Tuesday Sept 4 th or Weds Sept 5th

Tuesday Sept 4th or Weds Sept 5th• Please write the underlined words in your

planners

Tuesday/Wednesday Thursday/Friday

Put together test folders, go over safety quiz, take notes on scientific method and IV and DV, IV and DV stations

HW: Scientific Questions and Variables wkst

Take notes on scientific questions and hypotheses, hypothesis stations

How do you think you did on the Safety Quiz?

• 1st Hour: 96.7% • 2nd Hour: 97.8%• 3rd Hour: 92.2%• 4th Hour: 96.7%• 6th Hour: 92.2%• 7th Hour: 94.4%

Add Safety Quiz and BOY Exam to your folder

• Complete the Quiz and Test Tracker for the BOY exam and the Safety Quiz

• Put the BOY exam and Safety Quiz in the prongs of your folder

September 4th Remember to write the questions and your answers in your lab book.

Do Now:1. What do you think the scientific method is?2. Why do scientists have experiments?

Date Table of Contents Page Number

9-4-12 Scientific Method Intro

Whatever page you’re on

When we take notes, please write down all the red words.

• If it’s not in red, you probably don’t need to write it.

What is the scientific method?

• Scientific Method: the way scientists solve problems and make experiments

What can we use the scientific method for?

• We can use it to conduct experiments, learn new information, and solve problems.

Why is the scientific method important to you?

• You will use it all year in every one of your labs.

• You will need to know the scientific method for all of your science classes in the future.

• You will need to know and use the scientific method when you create your own experiment at the end of the year.

Steps of the Scientific Method

Steps of the Scientific Method1. Make an observation and ask a question

about it.2. Research if needed3. Make a hypothesis4. Test the hypothesis in an experiment5. Record and analyze the data6. Write a conclusion to share your results

Scientific Method in Your Life1. Make an observation

and ask a question about it.

2. Research if needed

3. Make a hypothesis

4. Test the hypothesis in an experiment

5. Record and analyze the data

6. Write a conclusion to share your results

1. My room is dirty. Will my mom notice if I don’t clean my room?

2. Last time I didn’t clean my room, my mom saw all my clothes on the floor.

3. If I pick up my clothes, then my mom won’t notice that the rest of the room isn’t clean.

4. I picked up my clothes and she didn’t notice that it was dirty.

5. …6. …

Now use the SM on the scenario you are given about Lil Wayne

Make an observation and ask a question

Steps of the Scientific Method

Research

Make a hypothesis

Test the hypothesis in an experiment

Record and analyze the data

Write a conclusion to share the results

Independent and Dependent Variables

• Understanding IV and DV is very important for understanding the scientific method.

• Do you know what an independent variable is?

• Do you know what a dependent variable is?

Independent and Dependent Variables

• Independent variable: This is what you change in an experiment.

• Dependent variable: This is what you measure in an experiment.

To identify the IV and the DV:

• Ask yourself what is being changed? (IV)

• Ask yourself what is being measured? (DV)

What is the IV and DV?Independent variable: how much light the plant gets.

Dependent variable: how tall the plant grows

What is the IV and DV?

• Studying a lot and improving your grades

IV: how much you study

DV: Your grades

What is the IV and the DV?

• Marco wanted to know if sleeping 9 hours every night makes people have more positive attitudes.

IV: amount of sleep

DV: positive attitudes


• Will you grow taller if you drink more milk?

IV: how much milk you drink

DV: how tall you grow


• Do people run faster with Nikes or Jordans?

IV: Type of shoe

DV: how fast people run

Add the red words to your glossary• Remember to add the word and the page

number• You do not need to write the definition in the

glossary

• Scientific method• Independent variable• Dependent variable

IV and DV Stations

On the same pages as your do now and notes, please number from 1 to 10, skipping two or three lines between each number. Label IV and DV like below.

1. IV: DV:

2. IV: DV:

IV and DV Stations

• You will be going to stations around the room with your tablemates. For each station you will see a scientific question. Your job is to work together and identify the IV and DV and record it in your lab book.

• Make sure you are recording each station number at the correct spot in your lab book.

Complete “Scientific Questions and Variables” worksheet as homework

Homework is due next time you have this class.

