Alvarez, Rickyrea – 1 Contreras, Anaih – 2 Cortina, Carlos – 3 Flores, Erik – 7
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Transcript of Alvarez, Rickyrea – 1 Contreras, Anaih – 2 Cortina, Carlos – 3 Flores, Erik – 7
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T – Exploring Density Lab – Part 2A – Start working on your Lab Report, Due Wed 9/15L – 5 ideas for science fair, Density Lab (Part 1) and Density WorksheetE – Organize your binders, we could have a binder check at any time!
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• Alvarez, Rickyrea – 1 • Contreras, Anaih – 2 • Cortina, Carlos – 3 • Flores, Erik – 7 • Franco, Jessica – 8 • Garduno, Brittany – 9 • Gonzales, Andrew – 27 • Hernandez, Marifer – 22 • Holland, Austin – 23 • Marquez, Natalie – 24 • Menjivar, Israel – 28 • Owens, Courtni – 13
• Pantoja, Angela – 15 • Pierson, Anisa – 36• Rios, Tammy – 16 • Sanchez, Mariah – 35 • Soto, Adam – 21 • Torres, Daniel – 14 • Trevino, Alexis – 25 • Velasquez, Nico – 33 • Villarreal, Maria – 34 • Walters, Nikolaus – 10 • White, Fredrick – 26
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Step 1: Write down your TALEStep 2: Put your homework in the middle of your lab table
Step 3: BELLRINGER – SEPT 13, 2010
1. Flammable materials, like alcohol, should never be dispensed or used nearA. an open door.B. an open flame.C. another student.D. a sink.2. You are heating a piece of glass and now want to pick it up. You shouldA. use a rag or paper towels.B. pick up the end that looks cooler.
C. use tongs.D. pour cold water on it.
3. You are heating a substance in a test tube. Always point the open end of the tubeA. toward yourself.B. toward your lab partner.C. toward another classmate.D. away from all people.
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If you have not taken the scientific method quiz yet…
• You have today and tomorrow to take it
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Density Lab – Part 2Purpose: Finding density of water, a medicine bottle and a rock
You will need to write a Lab Report on this. I suggest you pay attention to what you’re doing. If you have a question, I am happy to help. But I do require that you listen to all instructions. 1st Consequences: Doing lab alone.2nd Consequence: Doing an alternate assignment.
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• To find density of WATER...• FIRST: You will need to find mass. • You will use the triple beam balance. • Measure the container, add the water, measure again
and SUBTRACT • SECOND: You will need to find volume. • Easy! Use the same amount of water you had of the
triple beam balance, record level in graduated cylinder• THIRD: Density – you know how to do this!
Density Lab – Part 2
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Density Lab – Part 2• To find density of ROCK…• FIRST: You will need to find mass. • You will use the triple beam balance. • Easy! Calibrate, put the rock on the balance, measure!• SECOND: You will need to find volume. • Be CAREFUL!!!!• Measure a volume of liquid. Add rock. Measure again.
Subtract!• THIRD: Density – you know how to do this!
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• To find density of BOTTLE….• FIRST: You will need to find mass. • You will use the triple beam balance. • Easy! Calibrate, put the rock on the balance,
measure!• SECOND: You will need to find volume. • Measure a volume of liquid. Add bottle, submerge.
Measure again. Subtract!• THIRD: Density – you know how to do this!
Density Lab – Part 2