***food, sign out time
Bellwork, 9/7
At the top of this bellwork, write
Tuesday 9/6
1. Do you think your brine shrimp
hatched?
2. Do you think more hatched in the
control or test beaker?
3. What is the independent variable in
your experiment?
4. Why do you think I am showing the
picture on the right? Does this sort of
thing actually happen in real life?
Bellwork format
•
•
•
You can make up bellwork during tutorial for full credit!
Multiple bellworks on one page
At the top right of your page write:
– First name
– Last Name
– Period
•
•
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Notice:
paper•
Please put day of the week and date in the left margin.
Draw a line to separate bellworks
I will stamp the right side
First & Last Name
Staple all pages together!
Period
scraps
removed Wednesday 1.
from edge, 9/67
2.
this makes
3.
Mr. Horton
happy :)
4.
_________________________________________________________
Pass back all the things!
• Including progress reports
Brine shrimp lab went well!
• Make sure your label has the following
Initials of you and your group members
Test or Control
Your Period
• When you use soap, you only need a tiny drop!
• Some people added quite a lot of their test variable
Data table
Lab Rules
• Sign the clipboard with which lab station you are
at
• No food, gum, beverages other than water
• Stay at your lab station until we return to this
classroom
• Clean your lab station and return all equipment
• Please do not sit on counters, you might sit in
acid or poison!
• Lose points for messy lab station
Stay at your lab stations until we return to
• Let all eggs settle to the bottom.
• Start with Control Beaker, suck up 2 droppers full of saltwater &
shrimp. Squirt into dish.
• Count all hatched or hatching shrimp. Record in Data Table. Empty
dish in trash.
• Continue to count a total of 3 dishes for the Control. Record and
AVERAGE the 3 numbers.
• Use same procedure for Test Beaker, count 3 dishes and AVERAGE
the 3 numbers. Record all counts and average in Data Table.
• Be consistent in the way you count! You are the scientist!
• Clean Up: Rinse out eyedropper & dish, put on paper towel.
• Leave station neat, as you found it. Points will be deducted for
messy lab statiosn
Brine shrimp Lab Report
Make a sketch of:
• Brine shrimp egg
• Brine shrimp that has hatched
• Brine shrimp that is in the process of
hatching (if you can find one!)
Macromolecules!
• What are they?
Macro = big
Molecule = more than one atom bonded
together
Macromolecules
• Are essential to life
• Are chains of small building blocks
• 4 types:
– Carbohydrates
– Fats
– Proteins
– Nucleic Acids (DNA and RNA)
On the white board
1) Tell me everything you know about
carbohydrates
2) Draw what a carbohydrate molecule looks
like
3) What types of foods have carbohydrates?
Macromolecules!
• http://www.youtube.com/watch?v=fvBO3T
qJ6FE