Physical Science

Unit 1 – Safety, Inquiry and Application/Engineering Design

Daily Entry and Exit Tasks– to learn and assess your progress towards standards:

• Enter quietly, gather your supplies, and be seated before the bell rings.

• Answer the question(s) from the board on your Entry Task Sheet. You may help each other with the entry task. We will discuss and you should copy answers you did not have.

• Last 5 minutes for exit task. You may not help each other or ask me. This is to assess how well you understood the material of the day.

• You will “trade and grade” during Exit Task most Fridays. The grader’s signature verifies they graded honestly!

• Entry task and exit task are worth 20 points per week.• Turn in your entry/exit task answer sheet on FRIDAY each week. • If absent, look on my website to complete these tasks.

9/8/14

• Entry Task

• Describe 3 important safety procedures in the science lab.

• Turn in your signed Syllabus!• Please take out your materials for the class. • 3 points if you have: comp book, calculator, 3

ring binder with dividers.

Safety

• Rules #1-53 and Contract• Safety Cartoon– For each of the numbers on the cartoon, write down

the RULE # which was violated.– http://expedioscientiam.net/school/resources/what_n

ot_to_do_600.pdf

– WORK TIME while I check materials.– TRY TO USE EACH RULE AT LEAST ONCE!!!

• http://www.youtube.com/watch?v=V-fNpaOX0-g Flinn Safety Video

Exit Task Instructions• Last 5 minutes for exit task. You may not help

each other or ask me. This is to assess how well you understood the material of the day.

• When you have an answer written down, raise your hand and I will come stamp your paper.

• OUR FIRST EXIT TASK is very low stakes – you cannot get it wrong unless you refuse to do it

• All the rest will be based on the standards you will be meeting this year

9/8/14

• Exit Task

• Is horseplay a good activity in the science lab classroom. Why or why not?

• Finish your safety cartoon as homework – due start of class tomorrow for TRADE AND GRADE.

9/9/14

• Entry Task

• Describe location and important aspects of 3 safety features in the classroom.

• Take out safety cartoon. Trade and Grade. If they have one rule # per cartoon # = 1 point.

• Safety contracts – parent signature due• Set Up Notebooks• Check out textbooks• SAFETY QUIZ – Last 10 minutes…

Set Up – stuff you will need• Notebook• Pens or pencils for writing

(no sharpies or gel pens)• Glue sticks and/or tape*• Colored pencils (no

markers)*• Scissors*• Sticky notes** We have these items in

class

Front Cover

• Only this information will be on the notebook’s front cover

• Your Name• Physical Science• Period_____

Contents page:

Table of Contents 1Date Topic Page

More Contents Pages

TOC 2 TOC 3Date Topic Page Date Topic Page

Page Numbers• In the corners after the Table of Contents,

start numbering the pages: 1 2

• Keep numbering until you reach 20

1 Interactive Notebook Plan 9/9/2014 2Left Side • Student’s Side• Write reflections• Questions you

still have• Diagrams, Data &

Graphs• Drawings or ideas

about this topic

Right Side • Teachers’ side • Title and Date• Lecture/C-notes• Textbook notes• Procedures• Information

Glossary

• Start with the last page and count back 13 full pages (26 sides!)

Glossary

Glossary A

Glossary

B C

Keep going until you write Z

Practice

• Open your glossary to the “C” page• Add this term to your glossary – Controlled

Experiment (Investigation)• Be sure to include the definition and either a

sentence using it or a picture to help you remember it– Controlled Experiment (Investigation)–

Storage

• You may either keep the notebook with you or leave it in the cupboard for your class period

• If you take it home – don’t forget to bring back every day

• If you forget your notebook, please get a C-Notes paper (in the rack) before class starts and transfer or tape the notes into you notebook.

• If you store your notebook here, please respect other students’ property by leaving the other notebooks alone!

If you are absent…

• Class notes and activities are posted on Ms. M’s teacher page

• BE RESPONSIBLE and add the information to your notebook.

9/9/14

• Exit Task

• NO exit task…we are taking a SAFETY QUIZ!

9/10/14

• Entry Task

• What is the unit of METRIC measurement for MASS? VOLUME? DISTANCE?

• How is metric different than the American system of measuring?

Today’s Agenda

• Set up notebooks• Notes on Measuring and Metric• How to Graph using variables. • Make a graph using this data.

Metric System, Measuring and Graphing

Please take notes on the next RIGHT side page in your COMP BOOK

The International System of Measurement

• a.k.a The Metric System or SI• A system of measurement based on multiples

of 10• Measurements include a prefix and base unit• Base units in the SI system include:– Length in meters– volume in liters– mass in grams

• The prefix refers to a multiple of ten

Prefixes• Kilo (k) = 1000• Hecto (h) = 100• Deka (dk) = 10• Base unit = 1• Deci (d) = 1/10 or 0.1• Centi (c) = 1/100 or 0.01• Milli (m) = 1/1000 or 0.001• ---• Micro (µ) = 1/1,000,000 or 0.000001• ---• Nano (n) = 1/1,000,000,000 or 0.000000001

KILO1000Units

HECTO100

Units

DEKA10

UnitsDECI

0.1Unit

CENTI0.01Unit

MILLI0.001Unit

MetersLitersGrams

CONVERTING with the Ladder Method

How do you use the “ladder” method?

1st – Determine your starting point.

2nd – Count the “jumps” to your ending point.

3rd – Move the decimal the same number of jumps in the same direction.

4 km = _________ m

12

3

How many jumps does it take?

Starting Point Ending Point

4.1

__.2

__.3

__. = 4000 m

• Start with what you are given. • Multiply by conversion factors until you have

changed it to the unit you want. • Example:• Problem: 1 day = ? seconds• 1 day x 24 hours x 60 minutes x 60 seconds= 1 day 1 hour 1 minute • Cross out all labels that cancel and do the

math.

1 day = 86,400 seconds

CONVERTING with Dimensional Analysis

Common units of measurements (equipment to use)--

• Mass: g, kg (triple beam balance or scale)

• Distance: mm, cm, m, km (ruler or meter stick)

• Volume: ml, L, cm3 (graduated cylinder)

• Temperature: ºC, ºF, Kelvin (thermometer)

• Time: seconds, minutes, hours (stop watch)= most common

• best answer is around 2.63 cm

• to a scientist this number means “between 2.60 and 2.70 cm.”

• the last digit, 3, representing the smallest amount, is uncertain, but it is still significant

• always “push it” one more decimal place by estimating

256.15 g

124.465 g

52.6 ml

Data Table FormatCondition(levels of the MV)

Trial 1 Trial 2 Trial 3 Average (averaged results of the RV)

Experimental Control Condition

Condition 1

Condition 2

Condition 3

GRAPHS• Make a bar or line graph of your results.• MV – conditions become the X-axis• RV – results of the trials, usually the averages only

become the Y-axis.

Manipulated VariableRe

sp

on

din

g V

aria

ble

Graph this on the graph paper!Number of Surviving Giardia Cysts

TEMPERATURE OF WATER (C)

Trial 1 Trial 2 Trial 3 Average (averaged results of the RV)

Experimental Control Condition

22 (room temp)

20 20 19 20

40 2 3 2 2

50 1 1 2 1

100 0 0 0 0

9/11/14

• Exit Task

• On which axis does the MANIPULATED VARIABLE belong?

• On which axis does the RESPONDING VARIABLE belong?

9/12/14

Today’s Agenda

• Review graphs• Review “Plan an Investigation” sheet.

Today’s Agenda

• Equipment Review – how to use triple beam balance to measure mass; graduated cylinders for liquid volume; thermometers for Celsius temperature