• Bellwork:
• On bellwork write “Set-Up
Lab Notes”
• Set up “Cornell Notes”
Handout (the one you just
picked up on the front table)
exactly as you see in the
diagram to the right. Add
color. Rulers are in the Aggie
Cabinet
Essential How are molecules joined together and broken apart?
Question:
Question
Column
L1 –
Add Water
Add Borax
Prediction:
Prediction:
Prediction:
Hypothesis:
Hypothesis:
Hypothesis:
Observation:
Observation:
Observation:
Diagram:
Diagram:
Diagram:
L3 –
• By Tomorrow – Turn in rubric
with name and period on it.
• It might rain tomorrow – be
prepared for it.
Glue + Food
Coloring
L2 –
• Get goggles and aprons.
• Essays due tonight at
11:59PM
Page _________
Gloop Lab
Summary -
Standard
B.9A – Compare the structure and
functions of different types of
biomolecules.
Essential Question
How are molecules joined together and
broken apart?
Reinforcing Hydrolysis and
Dehydration Synthesis
Page 14
(Title this page “Gloop Lab”)
Compare and contrast hydrolysis and
dehydration synthesis. Your answer
must be exactly 33 words.
Monomer / Polymer
Kinesthetic Activity
Gloop Lab
Directions for making “gloop”
*Decide on ONE “Materials Person” per table, this is the
ONLY person allowed to leave the lab group*
Column – Glue + Food Coloring
Column – Add Water
Column – Add Borax Solution
1. Predict – same as
partner.
2. Hypothesis –
same as partner.
3. Observation
1.
1.
2.
3.
A.
B.
In your beaker,
add 10 ml of
glue.
Add 2-4 drops of
food coloring to
the glue and stir
with wooden
stirrer.
2.
3.
4.
Predict – same as
partner.
Hypothesis – same as
partner.
Observation
A. Add 10mL of water
(from the sink) to
the beaker using the
marked graduated
cylinder and mix
thoroughly.
Draw a Diagram
4.
Predict – same as partner.
Hypothesis – same as partner.
Observation
A. Add 4 drops periodically
(at a time) of borax
solution to the beaker
using the plastic pipette
and mix thoroughly until
only a small amount of
water is left.
B. Rinse gloop with water
and put in baggie.
Draw a Diagram
4. Draw a Diagram
Clean Up and Baggies (label with name and period and put in bin).
Page
_________
Gloop
Lab
Questions
Level 1 – Describe…….
Level 2 – Explain………
Level 3 – Predict……….
Summary
must include these wordspolymer
hydrolysis
dehydration synthesis
Essential
Question:
Question
Column
L1 –
Glue + Food
Coloring
Add Water
Add Borax
Prediction:
Prediction:
Prediction:
Hypothesis:
Hypothesis:
Hypothesis:
Observation:
Observation:
Observation:
Diagram:
Diagram:
Diagram:
L2 –
L3 –
Summary -
The glue contains a polymer called polyvinyl acetate
resin. We changed the polymer’s behaviors twice in
this activity; once when we added water and the
second time when we added borax.
Copy and answer the following questions (on
back of lab notes)
1. When we added water, what process was occurring;
dehydration synthesis or hydrolysis? Describe the glue
after water was added.
2. When we added borax, what process was occurring;
dehydration synthesis or hydrolysis? Describe the glue
after borax was added.