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1st 6 weeks Safety and Metric System 1st 6 weeks Safety and Metric System

1st 6 weeks Safety and Metric System - PowerPoint Presentation

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1st 6 weeks Safety and Metric System - PPT Presentation

Lessons Ms Johnson Today BELL WORK Get out your planner Find your passport Finish decorating the front cover Finish start your goals page Finish start your Tchart likes vs dislikes ID: 721498

lab safety laboratory science safety lab science laboratory liquid read rules chemicals graduated equipment beam cylinder thermometer object triple

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Slide1

1st 6 weeksSafety and Metric SystemLessons

Ms. JohnsonSlide2

Today:BELL WORKGet out your planner. Find your passport. Finish decorating the front cover.Finish/ start your goals page. Finish/ start your T-chart. (likes vs. dislikes)Slide3

VIDEO CLIP http://www.youtube.com/watch?v=47rQkTPWW2IHOW DOES THIS RELATE TO WHAT WE TALKED ABOUT YESTERDAY?Slide4

What is SCIENCE?Slide5

SCIENCEA way of learning more about the natural world that provides possible explanations to questions and involves using a collection of skills.

Science helps us answer questions and solve problems.

Science is the process of trying to understand the world.Slide6

ObservationBackground Information: One of the most important skills in science is that of OBSERVATION. Most of the time we think of observation as something we do with our eyes; when we see something, we observe it. However, all five of our senses can be used to make observations: sight, hearing, taste, touch, and smell. We can make two kinds of observation: those that are FACTS, and those that are OPINIONS. Facts are those things that are true for everybody. Opinions are beliefs based on personal preference.Slide7

Observation ActivityProcedure: 1. Close your eyes. Keep them closed! 2. Use your sense of TOUCH to observe the object I put in you hand. 3. Write at least three sentences describing what you observed. Slide8

4. Use your sense of HEARING as you LISTEN the object. 5. Write at least three sentences describing what you observed. Slide9

6. Use your sense of SIGHT to observe the object. 7. Write at least three sentences describing what you observed. Slide10

8. Use your sense of SMELL to observe the object. 9. Write at least three sentences describing what you observed. Slide11

10. Place the object in your mouth. Use your sense of TASTE to observe it. 11. Write at least three sentences describing what you observed. Slide12
Slide13

GUIDING QUESTIONSDescribe the purpose and care of commonly used pieces of lab safety equipment such as: triple beam balance, graduated cylinder, thermometer, spring scale, and ruler.Slide14

GUIDING QUESTIONSExplain the purpose of at least five lab safety rules.Slide15

GUIDING QUESTIONS What measuring tools would you use to determine the following physical properties of matter: length, temperature, mass, volume, weight and density?

What tools are used to determine the boiling point of a substance? Slide16

GUIDING QUESTIONS Demonstrate the ability to find the volume of a regular and irregular solid.Slide17

Lab SafetyOBJECTIVES -

1. The

locations and usage guidelines of safety equipment in the classroom

2. There are lab safety rules that must be followed in the lab

3. Understand purpose of MSDS -

M

aterial

S

afety

D

ata

S

heets. Slide18

Bell Work GET OUT YOUR SIGNED SAFETY CONTRACT AND CLASS RULES.Grab your passport.

What would you do if one of your classmates was injured in class?

Work with your groups and develop a set of 3 guidelines for working in a science lab.

Write your 3 guidelines in your passport. Slide19

Video ClipSafety Warm Up 1: United Streaming Video Segment: Safe Science: 3:40Slide20

Sixth Grade Science Laboratory Safety Rules I’m Labbie, your laboratory retriever. When you see me, it’s a friendly reminder to follow all lab rules and safety procedures.Slide21

Sixth Grade Science Laboratory Safety Rules Scientific laboratory is a place of adventure and discovery. Some of the most important events in scientific history have happened in laboratories. The antibiotic powers of penicillin were discovered in a laboratory. Plastics used today for clothing and other products were first made in a laboratory. The list is endless.Slide22

Sixth Grade Science Laboratory Safety Rules One of the first things any scientist learns is that working in the laboratory can be an exciting experience. However, the laboratory can also be quite dangerous if proper safety rules are not followed at all times. In order to prepare yourself for a safe year in the laboratory, read the following safety rules. Then read them a second time. If you do not understand each rule, ask your teacher to explain any rule that is unclear.Slide23

SAFETY CONTRACT ENGLISHhttp://www.flinnsci.com/Documents/miscPDFs/safety_contract_MS.pdf

SPANISH

http://www.flinnsci.com/Documents/miscPDFs/safety_contract_MS_SP.pdfSlide24

Safety ContractDress CodeTie back long hair.

