BLOCK 4/17 & 4/18 week-5

TOPIC: CREATE BIOPLASTIC SAMPLES OBJ: P3

DO NOW:

EXT: --- DUE DATE: ---

DW:

1b- DUE MONDAY 4/22

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EXIT:CIRCLE-level of understanding of today’s objective

HANDOUTS to PICK-UP:

-3 CREATE BIOPLASTICS-1B TEAM RESEARCH

TURN IN to ABS box:-

SEMINAR 2:-

BEFORE/AFTER SCHOOL:-DW:-----

-CHECK 2a PREP

-REVIEW BIOPLASTIC PROCEDURE

-CREATE BIOPLASTICS

AG

EN

DA

AB

SEN

T

HONORS

DEFINE BIOMASS

PEER REVIEW

PEER REVIEW

PEER REVIEW

DO-NOW: DEFINE the term BIOMASS

3-CREATE bio-plastic samples

-CHECK/HILIGHT the SAMPLE your team was assigned to make.

-Follow instructions exactly to ensure accurate samples

[these will be shared with all groups]

-The recipe BELOW makes 9 SAMPLES.

MATERIALS

-250 mL beaker -balance -hot plate -vinegar

-graduated cylinder[s] -weighing tray -food coloring

-corn starch / tapioca starch / gelatin

-glass stir rod -spoon -beaker tongs -1% glycerol

-6 foil baking cups / 6 petri dish -hot pad

3-CREATE bio-plastic samples

PREP

__1- Gather 6 foil baking cups and 3 petri dishes from FRONT CART.

PROCEDURE

-you must be ACCURATE for correct results

[use EXACT measurements / QUALITY CONTROL]

__1- Using a 400 mL beaker ADD the following in this order

[use your “recipe” for specific amounts].

-water [large graduated cylinder]

-vinegar [large graduated cylinder]

-starch/salt [tray/spoon]

-gelatin 1 pkg = 8g

-1% glycerol [syringe]

-4 drops food coloring

STIR as you ADD ingredients!

__2-Place Beaker on HOT PLATE [level 5]

-Using a stirring rod, gently STIR all materials together. [STIR CONTINUOUSLY]

3-CREATE bio-plastic samples

__3-SLOWLY heat to a GENTLE boil. Do not boil your sample vigorously!

-heat until liquid changes consistency

-as soon as the liquid changes consistency,

-remove from heat and continue stirring.

__4-Using beaker tongs or hot pad, REMOVE from heat.

__5-GENTLY stir to remove any air bubbles.

__6- Quickly POUR your sample EVENLY into SIX baking cups [12g] and 3 petri

dishes [15g]

-you do NOT want any bubbles or foam

__7-PLACE completed samples in designated box.

3-CREATE bio-plastic samples

__8. CLEAN UP [IMMEDIATELY!]

-rinse beaker / stirring rod with soap/water

-set beaker above sink to dry

-rinse graduated cylinders [rinse numerous times-these MUST be clean!]

-set above sink to dry

-replace all materials to designated area

__9. READ INGREDIENT FACTS [back page]

COMPLETE bioplastic background assignment

BIOPLASTIC BACKGROUND

AGENDA

PLACE 2a & ARTICLE on top of binder

COLLABORATIVE GROUP

1-IDENTIFY your ROLE for today [write all roles on purple page]

2-CREATE bio plastic samples

3-CLEAN-UP

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4-TEAM RESEARCH [complete as a team / file front pocket]

not finished? Some class time FRIDAY will be available

[23]

[SCRIBE’s JOB]

EXIT

CIRCLE-level of understanding of today’s objective

Q’s / clarifications-EXIT- COMPLETE PEER REVIEW