Do Now

List 5 safety rules one might encounter in the lab!!

What day do you have lab??(First lab missed = warning, Second time = cut)

Objectives

SWBAT… Explain the rules that must be followed

in our classroom.

Understand the importance of safety in lab.

Identify different situations in which safety precautions should be taken.

Lab Science…? What is a lab?

Why do we have labs?

When do we have them?

How long do we get to complete them?

Lab partners?

Safety Contracts!

****All students MUST have a signed safety contract in order to participate in lab! Anyone who fails to hand in this contract must sit out during the lab and will therefore receive a 0 for that lab. Please get them in!!!****

Lab Safety TELL ME ANY TIME THERE IS ANY ISSUE

INVOLVING SAFETY IMMEDIATELY!!!!

Follow Directions!! Only do what the lab procedure says to do.

NEVER TASTE A CHEMICAL!! Don’t touch it with your hands, apply make-up, or eat or drink during lab.

Keep all lab equipment clean and tidy. A clean workspace is a safe workspace!

Never pour chemicals back into “stock” bottles

Lab Safety Long hair MUST be tied back.

You must wear close-toed shoes – no flip flops

Test tubes should always face AWAY from you.

All broken glass should be disposed of in the broken glass container.

Check with me before dumping anything down the drain!!

No “horseplay” during lab please!

Lab Safety

No lab materials should be taken from the laboratory room unless you are told by me to do so!

Safety goggles must be worn at ALL TIMES, and anyone who takes them off will receive a zero for that lab.

Safety Scavenger hunt! Please draw a quick sketch of this room. (note where the door is and where

the board is)

Get up out of your seat and find the following pieces of safety equipment and add them to your sketch! (Hint: There should be 12 items!)

Happy Hunting!!

1. Fire extinguisher2. Emergency shower3. Emergency eye wash4. Goggles5. Broken glass bin6. Phone (in case you ever need to call the office)7. Emergency gas shut-off (it’s a big red button)8. Chemical Hood9. Safety Gloves10. Water supply11. Paper towels for clean-up12. Emergency Button

Turn to the person sitting next to you…

Please work on the worksheet that you have been given.

Look at each picture and try to determine what is wrong. Then explain the SAFE way to perform the experiment being pictured.

Do Now

What is biology?

How does Biology impact your life? List some examples!

Safety Review

What are they doing wrong in the picture?

Objectives

SWBATIdentify different fields of biology.

Understand how and why different fields of biology are studied.

Explain the different qualities of a scientist.

Why Biology?!

https://www.youtube.com/watch?v=VgTPg99V_JM

What is Biology?

The study of life or once living things!

Lets further define biology by creating a word cloud! http://www.tagxedo.com/

 

Think! What types of things would a biologist

study? Make a list!

Depending on what they study, biologists are given specific names. Ex: Does anyone know the name of a biologist

who studies or works with cancer?

What must they know about biology to do their job?

Fields of Biology Lets try to come up with a few things a

biologist might study!

What do all scientists have in common?

All scientists share similar qualities

They are…Curious: Always asking questions

Observant: Always looking closely, notice details

Creative: Use what they know to form explanation for pattern, create test

Skeptical: Don’t accept explanation or answer unless there is EVIDENCE!!

*They all go through the same process in their line of work. Can you guess what it might be?

Do Now

Match the scientists with their job descriptions on the sheet I provided you! You may work with one other person.

Objectives

List the steps of the scientific method.

Differentiate between observation vs. inferences

The Rope! One Person in each group must tie the ends of the

string into loops around each wrist (big enough to put your hands through, but small enough it wont fall off)

The other member must place one loop around one hand ONLY!

Then place string between your partners body and their connected hands, attach the other end of the string around the other wrist.

Now you must devise a plan to separate yourselves from each other WITHOUT removing the string around your wrists!

No Cheating off other groups!

Good Luck!

From a loop in the rope of person 2 and pass it through person 1’s wrist as shown….

Finally pass the loop from Person 2’s string over the hand of person 1!

Scientific Investigations Let’s list the steps we went through in our

scientific investigation

THE CUBES! FIRST RULE: Do not touch the cubes! Let’s brainstorm: What questions do you have

about the cubes?

The cubes Cont.

What is on the bottom of the cube? What is evidence? What does the word

mean? Using data (observations), try to convince

me and your classmates what is on the bottom of the cube. Provide evidence!

Pick up the cubes… Go ahead!

There is no way of knowing the absolute answer to a scientific question.

WHAT? MS. P? ALL THAT FOR NOTHING….

Nature of Science

The Scientific Method1. Identify the problem- observe and ask questions.

2. Research and form a hypothesis

3. Test your hypothesis- experimentation

4. Collect and record DATA

5. Conclusion- Analyze your data. Was your hypothesis correct?

1. Identify the Problem (Observe and ask Questions)

All scientists make observations that lead to different questions,

Without these questions we can’t experiment and without experimentation we wouldn’t have ANYTHING!

What is an observation?

Lets make some observations about what Ms.P is holding…

Observations vs. Inferences

Observation- direct way of gathering information in an organized way.

Ex: There is one smart board in the room.

Inference- taking observations and making a logical conclusion

Ex. When you entered the room, you inferred that the person standing in front of the door/or room is the teacher.

These circles are not moving, your brain is making them appear to move. Try

focusing on one circle. It will stop moving.

Look at the chart and say the color NOT the word….

Your right brain tried to say the color, but your left brain was reading the word.