Remove dangling jewelry.

Do not wear loose, billowy clothing.

Wear closed-toed shoes; sandals don’t protect your feet.

Laboratory Behavior

Read all directions for an experiment several times. Listen carefully during the pre-lab. Ask questions if you do not understand any part of the experiment. Follow the directions

exactly

as they are written.

Make sure the work area has been cleared of purses, books, jackets, etc.

Before starting the lab, be aware of all safety precautions and know the location of all safety equipment.

Do not speak loudly or engage in horseplay in the laboratory.

Never eat or drink in the laboratory.Slide25

Safety ContractSafety During the Laboratory LessonNever perform activities that are not authorized by your teacher

.

Do not handle any equipment unless you have permission.

Wear safety goggles, lab aprons, and protective gloves when required. Take extreme care not to spill or break any material in the laboratory.

Clean-up procedure

Follow your teacher’s instructions for proper disposal

of chemicals;

do not

pour anything down the drain unless

instructed to do so.

Do not work alone in the lab.

Report all accidents to your teacher

immediately

.

End-of-Experiment Rules

Clean up your work area and return all equipment to its proper place.

Wash your hands after every experiment.Slide26

Safety ContractYou will now receive your personal safety contract. This MUST be signed and returned by tomorrow.

You MUST read over the rules and sign with your parent.

IF YOU DON NOT HAVE YOUR SIGNED SAFETY CONTRACT, YOU WILL NOT BE ABLE TO PARTICIPATE IN LABS. NO EXCUSES.

If you lose your contract you may print another one from the notes on the website.Slide27

Safety Spots in Our ClassEyewash fountain demonstration.

Show location of fire blanket, fire extinguisher.

Aprons and gloves.

Goggle cleaning station. Slide28

Map of ClassroomDraw a map of the classroom. Label all of the safety spots.(Fire blanket, goggle station, fire extinguisher, eyewash station)Label all the exits. Slide29

RECYCLING AND CONSERVATION What substances can be washed down the drain?

Never return unused chemical to an original jar (called a “stock jar” or the “reagent jar”).

Review types of items that can be recycled: glass, paper, aluminum, certain plastics, etc. (NOT WOOD)Slide30

MSDSMaterial Safety

D

ata

S

heets. Slide31

Concerns & Issues for OUR Class

General hazard warning

When you see this symbol, triple check for safety issuesSlide32

Goggle UseWear goggles when using:

Chemicals

Sharp objects

Fire

NON-NEGOTIABLE

It’s a LAW!Slide33

FireFire hazard

Use goggles

Tie back long hair

Tie back loose clothingSlide34

ElectricalElectrical Hazard

Watch for water

Be aware of cordsSlide35

PoisonPoison Hazard

Wear goggles

Read label

Keep away from mouthSlide36

CorrosiveCorrosive Hazard

Wear goggles

Read labels

Wear apron

Keep off skinSlide37

Activity- Safety Symbolshttp://www.science-class.net/Graphic_Organizers/GO_wheel_safety.pdfSlide38

What is WAFT?TEST FOR ODORSOdors from chemicals may be dangerous. To test

an odor:

1. Hold the test tube

2. Keep the test tube several inches away

from your nose

3. Waft (fan with your hand) the fumes

coming from the test tube toward your nose.Slide39

Online Safety Quiz

http://www.edquest.ca/component/content/article/110

http://school.discoveryeducation.com/quizzes28/mpoarch/SafetyQuiz.htmlSlide40

Dear Mad Scientist Safety Letter:You are the Mad Scientist. Yesterday you received this note in the mail. Now you need to reply providing the science student with the information they requested.

 

Dear Mad Scientist,

 

School starts in a few days. I am excited and nervous. I love science and can’t wait to get into science lab! Last year I got in trouble a lot for playing with the materials and making my own directions. What should I do so I don’t get in trouble this year?

Sincerely,

Curious Kate

 

Dear Curious Kate,

 

 

 

Sincerely,

Mad ScientistSlide41

Lab Equipment

OBJECTIVES

Various pieces of equipment are used in the lab

There is a proper way to use and care for all pieces of lab equipmentSlide42

Your Journals Yes, journals are a type of lab equipment.You are going to be keeping a science all year.This journal will be a place for NOTES and VOCABULARY, as well as some LABS and ACTIVITIES.You will have quizzes over the information in your journal. You must bring your journal to class EVERYDAY. Slide43

Triple Beam BalanceMeasuring massSlide44

Triple Beam BalanceExpert Information: Balances are used to measure mass. The units of mass are grams (g) and kilograms (kg). The instrument you will use most often to measure mass is the triple beam balance.

