Density October 21, 2013 Ms. Smith Mrs. Malone Ms. Cedillo DO NOW: Date: October 21, 2013TEKS: 6.8B calculate density to identify an unknown substance Gold Do Now sheet 1.Pick up a new Gold Do Now sheet 2.Pre-AP – Turn in Density? Diddy Did It. 3.Put your CB on your desk 4.Copy down this week’s TEKS 5.Read the Do Now Reading 5. Q?: Who was the person who named Oxygen? Why is Oxygen such an important element?

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

Grade Level Agenda Density? Diddy Did It 1.Start working on Density? Diddy Did It. Show all work and include units. – Example: D=m/vD= 10.0g/5.0mL D=2.0g/mL Density? Diddy Did It 2.Finish Density? Diddy Did It in class today

Measurement Practice Watch the scale of each graduated cylinder! 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 calculator for volume of a solid = l*w*h You may use a hand lens for the triple beam balances You may use a hand lens for the triple beam balances

Density October 22, 2013 DO NOW: Date: October 22, B calculate density to identify an unknown substance 1.Put your CB on your desk 2.Read the Do Now Reading 3.Q?: The atoms of an element are made of the three subatomic particles. What are the names of the subatomic particles? Ms. Smith Mrs. Malone Ms. Cedillo

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

Pre-AP Measurement Practice Watch the scale of each graduated cylinder! 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 calculator for volume of a solid = l*w*h You may use a hand lens for the triple beam balances 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 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

Density October , 2013 DO NOW: Date: October 23-24, B calculate density to identify an unknown substance 1.Put your CB and Measurement Practice Packet on your desk 2.Read the Do Now Reading 3.Q?: How did Lavoisier prove that matter is never lost or gained? Ms. Smith Mrs. Malone Ms. Cedillo

ANNOUNCEMENTS! Homework: Calculating Density Practice due Friday Homework: Calculating Density Practice due Friday Science Olympiad Club: Meets Mondays after school Science Olympiad Club: Meets Mondays after school Friday Quiz: Be able to calculate density to identify an unknown Friday Quiz: Be able to calculate density to identify an unknown

Grade Level Measurement Practice Watch the scale of each graduated cylinder! 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 calculator for volume of a solid = l*w*h You may use a hand lens for the triple beam balances 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 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 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. 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! Clear desk – we’re using water! Write first and last name on your lab paper! Write first and last name on your lab paper!

Searching for Density Lab October : 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 Ms. Smith Mrs. Malone Ms. Cedillo

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

Density October 25, 2013 DO NOW: Date: October 25, B calculate density to identify an unknown substance 1.Turn in Calculating Density Practice Homework (Pink Paper) gold Do Now sheet 2.Keep your gold Do Now sheet in a safe place for next week 3.Read the Do Now Reading 3. Q?: How is oxidation a chemical reaction? Ms. Smith Mrs. Malone Ms. Cedillo

ANNOUNCEMENTS! Homework: Check Gradespeed and class website for missing work Homework: Check Gradespeed and class website for missing work Tutorials: Monday after school Tutorials: Monday after school Science Olympiad Club meets Monday after school Science Olympiad Club meets Monday after school Energy Next Week! Energy Next Week!

The Case of the Lost Labels Quiz Put your first and last name on the paper 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 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 Identify the mystery liquids and add them to the data table Work on Measurement Practice Packet when finished and turn it in! 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 Pink Calculating Density Practice Homework paper? Did you turn in your Yellow Do Now sheet? Did you turn in your Yellow Do Now sheet?