Questions1. Are there cars parked on the sides of the road?

2. What color is the pickup truck driving in the road?

3. Any minivans around?

4. What does the blue sign say?

5. What's the speed limit?

6. Are there any pedestrians on the road?

Answers1. Yes

2. Blue

3. Yes

4. Yard Sale

5. 35 mph

6. No

Lets do some practice!

Make a list of observations in your notebook as you watch this scene!

https://www.youtube.com/watch/?v=jEjUAnPc2VA

Lets draw some inferences from our observations…

What is this man's profession?

What were the clues that lead you to that conclusion? 

What do you know about the events of this movie? 

What predictions did you correctly make as you watched this movie?  

What city is the setting?  How do you know? 

What graphics were important in this film to let you know what was going to happen next? 

What clues did the sounds in this movie provide? 

Do Now Without using your notes, try to list the

steps of the scientific method.

Make 3 observations and 3 inferences from the picture.

Do Now

Being working on the worksheet I have given you to review observations vs. inferences.

Once you are done, take out your guided notes.

Objectives

Determine how to write a testable hypothesis

Identify the five components of an experiment.

Compare and contrast quantitative vs. qualitative data

2. Determine what is already known and form a hypothesis

How might we determine what is known?1) Read Journals and Articles

2)Ask other scientists

3) Observe environment/surroundings

Forming a Hypothesis Hypothesis - a testable explanation of a

situation.

Hypothesis that are supported through experiments and data are then accepted in the scientific community.

Usually written in an “if… then” statement.Example:

○ If salt is added to water that is being heated then the water will boil at a faster rate.

Example A worker on a fish-farm notices that his

trout seem to have more fish lice in the summer, when the water levels are low, and wants to find out why. His research leads him to believe that the amount of oxygen is the reason - fish that are oxygen stressed tend to be more susceptible to disease and parasites.

Water levels affect the amount of lice suffered by rainbow trout.

Rainbow trout suffer more lice when water levels are low

Now there is some directionality, but the hypothesis is not really testable,

Rainbow trout suffer more lice in low water conditions because there is less oxygen in the water

This is a testable hypothesis - he has established variables, and by measuring the amount of oxygen in the water, eliminating other controlled variables, such as temperature, he can see if there is a correlation against the number of lice on the fish.

Identify the hypothesis A study is being done on the increase in cases

of skin cancer. It has been said that skin cancer shows a direct correlation with exposure to UV light. If skin cancer is related to ultraviolet light, then people with a high exposure to UV light will have a higher frequency of skin cancer.

Is this hypothesis a testable hypothesis?

Which hypothesis are testable?

Chocolate may cause pimples.

Bacterial growth may be affected by temperature.

Temperature may cause leaves to change color.

Experiments What is involved in an experiment?

1. Independent Variable: variable being tested

2. Dependent Variable: variable being measured

3. Control Group: group that remains the same

4. Experimental Group: Group that is manipulated or changed.

5. Constants: factors that remain the same throughout the entire experiment.

Example:

Hypothesis: Puppies that are given vitamins gain more weight.

Control Group: Puppies that aren’t given vitamins.

Experimental Group: Puppies that are given vitamins.

Your independent variable is vitamins or no vitamins. Your dependent variable is the weight gain.

Constants: Breed of dog, amount of vitamin, type of vitamins

http://www.quia.com/pop/184568.html?AP_rand=1843827016

Homework!!

For homework you have a worksheet on experiments. This will be due the next class.

Do NowOn a separate piece of paper, rate your comfort and understanding of how to use the microscope, identifying the different parts, and using the microscope on a scale of 1-5.

1= Poor2= Fair

3= Good4= Very Good5= Excellent

Once you are done, hand in the piece of paper to Mr. Naturale. Then take out your Simpson Homework!

Collect and gather data Data- information gained from observations.

Quantitative Data- measurements of time, temperature, length, or other factors.

Qualitative Data- descriptions of what our senses detect.

Freshman ClassQualitative Data:

Friendly Demeanors

Civic Minded

Environmentalists

Positive school

spirit

Quantitative Data:

672 Students

364 girls, 278 boys

68% on honor roll

150 Students accelerated in Science

Let’s practice!

Walk around the room and collect qualitative and quantitative data:Find 10 or more pieces of qualitative dataFind 10 or more pieces of quantitative data

Organize your information in a data table!

Gather both qualitative and quantitative data about the picture below.

Do Now

What are some ways to present data?

Organize data into a chart Take data from chart and create a graph

Bar graphLine graphPie chart

5. Analyze Data to from a Conclusion

We have to do something with our data! What can we conclude from this graph?

Report your conclusion! After experimenting you must come to some type of

conclusion either disproving or proving your hypothesis!

Conclusions in the scientific world are usually published so others can review the results and discuss the merit of the experiment.

The Scientific Method

https://www.youtube.com/watch?v=zrzMhU_4m-g

Do NowTake a few minutes and write down the topics that you are unclear about for tomorrow’s quiz, so that we can review.

Scientific MethodDifference between observations vs inferences. Hypothesis. “If…Then” statement. Five components of an experiment

Independent variableDependent VariableControl GroupExperimental GroupConstants

Difference between qualitative and quantitative Data

Do Now

You have five minutes to review you notes. If you have any questions, please don’t hesitate to ask us!! Good Luck!

When you are finished, hand in your quiz and take out your conversion worksheets. Try to attempt some of them. I will come around and help