To be successful today, [YOU] need: pen/pencil, binder, do
now half-sheet, notes page, chromebook
Table of Contents:
5
4
The Digestive System Lab
Notes
YOU HAVE 3 MINUTES TO GET YOUR MATERIALS, FIND YOUR SEAT, AND
START YOUR DO NOW!!
DO NOW (on half sheet):
Sitting at YOUR assigned seat…
SILENTLY and INDEPENDENTLY…
COMPLETE your do now...
Thursday,
24 September 2015
Agenda
1. Do Now, LEQ, WOD
2. Guided notes
3. Demonstrations
4. Lab experiment
5. Exit Ticket
Announcements
Progress report and homework
due TOMORROW (aka
Friday!). Worth 50 points.
LEQ
What observations would
indicate a chemical
change?
WOD: Volume
The amount of space an
object takes up, measured
in mL or cm³
Chemical vs. Physical Changes
There are 5 signs of a chemical change.
1.
2.
3.
4.
5.
Production of LIGHT
Production of HEAT
Formation of a GAS
Change in COLOR
Formation of a PRECIPITATE
• A precipitate is a solid formed in a
solution.
On your paper, complete the
following table during and after the
demonstration.
→ Include at least 1 observation.
Glo-Stick
Observation
Physical or
Chemical??
Rubbing
Alcohol
Bleach and
Coca-Cola
Check for Understanding…
Which was an example of a PHYSICAL
CHANGE?
Which was an example of a CHEMICAL
CHANGE?
Lab Experiment - Physical and
chemical changes in the human
digestive system
Materials: 2 pieces of bread, eye dropper
with iodine, wax paper
DIRECTIONS: Follow each procedure in
order, starting with 1 and ending with
10.
Lab Experiment - Physical and
chemical changes in the human
digestive system
PROCEDURE:
1. Draw a line down the
middle of the wax
paper.
2. Label the left side “Not
Chewed” and the right
side “Chewed”.
Lab Experiment - Physical and
chemical changes in the human
digestive system
PROCEDURE:
EXPECTATIONS
Sitting in your assigned seat…
Level 0 or Level 1 voices…
Steps 3 - 10. Follow
directions and complete
observations.
Complete lab...
Melting Ice
Chopping Wood
Mixing Salt and Water
Breaking Glass
Burning Wood
Melting Iron
Melting Ice Cream on a hot day
Digesting an apple
Boiling Water