mock rock investigation lesson #6

8/13/2019 Mock Rock Investigation Lesson #6

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Jeff Rost

Science--Mock Rock InvestigationLesson 6Thursday, Septemer !th, "#$%

This is the si&th 'esson in an investigative science unit over rocks, minera's, and geo'ogy()rior to this 'esson, students have oserved mock rocks *made y me+, roken them apart

to oserve properties, mined the minera's and separated.c'assified them, put some of

the minera's in a via' of /ater to separate over severa' days, and fina''y, they poured the/ater from the via' into an evaporating dish *in the previous 'esson+ and have a''o/ed the

/ater to evaporate to investigate if there /ere e'ements that disso'ved in the /ater(

)urpose Statement0 I /i'' identify and descrie crysta's that formed as a resu't ofevaporation and I /i'' identify and record a'' mock minera's used(

1ommon 1ore State Standard0 2rades %-! 3arth and Space0 4nderstand and app'y

kno/'edge of properties and uses of earth materia's(

Materia's0 5oss evaporating dishes from previous 'esson, 1rysta' Identification ey *oneper partnership+, penci's, 3arth Materia's 7oteook, Mimeo, pro8ector, and hand 'enses(

$( I /i'' start y asking students to get their 3arth Materia's noteook out of their

desk to ease transitions once they have materia's for their investigation(

"( I /i'' start discussion y /riting the vocau'ary that /e have 'earned thus far in

the unit on the oard and asking students /hat each /ord means( These /ords/i'' inc'ude geo'ogy, geo'ogist, property, disso've, rock, and minera'(

%( I /i'' ask students to reca'' that /e 'et our mock rocks sit in a via' overnight andsome materia's disso'ved( I /i'' have a sma'' see-through cup and a pinch of sa'tat the front of the room to sho/ ho/ fast some materia's disso've in /ater( I /i''

pour the sa't in the /ater and /a'k around the room as I stir to sho/ students that

it often does not take much time for so'ids to disso've(a( I /i'' provide each pod /ith a sma'' cup of /ater and sa't so that they may

investigate pouring the sa't into the /ater and ho/ fast it disso'ves( I /i''

encourage students to start out /ith a sma'' amount, and then gradua''y

add more if they /ish to see if the sa't easi'y disso'ves /hen more isadded(

9( I /i'' pu'' the c'ass together to discuss our oservations( I /i'' ask students to

dra/ comparisons et/een the sa't /ater and rea' 'ife e&periences( :epending onstudent responses, I /i'' provide the e&'e of mi&ing oo'-;id and sugar /ith

/ater *eing too s/eet or not s/eet enough+(

!( I /i'' then ask students to reca'' /hat /e did during our previous investigation( I/i'' 'ead the discussion to inc'ude reaking mock rocks up, putting them in via's

to separate the ingredients, pouring the 'i


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6( I /i'' then e&p'ain to students that most of the /ater in their dishes has evaporated

comp'ete'y and they are ready to investigate( 5or teams that added too much /ater

to their dishes 'ast 'esson and not a'' of it has evaporated, I /i'' p'ace their traysoutside in the sun prior to this 'esson to e&pedite the process so they may

investigate their dishes fu''y(

=( I /i'' ask one 'earning partner from each group to retrieve their dish from the trayas /e'' as a hand 'ens( I /i'' instruct them to 'ook at /hat they see in their dishes

*using a hand 'ens+ and dra/ it on page 6 of their 3arth Materia's noteook *using

penci'+( I /i'' give these instructions prior to re'easing them, and they /i'' e onthe pro8ector(

>( ;s students are oserving and dra/ing in their noteooks, I /i'' /a'k around the

room to monitor student progress( I /i'' engage /ith them aout /hat they see, as

/e'' as ensure they do not have


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rea' rocks(

$=( I /i'' ask students to fi'' out the 3&it S'ip prior to c'eaning up for science( ;fter I

have handed out the s'ips, I /i'' /a'k around the room and monitor studentprogress( I /i'' engage /ith students aout /hat they sa/, and provide prompts

for those /ho might need further support(

$>( The e&it s'ip says, ; student /rote in her 8ourna', D; rock is 'ike a choco'ate chipcookie(E Chat do you think she meant /hen she /rote that sentenceB I /i'' ask

the students /hat their thoughts are, and /i'' ask them if there is any /ay /e

cou'd find out /hat she meant( I /i'' then pass out a choco'ate chip cookie to eachstudent */ith a paper to/e'+ and /i'' ask each student to reak their cookie up in

order to ans/er the

mock rock investigation lesson #6

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