• Turn in syllabus, Turn in syllabus, lab safety contract lab safety contract & TMNT lab review& TMNT lab review

• Quiz: Lab SafetyQuiz: Lab Safety

• Class ExpectationsClass Expectations

•Please record Please record today’s schedule & today’s schedule & homework in your homework in your planner planner & answer the & answer the following on your following on your early work sheet early work sheet (IQIA).(IQIA).

•What are 3 safety What are 3 safety rules that you should rules that you should always follow in the always follow in the science lab?science lab?

• NoneNone

09-09-1309-09-13

09-09-1309-09-13

I will contribute to a safe, I will contribute to a safe, respectful, and effective respectful, and effective learning environment.learning environment.

• Finish Class Finish Class ExpectationsExpectations

• Science BinderScience Binder

• Observations & Observations & InferencesInferences

•Please record Please record today’s schedule & today’s schedule & homework in your homework in your planner & answer the planner & answer the following on your following on your early work sheet.early work sheet.

•List 3 observations List 3 observations about the contents of about the contents of our classroom.our classroom.

• NoneNone

09-10-1309-10-13

09-10-1309-10-13

I can explain the difference I can explain the difference between qualitative & between qualitative &

quantitative observations.quantitative observations.

Observation:Observation:An act of noting and recording an event, An act of noting and recording an event, characteristic, behavior, or anything else characteristic, behavior, or anything else detected with an instrument or with the detected with an instrument or with the senses.senses.Qualitative observation:Qualitative observation:An observation made using your 5 senses.An observation made using your 5 senses.[sights, sounds, smells, tastes, & textures][sights, sounds, smells, tastes, & textures]Quantitative observation:Quantitative observation:An observation that is expressed in numbers. An observation that is expressed in numbers. [time, temperature, mass, distance, & volume][time, temperature, mass, distance, & volume]Inference:Inference:A logical conclusion drawn from available A logical conclusion drawn from available evidence and prior knowledge.evidence and prior knowledge.

OREO COOKIE OBSERVATIONS

• ProceduresProcedures •Please record Please record today’s schedule & today’s schedule & homework in your homework in your planner & answer the planner & answer the following on your Do following on your Do Now sheet.Now sheet.

•Explain the Explain the difference between difference between qualitative & qualitative & quantitative quantitative observations.observations.

• NoneNone

09-11-1309-11-13

09-11-1309-11-13

I can write a detailed procedure I can write a detailed procedure for a lab investigation. for a lab investigation.

1.1. A man was fishing A man was fishing from a dock.from a dock.

2. The lighthouse is 2. The lighthouse is on land. on land.

3. There is a tackle 3. There is a tackle box on the dock.box on the dock.

4. A fish bit the dock.4. A fish bit the dock.5. A man was eaten 5. A man was eaten

by a fish.by a fish.

• Do double stuf Oreos actually Do double stuf Oreos actually have twice as much filling as a have twice as much filling as a regular Oreo?regular Oreo?

•1 double stuf Oreo1 double stuf Oreo

•1 regular Oreo1 regular Oreo

•Triple-beam balanceTriple-beam balance

•RulerRuler

•CalculatorCalculator

1.1. Gather lab materials.Gather lab materials.

2.2. Carefully twist off one side of the Carefully twist off one side of the cookie from both Oreos.cookie from both Oreos.

3.3. Measure the mass (g) of the cookie Measure the mass (g) of the cookie with no filling on it for both cookies with no filling on it for both cookies using the balance. using the balance.

4.4. Record the number of grams in the Record the number of grams in the data table.data table.

5.5. Measure the mass (g) of each cookie Measure the mass (g) of each cookie with the filling on it using the balance. with the filling on it using the balance.

6.6. Record the number of grams in the Record the number of grams in the data table.data table.

7.7. Calculate the mass of filling by Calculate the mass of filling by subtracting the cookie mass (g) from subtracting the cookie mass (g) from the cookie + filling mass (g). the cookie + filling mass (g).

8.8. Record the difference (g) in the data Record the difference (g) in the data table.table.

9.9. Record the results from 3 other groups.Record the results from 3 other groups.

10.10. Calculate the average mass (g) of filling Calculate the average mass (g) of filling and record this value in the data table.and record this value in the data table.

11.11. Clean up!Clean up!

• Oreo Lab: Data Oreo Lab: Data Table, Variables, Table, Variables, Hypothesis & Data Hypothesis & Data CollectionCollection

• Please record Please record today’s schedule today’s schedule & homework in & homework in your planner.your planner.

• List 3 things that List 3 things that you need to you need to include when include when writing a lab writing a lab procedure.procedure.

• NoneNone

09-12-1309-12-13

09-12-1309-12-13

I can correctly identify I can correctly identify variables & write a variables & write a

hypothesis for a lab. hypothesis for a lab.

Type of Type of cookiecookie Group #Group # Mass of Mass of

cookiecookie

Mass of Mass of cookie + cookie +

fillingfilling

Calculated Calculated mass of mass of

fillingfilling

RegularRegular 11 gg gg gg

22 gg gg gg

33 gg gg gg

44 gg gg gg

Double Double

StufStuf11 gg gg gg

22 gg gg gg

33 gg gg gg

44 gg gg gg

Average Average mass of mass of

fillingfilling

gg

gg

Type of Type of cookiecookie Group #Group #

Calculated Calculated mass of mass of

fillingfilling

Average Mass of Filling Average Mass of Filling

(grams)(grams)

RegularRegular 11 gg

22 gg

33 gg

44 gg

55 gg

66 gg

77 gg

88 gg

99 gg

1010 gg

1111 gg

1212 gg

1313 gg

1414 gg

1515 gg

Type of Type of cookiecookie Group #Group #

Calculated Calculated mass of mass of

fillingfilling

Average Mass of Filling Average Mass of Filling

(grams)(grams)

Double Double StufStuf

11 gg

22 gg

33 gg

44 gg

55 gg

66 gg

77 gg

88 gg

99 gg

1010 gg

1111 gg

1212 gg

1313 gg

1414 gg

1515 gg

• Manipulated:Manipulated:

Type of Oreo – double stuf or regular.Type of Oreo – double stuf or regular.

• Responding:Responding:

The mass (g) of the filling.The mass (g) of the filling.

• Controlled:Controlled: – Triple-beam balance Triple-beam balance

– Method used.Method used.

• Write a hypothesis using the IF, Write a hypothesis using the IF, THEN, BECAUSE format.THEN, BECAUSE format.

• IFIF double stuf and regular Oreos are double stuf and regular Oreos are compared compared THENTHEN the double stuf Oreo will the double stuf Oreo will have twice the amount of filling of the have twice the amount of filling of the regular Oreo regular Oreo BECAUSEBECAUSE Nabisco isn’t Nabisco isn’t allowed to falsely advertise their cookies.allowed to falsely advertise their cookies.

• Oreo Lab: Oreo Lab: Analysis & GraphsAnalysis & Graphs

• Please record Please record today’s schedule today’s schedule & homework in & homework in your planner.your planner.

• What 3 key words What 3 key words must be found in must be found in a hypothesis?a hypothesis?

• NoneNone

09-13-1309-13-13

09-13-1309-13-13

I can analyze & graph the I can analyze & graph the results of a lab.results of a lab.