Homework 2: Section 2.2 of Guided Reading/Workbook

Classifying Mixtures, page 11-12

Mixtures, Compounds and Substances

Objective: Distinguish between mixtures, compounds and substances.

Separation of Mixtures Lab

Physical and Chemical Properties

Objective: Distinguish between physical and chemical changes

Physical and Chemical Changes Lab

Bellringer 4

Indicate if the following is a physical or chemical change:
a. carmelized sugar
b. melting of metal
c. diced tomatoes
d. mold on cheese
e. ice melting
f. alcohol burning
g. lathering soap
h. cutting down a tree

Homework 1: Metric Conversions

Metric Measurement Conversion



Directions: Write the equivalent measure for the problem.



1. 40 ml = _______ L
2. 5000 L = _______ kl
3. 8 g = _______ kg
4. 12000 L = _______ kl
5. 50 mg = _______ g
6. 6000 m = _______ km
7. 200 kg = _______ g
8. 10000 g = _______ kg
9. 500 ml = _______ L
10. 1 L = _______ ml
11. 4000 L = _______ kl
12. 400 cm = _______ m
13. 20 ml = _______ kl
14. 7000 ml = _______ L
15. 7 cm = _______ mm
16. 9000 L = _______ ml
17. 6 m = _______ mm
18. 1000 cm = _______ m
19. 11 km = _______ m
20. 80 mg = _______ kg
21. 3 m = _______ mm

Bellringer 3

Calculate the following conversions:

1. 643.34 cm = _____ m
2. 23.1 m = _____dm
3. 957.3 mm = _____ km
4. 34.2 in = ______ meter
5. 8.2 quarts = ____ liters

Round each to 3 significant figures

1. 23.35
2. 5.492
3. 96.26

Bellringer 2

Based on the graph, the density of Liquid A is
a. 0.25 g/mL
b. 4 g/mL
c. 15 g/mL
d. 100 g/mL
(D = m/v)

What is Matter?

Concept Mapping on Matter
Physical and Chemical Properties
Metrics, Measurement and Math in Science
Metric System, Significant Figures, Conversions, Charts, Graphs

Scientific Method Review

Instructions:

In each set below, you are to arrange the information in the logical order of the scientific method. Match each step with the following:

1- Problem
2- Hypothesis (educated guess before experimentation)
3- Experiment and observations
4- Conclusion (based on experimentation)


I. Moose
_______ Yes, I believe that a moose likes raspberries
_______ A moose does not like raspberries because he
Will not eat them even when they are placed in
His feeding area
_______ Locate a moose. Place in his usual feeding area
A large bowl of raspberries and observe for
Several feedings.
_______ Does a moose like raspberries?

II. Eagles
_______ How high do eagles nest?
_______ After measuring 3 nests, it seems they nest no
More than 50 feet off the ground
_______ Eagles nest at least 75 feet up on cliffs
_______ Spot a nest and climb toward it. When you
Reach it, start measuring with a tape measure
As you proceed back down.

III. Angel Fish
_______ After several days, 4 were left. Therefore cannibalism
Results when 50 angel fish are placed in a 5 gallon
Aquarium without food for several days
_______ Place 50 angel fish in a 5 gallon aquarium and observe
For several days without feeding them.
_______ No, cannibalism will not result.
_______ Will angel fish exhibit cannibalism when 50 are placed in
A 5 gallon aquarium without feeding for several days?

IV. Dog
_______ Based upon several observations, colored lights have no
Effect upon my dog’s feeding habits.
_______ Yes, my dog will eat better under red light.
_______ Does my dog eat better when exposed to a particular color
Of light?
_______ Observe the dog’s feeding habits for several days, using a
Different colored light each time.


V. Sponges
_______ Dive down and observe for several hours. Note the
Predators. Make photographs and then identify them
Later.
_______ After 3 days of study and observation with an underwater
Camera, only small tropical fish feed upon the sponge.
_______ What marine life feeds upon sponges?
_______ Sharks feed upon sponges.

Lab 1: Safety Scenes

Class divided into lab groups, identify the right/wrong of lab safety scenes.

Interactive Journals

Powerpoint- the creation of interactive journals and its application in writing science based experiments using scientific method.

Chapter 1 and 2 Vocabulary

Chapter 1

analytical chemistry	hypothesis	physical chemistry
biochemistry	inorganic chemistry	scientific law
chemistry	observation	scientific method
experiment	organic chemistry	theory

Chapter 2

chemical property	homogeneous mixture	physical change
chemical reaction	law of conservation of mass	physical property
chemical symbol	liquid	product
compound	mass	reactant
distillation	matter	solid
element	mixture	solution
gas	phase	substance
heterogeneous mixture		vapor

Bellringer 1

1. Which of the following is least important to know about a liquid solution you are using during a laboratory investigation?

1. price of the solution per mL
2. flammability of the solution
3. first aid procedures to follow for skin contact
4. recommended procedures for appropriate Disposal

Welcome!

WELCOME TO CHEMISTRY!

