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Name: _________________________________________ Date: ___________________________ Mods: _________

UNIT 1 – INTRODUCTION to Chemistry

Date Agenda Homework

Thurs 8/28 Introduction-Syllabus, Lab Safety, Personal Info & Books Get Supplies Webpage Assignment – due tomorrow! Lab Safety Contract – get signed

Fri 8/29 Lab Safety Video Safety map

Make 10 observations on candle (do not burn it!) – in packet

Mon 9/1 No School ~ Labor Day

Tues 9/2

Quiz – Safety Pre-Assessment Candle Burning Observations (burning 3-4 times for 3 minutes each)

Wed 9/3 Candle Observations - Discussion Powerpoint (slides 1-3) – Quantitative vs. Qualitative Read p 3-9 and p 15-17

Thurs 9/4 Quiz - quantitative and qualitative observations Lab report format Pre-Lab – Evidence of Interaction

Fri 9/5 Lab#1 - Evidence of Interaction Finish lab report

Mon 9/8 Post Lab Powerpoint (slides 3-8) Mass/energy, Physical/Chemical Changes Read p 29-34

Tues 9/9 BTS Night Lab#2 Physical/Chemical Changes

Wed 9/10 ½ Day

Finish lab Go over lab Mini Lab - alka seltzer

Read p 36-43

Thurs 9/11 Lab #3- Determine Volume by Displacement Study for quiz

Fri 9/12 Quiz - everything to date Pre-lab Searching for Regularity

Mon 9/15 Lab #4 Searching for Regularity Collect data

Tues 9/16 Finish lab - get data in computer Notes - Accuracy/Precision Calculate averages for mass and volume

Wed 9/17 Discuss graphing Graph sample data Graph data from lab

Thurs 9/18 Discuss results, Identify materials used Finish lab Report - Due Monday

Fri 9/19 Density (slides 15-16), Density Worksheet Read p 68-71 Do practice problems #23 and 24 p 71

Mon 9/22 Lab#5 Coke/Diet Coke Graph results

Tues 9/23 Go over lab Density Worksheet – go over, any questions

Wed 9/24 Lab #6 Pennies Graph results Thurs 9/25 No School ~ Rosh Hashanah

Fir 9/26 Go over lab Review for test – in packet Study For Test

Mon 9/29 Test

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CCPP CCHHEEMMIISSTTRRYY -- WWEEBBSSIITTEE AASSSSIIGGNNMMEENNTT

The answers to the questions below can be found on the internet.

1. Search the school’s website and find the CP Chemistry website. What is the address of this site?

______________________________________________________________________________________ Bookmark this site!

2. What is your teacher's email address? _________________________________________________________

3. What is the title of unit 1? __________________________________________________________________

4. List the homework for tonight (Thursday Aug 28)

5. If you were absent on Wednesday September 3, you could find the notes on the website. What is the title of

the power-point for these notes? _____________________________________________________________

6. What is the tentative date of our first test (Unit 1)? ______________________________________________

Extra credit:

• Student - email your teacher, in the subject line put your name and your chemistry mods • Parent – email your child’s teacher, in the subject line put your child's name and chemistry mod

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SScciieennccee SSaaffeettyy RRuulleess

The Bikini Bottom gang has been learning safety rules during science class. Read the paragraphs below to find the broken safety rules and underline each one. How many can you find?

SpongeBob, Patrick, and Gary were thrilled when Mr. Krabbs gave their teacher a chemistry set! Mr. Krabbs warned them to be careful and reminded them to follow the safety rules they had learned in science class. The teacher passed out the materials and provided each person with an experiment book.