The triple beam balance gets its name from three long, horizontal metal bars called

beams

connected to a

pointer

on the right-hand side. The pointer should always be at

zero point

before obtaining the mass of any object. On each beam is a

rider

that slides across the beam. Slide45

Before using a triple beam balance, you should remember the following: Slide all riders back to “0” on the beams before massing any object. Use the adjustment knob to zero out the instrument if necessary.

Place the object to be massed on the

pan

. Chemicals should be placed on waxed or filter paper before massing.

Gently slide the riders along the beams while determining mass. The pointer will swing

above and below the zero point while you are adjusting the riders.

Make sure each rider is in a notch before reading.

The mass of the object will be the sum of the masses on all beams.

Always return the riders to zero BEFORE removing the object from the pan.Slide46

Online Practice – Triple Beam Balance

http://www.wisc-online.com/objects/ViewObject.aspx?ID=GCH202Slide47

Graduated CylinderSlide48

Graduated CylinderExpert Information: A graduated cylinder is used to measure liquid volume. The unit is the milliliter, abbreviated mL

. To use a graduated cylinder, you must remember the following:

Place the graduated cylinder on a flat surface and view the height of the liquid in the cylinder with your eyes directly level with the liquid. The liquid will tend to curve downward. This curve is called the

meniscus

.

The graduated cylinder will usually have heavy markings at 10, 20, 30 . . . milliliters. There are usually smaller markings in between the larger units called

graduations

. Read the graduated cylinder to the nearest tenth of a milliliter (31.5 mL or 30.0 mL). Slide49

MeniscusNotice how the liquid curves up the side of the graduated cylinder. To get the most accurate reading, read the measurement at the bottom of

the curve, or

meniscus

.Slide50

Thermometer

Using_a_Thermometer.doc

Measures temperature CelsiusSlide51

ThermometerExpert Information: A thermometer is a tool or instrument used to measure temperature.

Thermometers should be handled with care. They are tubes of glass filled with either mercury or colored alcohol. At the bottom of the tube is a wider part called the

bulb

. When the bulb is heated, the liquid in the bulb expands or gets larger, causing the liquid to rise in the tube. When the bulb is cooled, the liquid contracts or gets smaller, causing the liquid to fall in the tube. The bulb at the base of the thermometer should be immersed in the material to be measured. To use a thermometer, you must remember the following:

The thermometer does not need to be shaken down.

If you are measuring the temperature of a material that is being heated, make sure the thermometer bulb is not resting on the bottom of the container.

To read the temperature, your eyes should be level with the liquid in the thermometer.

Read the temperature at the closest line to the liquid.Slide52

ThermometerAfter determining the number of degrees, establish the value of the lines between the numbers.

Read the temperature to the nearest degree using the lines between the numbers. Thermometers are graduated differently so you must determine what value each smaller division represents. In science, we will use only the

Celsius scale (ºC)

. The unit must follow all numbers. EX: 34

C

42ºC Small divisions are each two degrees

11ºC Small divisions are each one degree.Slide53

TemperatureDegrees Celsius °C

0oC - freezing point of water

100oC - boiling point of water

23 oC - room temperature

37 oC - human body temperatureSlide54

Metric Ruler

Using_the_Metric_Ruler.docSlide55

Metric RulerExpert Information: The standard unit for measurement of length in the metric system is the

meter

.

In science lab, most measurements are much smaller than a meter.

A

metric ruler

is the standard instrument for measurement in the scientific laboratory.

On a metric ruler, each individual line represents a millimeter (

mm

). The numbers on the ruler represent millimeters (

mm

). There are 10 millimeters for each centimeter. Slide56

Metric Ruler To read a metric ruler, each individual line represents .10 (1/10) of a centimeter,or 1 millimeter. Notice when converting from centimeters to millimeters,the decimal point is moved one place to the right. To convert millimeters,to centimeters, move the decimal point one place to the left. Slide57

LengthMeters (m)

Millimeters (mm)

Centimeters (cm)

Kilometers (km)Slide58

BeakerHolding liquid and dry chemicals

Mixing chemicals

Measuring large amounts of chemicalsSlide59

Spring ScaleUsed for forceSlide60

EQUIPMENT CHART

Equipment

Picture

use

Stopwatch

SECONDS, MINUTES

Timing short periods of time

Beaker- mL

Holding liquid and dry chemicals

Mixing chemicals

Measuring large amounts of chemicals

Graduated Cylinder

mL

Measuring small amounts or chemicals

Meter Stick or Ruler

mm, cm

Measuring length and distance

Spring Scale

N

Measuring force

Thermometer- Celsius

Measuring heat

Triple Beam Balance -grams

Measuring mass