked the next day in class

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Day Thirty Seven Overview

Day Thirty Seven Overview

- took 10 minutes or so to clean out binders
     - we kept both previous note packets and our vocab sheet in our binders
- began taking notes on the Introduction to Elements

Elements, Compounds, and Mixtures Note Packet

     - we did not have note packets in yet so we took notes on a separate sheet of paper
- what is a metal, non-metal, and metalloid
- gave the students some examples of each

HW
- make up any late work (gizmos, stories, tests/quizzes)

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