SpongeBob and Gary flipped through the book and decided to test the properties of a mystery substance. Since the teacher did not tell them to wear the safety goggles, they left them on the table. SpongeBob lit the Bunsen burner and then reached across the flame to get a test tube from Gary. In the process, he knocked over a bottle of the mystery substance and a little bit splashed on Gary. SpongeBob poured some of the substance into a test tube and began to heat it. When it started to bubble he looked into the test tube to see what was happening and pointed it towards Gary so he could see. Gary thought it smelled weird so he took a deep whiff of it. He didn’t think it smelled

poisonous and tasted a little bit of the substance. They were worried about running out of time, so they left the test tube and materials on the table and moved to a different station to try another experiment.

Patrick didn’t want to waste any time reading the directions, so he put on some safety goggles and picked a couple different substances. He tested them with vinegar (a weak acid) to see what would happen

even though he didn’t have permission to experiment on his own. He noticed that one of the substances did not do anything, but the other one fizzed. He also mixed two substances together to see what would happen, but didn’t notice anything. He saw SpongeBob and Gary heating something in a test tube and decided to do that test. He ran over to that station and knocked over a couple bottles that SpongeBob had left open. After cleaning up the spills, he read the directions and found the materials he needed. The only test tube he could find had a small crack in it, but he decided to use it anyway. He lit the Bunsen burner and used tongs to hold the test tube over the flame. He forgot to move his notebook away from the flame and almost

caught it on fire. Before they could do another experiment, the bell rang and they rushed to put everything away. Since they didn’t have much time, Patrick didn’t clean out his test tube before putting it in the cabinet. SpongeBob noticed that he had a small cut on his finger, but decided he didn’t have time to tell the teacher about it. Since they were late, they skipped washing their hands and hurried to the next class.

Worksheet created by T. Trimpe 2003 http://sciencespot.net/

This image cannot currently be displayed.

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LLAABB SSAAFFEETTYY VVIIDDEEOO

1. Who has the responsibility of safety in the classroom? ___________________________

2. Lab is a ________________________.

3. Students should wear ____________ shoes.

4. Students should ___________________ hair (if it is long and dangly).

5. Wear goggles _____________________.

6. No ___________________, No ____________________.

7. You never _______________ or _________________ in a science laboratory.

8. Lab is not for _______________________.

9. Follow all __________________ and _________________ instructions.

10. If you have a question, ________________________________.

11. Never work __________________ or without __________________________.

12. Personal safety equipment includes ____________________, _____________________, and _____________________

13. Classroom safety equipment may include ___________________, ______________________, ___________________, ______________________and ______________________

14. PASS stands for ________________, ___________________, ________________ and _________________

15. Don’t ________________ anything.

16. Read __________________ carefully.

17. _____________________ vapors toward your nose to identify an odor.

18. When working with a burner, make sure all ________________________ are far away.

19. Before throwing something away always ________________________________

20. Place broken glassware in an ___________________________

21. True or False…turn on the burner and then light the match.

22. Don’t point the mouth of a heated test tube toward _______________________.

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LLaabb SSaaffeettyy RRoooomm 333355

You need to find the following items in room 335 and mark them on the back of this page.

- Put an X on your desk.

- Label the teacher’s lab area.

- Label the lab tables

- Label the computers

- Label the glassware cabinet

- Find the following safety items and draw them onto the map

o Eye wash station

o Safety shower

o Safety blanket

o Fire Extinguisher

o Exits

o Emergency shut off (DO NOT PUSH – it’s called emergency for a reason)

o Safety Goggle Cabinet

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CCaannddllee OObbsseerrvvaattiioonnss DDaayy 11

Make 10 observations on the candle. Do not burn or manipulate the candle in any way.

