Physical Science Week 1            

 

  • Safety
  • Significant number
  • Leading zero
  • Trailing zero
  • Sandwiched zero
  • Nonzero number
  • Hall Pass
  • Tardies
  • Grades
  • Lab notebook

 

Day 1

click to find the answer to today's question

What are you expected to bring to the classroom everyday?

 

Expectations

           

Welcome to honors chem/physics! This course is designed with the following objectives in mind.

           

1.       To help you organize and sharpen your thinking skills (critical, creative, collaborative, and problem-solving).

2.       To develop an appreciation of the world around you by understanding some of the fundamental principals that shape and govern it.

3.       To help prepare you for success in future science courses.

 

In order to accomplish these objectives, we will all live up to the expectations set forth in the Desert Vista Student Handbook. In addition, we will all meet the following expectations:

 

¨       Act responsibly in the lab and classroom. This is for your safety as well as mine. When you have completed a lab, all equipment should be returned in good working condition, and your lab station cleaned.

¨       Be respectful to all people and property at Desert Vista.

¨       Do you own work and strive always to do your very best.

 

Consequences for not meeting class expectations may include seat reassignment, parent conference, referral to the administration, and loss of credit (in cases of dishonesty and/or lab safety violations).

 

Materials

 

            You are required to bring to class everyday, a pen and pencil, paper, and a means to keep notes and other materials organized. In addition, you will need to bring a bound lab book or journal (see example) to class everyday. All lab reports will be written and entered into your journal. Every person in your lab team will be responsible to ensure that every lab member understands the objectives and results of the experiment. After the team has been given sufficient time for tutoring, collaboration, and writing, I will choose one journal from the team to evaluate. The entire team will receive the same grade.

 

Grades

 

You determine the grade you receive by your participation and effort in the class. Every assignment is worth points, i.e. tests are worth 50 points, labs are approximately 30 points, and textbook assignments vary. I simply add up your point total and if you’re in the 90% range, you earn an “A”. The 80-89% range are the “B’s”, and the 70-79% are the “C’s”. Since this is an honors course, a grade of “D” or “F” is unacceptable and you will be placed in a regular chem/physics class.

I do not accept late work, and I expect you to be aware of the upcoming assignments and have them ready to turn in if you are absent. The weekly assignments are posted and it is your responsibility to be aware of what you are going to miss. You have the same number of days to make up an assignment as you miss (school policy).

Your two-quarter percentages will then be added to your semester exam percentage to determine your semester grade. Each quarter percentage is worth 40% of the semester grade, while the semester exam is worth 20%.

 

Help

 

If at any time you need help, please feel free to see me! I usually get to school at 7:00 am and stay until 4:00 PM. My conference hour is 1st  period.  If I am not in the classroom, then I will be in the science workroom C-126. Remember that I am here to help you.

 

 

   Homework assignment #1.1 (Notecard)
This assignment must be turned in at the beginning of class tomorrow to receive credit.

 

Using the 3 x 5 card you received in class today do the following.

 

 

Albert Einstein

Parents:  Hermann & Pauline                                            

Phone:  480-706-1879    Work: 480-706-1905

Email:  hermaneinstein@cox.net        (Parent) 

Activities:  Science club,  sailing club, orchestra

Hobbies:    Playing violin, Playing cards,

                    Riding bicycles, studying matter

Interesting facts: Taught myself algebra

by the time I turned eleven

.  

 

 

 

 

 

 

         Homework assignment #1.12 (Parental Acknowledment and Contact Information Sheet)
This assignment must be turned in at the beginning of class tomorrow to receive credit.

Return the Emergency form and signed Parental Acknowledgement and Contact Information sheet tomorrow.

 


Day 2

 

Safety: Freedom from danger, injury, or risk.

click to find the answer to today's question

Where should you go in the event of a fire alarm?

 

 

 

View Safety video in class.

Discuss safety.  Take safety quiz.

 

         Homework assignment #1.2   Click this link and read (Lab Safety Reading)
This assignment must be turned in at the beginning of class tomorrow to receive credit.

Also read pages 868 & 869 in your Physical Science Book.

Answer the questions on this document. link to a local webpage


Day 3

Significant figures: Measured numbers that convey the degree of exactness.

click to find the answer to today's question

What is the purpose of significant figures?

 

 

Significant Figures

 

Non-zero digits-  Are always counted.

 

  • Example:  The number 23 has 2 significant figures.     The number 231 has 3 significant figures.   The number .2312  has 4 significant figures.  Check some of your own examples link to an Internet Website

Zeroes –

  • Sandwiched zeroes -   Are always counted.   Example:  The number 203 has three significant figures.  The number 1001 has four significant figures.  Check  some of your own examples.  link to an Internet Website
  • Leading zeroes-    Are never counted.  Example:   The number .0023 has two significant figures.  The number .000333 has three significant figures.  link to an Internet Website
  • Trailing zeroes -  Count if there is a decimal.  Example:  The number 200 has one significant figure.  Since it has no decimal.  The number 200. has three significant figures.  Since it has a decimal.  Try some of your own examples link to an Internet Website

 

Adding and subtracting using significant figures.

  • When adding and subtracting using significant figures round your final answer to the least accurate place.

Example:     23   +    .25   =  23.25  The correct answer rounded using sig. figs. would be 23.  Since the number 23 is accurate to the ones place, and the number .25 is accurate to the hundredths place you need to round to the ones.  Since the ones place is less accurate than the hundredths.

 

 

Multiplication and division

  • To multiply or divide: You find the number with the least sig figs, and use that many sig figs in the answer.

5   x  5  =  25   Rounded to sig. figs. your answer should be 30     Which has only one sig fig.

3  x  12  = 36  Rounded to sig. figs. your answer should be 40   Since the number three has only one sig fig. therefore, your answer should only have one sig. fig.

mult1.gif (3364 bytes)

Try some more examples on your own.  link to an Internet Website Click the more practice link.

 

 

Homework assignment #1.3 (Signifcant figures #1) link to a local webpage
This assignment must be turned in at the beginning of class tomorrow to receive credit.


Day 4

Introduction to the computer Lab

 

Check assignment 1.3. in class

Discuss sig. figs.

 

Homework assignment #1.4 (Signifcant figures #2) link to a local webpage
This assignment must be turned in at the beginning of class tomorrow to receive credit.


Day 5

 

Sig. fig. Quiz

Begin scientific method

 

01 – Copper Lab

Lab Group Members: Most labs in this class will be done in groups. Several labs, like this one, will be done individually.

The Lab Problem: How do scientist use their observations?

Our Hypothesis:  

Research References: With most of your labs, you will be given time to research the problem. This will give you some background about the problem and the information gained will help you decide how to solve the problem.

Procedures

See page 1 in the physical science text. 

Observations

Ask questions

Hypothesis

Test hypothesis (experiment)

Draw conclusions

Develop a theory

X

Conclusion: A conclusion is the answer to the question, or solution to the problem.