AUGUST 24, 2009

I. Introductions, Room Orientation, Technology

II. Icebreaker

III. Syllabus and class rules

IV. Why study chemistry? What is chemistry?

V. Matter Concept Map

VI. Language of science

Lab Journals

VII. Lab safety

Regular Bell Schedule

830am First Bell
835-1005 1st/5th Period
1010-1140 2nd/6th Period
First lunch 1140-1225
1230-200 3rd/7th Period
205-335 4th/8th Period

First week of school bell schedule

830am First Bell
835-905 Homeroom
910-1025 1st/5th Period
1030-1150 2nd/6th Period

First lunch 1150-1230 Second lunch 1155-120
1235-200 3rd/7th Period
205-335 4th/8th Period

Student Expectations

Expectations of Me

1. I will always do my best.
2. I will show respect for myself, my teacher, my peers, and materials.
3. I have read, understood, and agreed to the terms of the safety contract.
4. I will take responsibility for my grade.
5. I will seek help if I need it. I understand everyone gets confused, but Mrs. Tran doesn’t know when to help you if you don’t ask.
6. I will take pride in being a South Hills Scorpion!
7. I choose to make it an awesome year!

What I can expect from Mrs. Tran

1. She will treat me fairly.
2. She is concerned about me and my education.
3. She will update me on my progress and grades.
4. She will expect a lot from me.
5. She will teach me the things I’m willing to learn.
6. She will be honest with me.

Where to go for help
Please visit the classroom for help between these hours:

email address: myscienceclass@yahoo.com

website: http://scienceeinstein.blogspot.com

Lab Safety Contract

Science is a hands-on laboratory class. Students will be doing many laboratory activities that may require the use of chemicals, laboratory equipment, and other items which, if used incorrectly, can be hazardous. Safety in the science classroom is the number 1 priority for students, teachers, and parents. To ensure a safe science classroom, a list of rules has been developed and provided to you in this student safety contract. These rules must be followed at all times. The student and a parent must sign their copy. Please read the entire contract before you sign. Students will not be allowed to perform experiments until all their contracts are signed and given to the teacher.

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GENERAL GUIDELINES

1. Conduct yourself in a responsible manner at all times in the classroom.

2. Follow all written and verbal instructions carefully. If you do not understand a direction or part of a procedure, ASK YOUR TEACHER BEFORE PROCEEDING WITH THE ACTIVITY.

3. When first entering a science room, do not touch any equipment, chemicals, or other materials in the laboratory area until you are instructed to do so.

4. Perform only those experiments authorized by your teacher. Carefully follow all instructions, both written and oral. Unauthorized experiments are not allowed.

5. Be prepared for your work in the laboratory. Read all procedures thoroughly before entering the laboratory. Never fool around in the laboratory. Horseplay, practical jokes, and pranks are dangerous and prohibited.

6. Be alert and proceed with caution at all times in the laboratory. Notify the teacher immediately of any unsafe conditions you observe.

7. Keep hands away from face, eyes, mouth, and body while using chemicals or lab equipment. Wash your hands with soap and water after performing all experiments.

8. Experiments must be personally monitored at all times. Do not wander around the room, distract other students, startle other students or interfere with the laboratory experiments of others.

CLOTHING

9. Any time chemicals, heat, or glassware are used, students will wear safety goggles. NO EXCEPTIONS TO THIS RULE!

10. Dress properly during a laboratory activity. Long hair, dangling jewelry, and loose or baggy clothing are a hazard in the laboratory. Long hair must be tied back, and dangling jewelry and baggy clothing must be secured. Shoes must completely cover the foot. No sandals allowed on chemical lab days.

ACCIDENTS AND INJURIES

11. Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to the teacher immediately, no matter how trivial it seems. Do not panic.

HANDLING CHEMICALS

12. Do not taste, or smell any chemicals.

13. Do not return unused chemicals to their original container unless specifically instructed by your teacher.

14. Never remove chemicals or other materials from the laboratory area.

QUESTIONS (answers are confidential)

15. Do you wear contact lenses? Yes_______ No______

16. Are you color blind? Yes _______ No______

17. Do you have allergies? Yes _______ No ______

If so, please list specific allergies _____________________________________________________________________________

_____________________________________________________________________________

AGREEMENT

I, __________________________________ (student's name) have read and agree to follow all of the safety rules set forth in this contract. I am aware that any violation of this safety contract that results in unsafe conduct in the laboratory or misbehavior on my part, may result in my being removed from the lab classroom, detention, receiving a failing grade, and/or further disciplinary action.

Student signature Date

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Lab Report Rubric

LAB REPORT RUBRIC

Note: Points will be deducted for punctuation & capitalization.
Note: You must use black or blue pen. Mark only one line through errors…do not scribble anything out.
Category	Proficient Scoring Criteria	Points	Student #1 Evaluator:	Student #2 Evaluator:	Teacher Notes:
General Info.	Title, Name, Group members, Period, Start date, End date.	5
Problem	Purpose/Objective of the experiment is written in a question format.	5
Background	Explained prior knowledge on topic in paragraph form. List Control Variables, Independent/Manipulated Variable, Dependent/Responding Variable, Control Group, Experimental Group, & Control Variables	5
Hypothesis	“If…Then…” Statement of what you think will happen.	5
Materials	List of supplies needed for the experiment in bullet format.	5
Procedures	List of detailed & clear step-by-step written procedures…must be numbered!	15
Data Table 10, Graph 10, Analysis 10	Easy to read data table(s) with title. Easy to read graph(s) with title. The analysis is a word explanation of the graph(s).	30
Conclusion	Restate hypothesis. Was it accepted or rejected? Explain how results of experiment relate to hypothesis. Use data to support explanation. Any human error? How could you increase the validity of this experiment? List at least 2 questions! (Don’t answer them…just ponder!)	20
Initial Score	ADD ALL ABOVE POINTS TOGETHER	=90
Lab Participation	To be graded by the teacher.	10
Total Score		100

You will lose points for the following: improper spacing, not using proper punctuation and capitalization, scribbling instead of using one line to cross out a mistake, & not using pen (you must use pen NOT pencil).