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Mrs. Malone

Ms. Cedillo

Density

October 21, 2013

- DO NOW:
- Date: October 21, 2013
- TEKS:
- 6.8B calculate density to identify an unknown substance
- Pick up a new Gold Do Now sheet
- Pre-AP – Turn in Density? Diddy Did It.
- Put your CB on your desk
- Copy down this week’s TEKS
- Read the Do Now Reading
- 5. Q?: Who was the person who named Oxygen?
- Why is Oxygen such an important element?

- Homework: Calculating Density Practice – due Friday
- Tutorials: Monday (Today!) after school
- Science Olympiad Club: Meets Today after school
- Friday Quiz: Be able to calculate density to identify an unknown

Grade Level Agenda

- Start working on Density? Diddy Did It. Show all work and include units.
- Example: D=m/v D= 10.0g/5.0mL D=2.0g/mL
- Finish Density? Diddy Did It in class today

Measurement Practice

- Watch the scale of each graduated cylinder!
- Is it 1.0mL?
- Is it 0.1mL?
- Is it 2.0mL?
- You may use a calculator for volume of a solid = l*w*h
- You may use a hand lens for the triple beam balances

Mrs. Malone

Ms. Cedillo

Density

October 22, 2013

- DO NOW:
- Date: October 22, 2013
- 6.6B calculate density to identify an unknown substance
- Put your CB on your desk
- Read the Do Now Reading
- Q?: The atoms of an element are made of the three subatomic particles. What are the names of the subatomic particles?

- Homework: Calculating Density Practice – due Friday
- Science Olympiad Club: Meets Monays after school
- Friday Quiz: Be able to calculate density to identify an unknown

Pre-AP Measurement Practice

- Watch the scale of each graduated cylinder!
- Is it 1.0mL?
- Is it 0.1mL?
- Is it 2.0mL?
- You may use a calculator for volume of a solid = l*w*h
- You may use a hand lens for the triple beam balances
- When you finish: Pick a left side assignment from pages 6-7 in your comp book and complete an assignment on Density on your next available left page

Mrs. Malone

Ms. Cedillo

Density

October 23-24, 2013

- DO NOW:
- Date: October 23-24, 2013
- 6.6B calculate density to identify an unknown substance
- Put your CB and Measurement Practice Packet on your desk
- Read the Do Now Reading
- Q?: How did Lavoisier prove that matter is never lost or gained?

Homework: Calculating Density Practice due Friday

Science Olympiad Club: Meets Mondays after school

Friday Quiz: Be able to calculate density to identify an unknown

Grade Level Measurement Practice

- Watch the scale of each graduated cylinder!
- Is it 1.0mL?
- Is it 0.1mL?
- Is it 2.0mL?
- You may use a calculator for volume of a solid = l*w*h
- You may use a hand lens for the triple beam balances
- When you finish: Pick a left side assignment from pages 6-7 in your comp book and complete an assignment on Density on your next available left page

Pre-AP: Before we start the lab…

- Put backpacks under table
- Pre-AP: You will have time to complete the Measurement Practice Packet after today’s lab. Please turn in your Measurement Practice Packet today.
- Clear desk – we’re using water!
- Write first and last name on your lab paper!

Mrs. Malone

Ms. Cedillo

Searching for Density Lab

October 23-24 2013

- Yellow- Materials Manager
- Only person allowed out of seat during lab
- Obtains and returns all lab materials
- Blue- Safety/Clean-up Manager
- Enforces all safety rules
- Green- Activity Director
- • Reads directions to the group
- • Keeps group on-task
- Red - Data Manager
- Records all data
- Ensures all group members have lab data

:

Searching for Density Lab

- Describe your cylinders with detail (translucent yellow cylinder, 3.7cm in length, shiny, rubbery solid, feels heavy for its size)
- Take accurate measurements – there is a right answer!
- Measure length in centimeters (cm) to one decimal place (Example: 3.7cm)
- Measure volume in milliliters (mL) to one decimal place (Example: 4.5mL)
- Measure mass in grams (g) to two decimal places (Example: 86.35g)

- 0.77 g/mL = Maple
- 0.90 g/mL = Polypropylene
- 1.15 g/mL Polyamide (Nylon)
- 1.17 g/mL = Acrylic #1
- 1.17 g/mL = Acrylic #2
- 1.23 g/mL = Polyurethane
- 1.32 g/mL = Phenolic
- 1.37 g/mL = PVC #1
- 1.37 g/mL = PVC #2
- 1.37 g/mL = PVC #3
- 2.2 g/mL = PTFE (Teflon)
- 2.71 g/mL = Aluminum

Mrs. Malone

Ms. Cedillo

Density

October 25, 2013

- DO NOW:
- Date: October 25, 2013
- 6.8B calculate density to identify an unknown substance
- Turn in Calculating Density Practice Homework (Pink Paper)
- Keep your gold Do Now sheet in a safe place for next week
- Read the Do Now Reading
- 3. Q?: How is oxidation a chemical reaction?

Homework: Check Gradespeed and class website for missing work

Tutorials: Monday after school

Science Olympiad Club meets Monday after school

Energy Next Week!

The Case of the Lost Labels Quiz

- Put your first and last name on the paper
- Show all work – all problems should be set up like the first problem for full credit
- Identify the mystery liquids and add them to the data table
- Work on Measurement Practice Packet when finished and turn it in!
- Did you turn in your Pink Calculating Density Practice Homework paper?
- Did you turn in your Yellow Do Now sheet?

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