1. _________________________________________________

2. _________________________________________________

3. _________________________________________________

4. _________________________________________________

5. _________________________________________________

6. _________________________________________________

7. _________________________________________________

8. _________________________________________________

9. _________________________________________________

10. _________________________________________________

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DDiirreeccttiioonnss aanndd OObbsseerrvvaattiioonnss ffoorr CCaannddllee BBuurrnniinngg LLaabb –– DDaayy 22

Time What I did… What I observed (saw)…

0-3 minutes (3 minutes)

Light candle, allow to burn- observe

• • • • •

3-6 minutes (3 minutes)

Blow candle out- observe

• • • • •

6-9 minutes (3 minutes)

Light candle, allow to burn- observe

• • • • •

9-12 minutes (3 minutes)

Blow candle out- observe

• • • • •

12-15 minutes (3 minutes)

Light candle, allow to burn- observe

• • • • •

15-18 minutes (3 minutes)

Blow candle out- observe

• • • • •

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LLAABBOORRAATTOORRYY RREEPPOORRTT OOUUTTLLIINNEE FFOORR CCHHEEMMIISSTTRRYY

You will fill out your Laboratory Notebook for each lab following the format below:

TOP OF 1st PAGE

COURSE TITLE NAME

EXPERIMENT NUMBER SECTION DATE

EXPERIMENT TITLE NAME(S) OF LABORATORY PARTNER(S)

BODY OF REPORT

OBJECTIVE(S):

List (1,2,3,...) clear and concise objectives for the experiment being performed.

PROCEDURE(S):

List any procedure(s) that you use that are not part of the regular laboratory procedure(s).

OBSERVATION(S):

These are usually qualitative statements about what is seen during the experiment. Some observations may seem unrelated to the outcome but may be important in some way in the future. List as many of them as may seem pertinent in any way.

DATA & CALCULATIONS:

These are usually quantitative statements that are measured and mathematically treated. Tabulate and list data in a coherent and legible fashion. Include the units in the use of numerical measurements. Use one sample calculation if there are many of the same type.

CONCLUSION(S):

List conclusions that match your objectives. The conclusions must be concisely stated and supported by your data. Draw conclusions about the probable sources of errors.

**You MUST write out your lab report, even though a copy is in your packet, unless otherwise noted by your teacher**

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GENERAL COMMENTS

1. Take pride in your work!

2. Write in ink or type your report. (Graphs may be in colored pencil.)

3. Write legible letters and words.

4. Write in sentences.

5. Use essay paper or three hole punched notebook paper. DO NOT USE PAPER WITH FRAYED EDGES. (I.E. SPIRAL RING NOTEBOOK PAPER). Do not write on the backs of paper.

GRADING

PRESENTATION

Turned in on time

On lined paper (unless typed). No frayed edges.

Stapled (if more than 1 sheet)

On one side of the page

In sequence

CONTENTS

Your Name

Partner(s) Name

Title

Objective(s)

Procedure (with materials)

Data (original w/signature)

Graphs (as needed)

Analysis (with sample calculations)

Conclusion.

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CHEMISTRY NAME __________________ EXPERIMENT NUMBER #2 SECTION ___ DATE ___ PHYSICAL AND CHEMICAL CHANGES NAME(S) OF LAB PARTNER(S) OBJECTIVE: To carry out four procedures, make observations and decide whether the change is physical or chemical. PROCEDURE: Part A 1. Add 100 ml of water to a 250 ml beaker 2. Add a few drops of food coloring to the beaker of water 3. Make observations for several minutes Part B 1. Dissolve a scoopula tip of potassium sulfate in a small amount of water (about 10 ml) in a 100 ml beaker 2. Dissolve a scoopula tip amount of barium nitrate in a small amount of water (about 10 ml) in a 100 ml beaker 3. Pour the solutions from step 1 and 2 together into an empty 100 ml beaker. 4. Make observations Part C 1. Add about 100 ml of water to a 250 ml beaker 2. Place the beaker on a hot plate 3. Bring the water to a boil. Make careful observations 4. Use tongs to hold a sponge over the beaker for a couple of minutes as the water boils 5. Place the sponge on the lab bench and let it cool 6. Squeeze the sponge and make observations Part D 1. Place a few drops of 3.0 M hydrochloric acid in one of the wells 2. Add a small piece of magnesium ribbon to the acid. 3. Make observations DATA: Part A: Before During After

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Part B: Before During After Part C: Before During After Part D: Before During After CONCLUSION:

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MMiinnii ––LLaabb AAllkkaa SSeellttzzeerr

Objective: Mass is conserved during a chemical reaction. Gases have mass.

