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Introducing atoms, elements, molecules and compounds
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Day 5: October 6/7Day 5: October 6/7
Objective: SWBAT define and diagram Objective: SWBAT define and diagram atoms, elements, molecules and atoms, elements, molecules and compounds.compounds.
Homework: Complete Independent Homework: Complete Independent Practice on pg 31 wkshtPractice on pg 31 wksht
Warm up: Jupiter has no solid surface. Warm up: Jupiter has no solid surface. What do you think it is made of?What do you think it is made of?Hydrogen and helium, which are elementsHydrogen and helium, which are elements
AgendaAgenda
Intro and guided practice – 20 minutesIntro and guided practice – 20 minutesGroups: Science Article – 50 minutesGroups: Science Article – 50 minutesGroup presentations -- 10 minutesGroup presentations -- 10 minutes
Independent Practice – if done earlyIndependent Practice – if done early
Let’s rollLet’s roll
Everything is made of Everything is made of parts, and the parts parts, and the parts have names. The have names. The parts together give parts together give the object its identity.the object its identity.
Think about a deck of Think about a deck of cardscards
Random pieceof paper
Random pieceof paper
This paperIs a card
This paperIs a card
The card isone of two
colors
The card isone of two
colors
14 cards puttogether make
a suit
14 cards puttogether make
a suit
Four suitsput togetherFour suits
put together
Deck of cardsDeck of cards
The card is oneof 14 values
The card is oneof 14 values
Page 31Page 31
Title: Atoms, Elements, Molecules and Title: Atoms, Elements, Molecules and CompoundsCompounds
(you will need to make questions and a (you will need to make questions and a summary AT HOME and it will be summary AT HOME and it will be checked)checked)
AtomAtom
Smallest unit of matterSmallest unit of matterCan not be dividedCan not be dividedContain electrons, neutrons and protonsContain electrons, neutrons and protons
ElementElement
A particular type of atomA particular type of atomDetermined by the number of PROTONS Determined by the number of PROTONS
(atomic number)(atomic number)Can not be broken down into another Can not be broken down into another
substancesubstance
B R
MoleculeMolecule
Two or more ATOMS Two or more ATOMS In a specific arrangementIn a specific arrangementCan be broken down into individual atomsCan be broken down into individual atoms
B R
B
R
B
R
BRYou can draw these in a straight line for your
notes like R – R – B
NOT the same molecule!!!
CompoundCompound
Two or more ELEMENTSTwo or more ELEMENTS In a fixed ratioIn a fixed ratioCan be broken down into molecules or Can be broken down into molecules or
elementselements
B R
B
R
B
R
BR
Same compoundR2B
Guided PracticeGuided Practice
Draw one atom of “Blue”Draw one atom of “Blue”
Draw one molecule of “Green”Draw one molecule of “Green”
B
GG
Guided PracticeGuided Practice
What would a molecule of “Blue – Red – What would a molecule of “Blue – Red – Blue” look like?Blue” look like?only thisonly this
What would a compound BWhat would a compound B22R look like?R look like?
B R B B RB
BR B
B R B
Science in the NewsScience in the News
You will work in groups to read and You will work in groups to read and process the article about mercury polluting process the article about mercury polluting the atmospherethe atmosphere
Framing questionsFraming questions
What qualities of scientific investigations are What qualities of scientific investigations are revealed in the article? revealed in the article?
What questions come to mind about the What questions come to mind about the investigation? investigation?
What evidence supports the new scientific ideas What evidence supports the new scientific ideas presented? presented?
What evidence or supporting arguments seem to What evidence or supporting arguments seem to be missing? be missing?
What kinds of data are discussed or presented What kinds of data are discussed or presented (e.g., measurements, tables, graphs)? (e.g., measurements, tables, graphs)?
HintsHints
Remember, the point of investigating this Remember, the point of investigating this is to focus on is to focus on mercurymercury
If you’re group is not talking about If you’re group is not talking about mercury, then you’re not on the right topicsmercury, then you’re not on the right topics
Outcomes from groupOutcomes from group Poster depicting CFL use and whether or not it is Poster depicting CFL use and whether or not it is
a good thing in Missouri. a good thing in Missouri. Make an advertisement type poster (like a stop Make an advertisement type poster (like a stop
smoking poster)smoking poster) You should summarize on the poster why you You should summarize on the poster why you
are taking a certain position. are taking a certain position. Remember, base your opinion on the issue Remember, base your opinion on the issue
surrounding mercury pollutionsurrounding mercury pollution
Any of the group members can be called on to Any of the group members can be called on to presentpresent
Poster assignmentPoster assignment
Would you recommend a friend to use Would you recommend a friend to use CFL bulbs? Why or why not based on CFL bulbs? Why or why not based on evidence from the article about mercury evidence from the article about mercury pollution.pollution.
Create an advertisement-style posterCreate an advertisement-style poster
Independent PracticeIndependent Practice
Start nowStart nowWork independentlyWork independentlyUse the real elementsUse the real elementsCheck periodic table for correct symbolsCheck periodic table for correct symbols