Thursday Sept 6 or Friday Sept 7• Remember to write the questions and your answers in your lab book.

• Do Now:– 1. Why is the scientific method important?– 2. How can you tell independent and dependent

variables apart?Get homework out and keep it on your desk.

Date Table of Contents Page

9-6-12 Scientific Questions and Hypotheses

Whatever page you’re on

Go over homework answers together

Scientific Questions

• A good scientific question needs:–An independent variable–A dependent variable–To be measureable • heavier, taller, faster, increased• NOT prettier, better, healthier


• Example: Will the amount of sunlight a plant receives affect how tall the plant grows?– Why is this a good example?

What’s the IV?What’s the DV?Is it measureable?


• Does more acidic soil cause plants to grow fewer leaves?– Why is this a good example?



• Do Jordans or Nikes make you run faster?– Why is this a good example?



• How many miles are between Oklahoma City and Tulsa?– Why is this a bad example?



• Should I cut my hair?– Why is this a bad example?



• Does wearing makeup make you prettier?– Why is this a bad example?


How can we make it better?


• Does eating breakfast make you better at catching a baseball?

• Why is this a bad example?


How can we make it better?


• With your group, write a list of three GOOD scientific questions.

• Make sure they are measureable and have an IV and DV

Hypotheses

• A hypothesis is an educated guess. It’s like a prediction.

• It is an If/then statement• It is always in this format: “If (independent

variable) then (dependent variable).• Example: If you play violent video games,

then you will have higher blood pressure.

Hypotheses

• How to turn a scientific question into a hypothesis:– 1st identify the IV and DV– 2nd think about your prediction– 3rd begin with “If” and the IV– 4th finish it with “then” and the DV

Hypotheses

• Do Jordans or Nikes make you run faster?• IV: type of shoe (Nikes or Jordans)• DV: how fast you run• My prediction: I think that Nikes will help you

be faster.• Hypothesis: If you wear Nikes, then you will

run faster.

Hypotheses

• Does a plant grow taller when it is given more water?

• IV: how much water it gets• DV: how tall the plant grows• My prediction: I think that plants given more

water will grow taller.• Hypothesis: If a plant gets more water, then it

will grow taller.

Hypotheses

• Does eating breakfast lead to higher test scores?

• IV: eating breakfast• DV: test scores• My prediction: I think that eating breakfast

will lead to higher test scores.• Hypothesis: If you eat breakfast, then you will

earn higher test scores.

Add the red words to your glossary

• Remember to add the word and the page number

• You do not need to write the definition in the glossary

• Scientific question• Hypothesis

Hypothesis Stations

• On the same page as your do now and your notes, please number from 1 to ___, skipping two or three lines between numbers.

Hypothesis Stations

• You will be going to stations around the room with your tablemates. For each station you will see a scientific question. Your job is to work together to write a hypothesis for each scientific question.

• Make sure you are recording each station number at the correct spot in your lab book.

Exit Slip• Label your note card with your FIRST AND

LAST NAME, DATE, and HOUR. Labeling this correctly is worth one point.First and Last Name Date Hour1.

2.

3.

4.

5.

Exit Slip

• Clear everything off of your table. Close lab books and put them on the floor.

• NO TALKING, at all. If you have a question raise your hand SILENTLY and wait for the teacher.

• If it is multiple choice, you can just write the letter of the answer.

Question 1

• What makes a good scientific question?A. It is measureable.B. It has a dependent variableC. It has an independent variableD. All of the above

Question 2

• What is an independent variable?A. What is measured in an experimentB. What is changed in an experimentC. An educated guessD. What is always kept the same in an

experiment

Question 3

• What is the dependent variable in this scientific question?: “Do Jordans or Nikes make you run faster?”

A. Type of shoeB. How fast you runC. If I wear Jordans, then I will run faster.D. The track you run on

Question 4

• What is the best written hypothesis for this scientific question? “Do Jordans or Nikes make you run faster?”

A. Wearing Nikes makes you run faster.B. If I run faster, then I’m wearing Nikes.C. If I wear Nikes, then I will run faster.D. If I wear Nikes I’m going to run faster.

Question 5

• In one or two sentences, explain why the scientific method should be important to you.

Documents

Tuesday Sept 4 th or Weds Sept 5th