Procedure:

1. Fill the film canister about ¼ full with vinegar 2. Break up the Alka-Seltzer on the film canister cap 3. Mass the film canister with vinegar and the cap with Alka-Seltzer on the balance, record 4. Quickly flip film canister cap over the canister and seal immediately 5. Mass the sealed film canister, record 6. Open cap to release gas 7. Mass the film canister with cap again, record

Data:

Mass of film canister with vinegar/cap with Alka-Seltzer: _____________

Mass of sealed film canister: ____________

Mass of film canister after gas was released: _____________

Conclusion:

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CHEMISTRY NAME _______________________________ EXPERIMENT NUMBER #3 SECTION _______ DATE ___________ DETERMINING THE VOLUME PARTNERS: __________________________ Objective: To determine the volume of an irregular shaped solid. Procedure: 1. Add water to your graduated cylinder so that there will be enough water to cover the height of a nail. 2. Next, add a nail to the water in the cylinder. Record the volume of the water with the nail in it. 3. How has the volume in the cylinder changed? 4. Why has the change in question 3 taken place? 5. How can you determine the exact volume of the nail you just added to the graduated cylinder? 6. Repeat this process with a number of other solids that have uneven shapes, and determine the volume of each. Solid A Solid B Solid C Solid D Volume of the water with the solid in it

Volume of the water alone

Volume of the solid

Going further: Complete this sentence: Displacement is a process by which… Complete this sentence: Displacement technique is important because it enables you to …

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DDeennssiittyy WWoorrkksshheeeett

1. What is the triangle used to solve density problems:

2. What is the equation to solve for density:

3. What is the equation to solve for mass:

4. What is the equation to solve for volume:

5. An object has a mass of 5.5g and a volume of 4.2ml. What is the density?

6. An object has a volume of 10.0ml and a density of 3.5g/ml. What is the mass?

7. An object has a mass of 65.7g and a density of 2.13g/ml. What is the volume?

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WWoorrkksshheeeett –– RReevviieeww FFoorr TTeesstt Define the following: Qualitative observations –

Quantitative observations – Element – Compound – Homogeneous mixture – Heterogeneous mixture – Mass – Volume – Density –

Classify the following as qualitative or quantitative observations: warm 5.0 g solid 1.5 cm heavy green Identify as a physical or chemical property:

1. _______________ the boiling point of a certain alcohol is 78oC 2. _______________ diamond is very hard 3. _______________ sugar ferments to form alcohol 4. _______________ a metal conducts an electric current

Identify as a physical or chemical changes:

5. _______________ iron metal is melted 6. _______________ iron combines with oxygen to form rust 7. _______________ wood burns in air 8. _______________ a rock is broken into small pieces

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Graphing questions: 9. A student graphed the following data:

a. Determine the density of each substance from the slope of each line. Show all your work and include appropriate units. b. From the graph, estimate

1. the mass of 6.0 cm3 of material B.

2. the volume of 40. g of material A

3. mark on the graph how you found the answers above

c. Use the densities of the two substances as factors to determine the answers to b. Show work and how the units cancel.

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10. Ethanol has a density of 0.789 g/cm3. a. What is the mass of 225 cm3 of ethanol?

b. What is the volume of 75.0 g of ethanol? 11. What is the density of water in g/mL? Why? 12. The cup is a volume widely used by cooks in the U.S. One cup is equivalent to 225 cm3. If 1 cup of olive oil has a mass of 205 g, what is the density of olive oil in g/cm3? 13. What would you expect to happen if the cup of olive oil in the above question is poured into a container of water? Why? 14. Gold has a density of 19.4 g/ cm3. A cube of gold measures 4.23 cm on each edge:

a. What is the volume of the cube?

b. What is its mass?