Wednesday, October 31st

AGENDA:1 – Bell Ringer2 – Homework

Review3 – Precision and

Accuracy4 – Chemical and

Physical ChangesPacket due

tomorrow

Today’s Goal:Students will be able to explain the difference between precision / accuracy and chemical / physical changes.Homework1. Classroom Materials (see p. 3)

Wednesday, Oct 31st

Objective: Students will be able to explain the difference between precision / accuracy and chemical / physical changes.

Bell Ringer (p. 15):1. What is the difference

between a physical property and a chemical property?

2. What is your definition of accurate?

3. What is your definition of precise?

4 MINUTES REMAINING…

Wednesday, Oct 31st

Objective: Students will be able to explain the difference between precision / accuracy and chemical / physical changes.

Bell Ringer (p. 15):1. What is the difference

between a physical property and a chemical property?

2. What is your definition of accurate?

3. What is your definition of precise?

3 MINUTES REMAINING…

Wednesday, Oct 31st

Objective: Students will be able to explain the difference between precision / accuracy and chemical / physical changes.

Bell Ringer (p. 15):1. What is the difference

between a physical property and a chemical property?

2. What is your definition of accurate?

3. What is your definition of precise?

2 MINUTES REMAINING…

Wednesday, Oct 31st

Objective: Students will be able to explain the difference between precision / accuracy and chemical / physical changes.

Bell Ringer (p. 15):1. What is the difference

between a physical property and a chemical property?

2. What is your definition of accurate?

3. What is your definition of precise?

1minute Remaining…

Wednesday, Oct 31st

Objective: Students will be able to explain the difference between precision / accuracy and chemical / physical changes.

Bell Ringer (p. 15):1. What is the difference

between a physical property and a chemical property?

2. What is your definition of accurate?

3. What is your definition of precise?

30 Seconds Remaining…

Wednesday, Oct 31st

Objective: Students will be able to explain the difference between precision / accuracy and chemical / physical changes.

Bell Ringer (p. 15):1. What is the difference

between a physical property and a chemical property?

2. What is your definition of accurate?

3. What is your definition of precise?

BELL-RINGER TIME IS

UP!

Wednesday, Oct 31st

Objective: Students will be able to explain the difference between precision / accuracy and chemical / physical changes.

Bell Ringer (p. 15):1. What is the difference

between a physical property and a chemical property?

2. What is your definition of accurate?

3. What is your definition of precise?

Wednesday, October 31st

AGENDA:1 – Bell Ringer2 – Homework

Review3 – Precision and

Accuracy4 – Chemical and

Physical ChangesPacket due

tomorrow

Today’s Goal:Students will be able to explain the difference between precision / accuracy and chemical / physical changes.Homework1. Classroom Materials (see p. 3)

Homework

1. Classroom Materials – Bring classroom materials from page 3 by Thursday at the latest.I will not provide calculators or writing utensils for the rest of the year.

Shout Outs

Period 1 – Yolanda

Period 2 – Malik

Period 3 – Darryl

Notes: Please take out your notebook or a piece

of binder paper

Topic: Data AnalysisDate: 10/30/2012

Independent v. Dependent

Independent Variables are causes.

Dependent Variables are effects.

Examples

You pay attention in class so you get a good grade on your quizzes.

Examples

You pay attention in class so you get a good grade on your quizzes.

Cause: Paying AttentionEffect: Good Grade

Examples

You pay attention in class so you get a good grade on your quizzes.

Cause / Independent Variable: Paying AttentionEffect / Dependent Variable: Good Grade

Examples

You eat at McDonalds every day so you gain weight.

Examples

You eat at McDonalds every day so you gain weight.

Cause: Eating at McDonaldsEffect: Gain Weight

Examples

You eat at McDonalds every day so you gain weight.

Cause / Independent Variable: Eating at McDonaldsEffect / Dependent Variable: Gain Weight

Examples

You do your homework so you get a good grade.

Examples

You do your homework so you get a good grade.

Cause: Doing your homeworkEffect: Good grade

Examples

You do your homework so you get a good grade.

Cause / Independent Variable: Doing your homeworkEffect / Dependent Variable: Good grade

Question 7 in packet (p. 7)

7. What is the independent variable in this experiment?

What is the dependent variable in this experiment?

Question 8 in packet (p. 8)

8. Identify the independent variable in this experiment:

Identify the dependent variable in this experiment:

Identify two conditions that are held constant (controlled) in this experiment:

Homework Review (p. 9)

1. The males of the species are larger than the females.2. The males’ bills are shorter and less curved than those of the female.3. The hummingbirds in the landscaped garden spent 21% of the time feeding. Of that time, 20% was spent feeding on insects and 80% was spent feeding on nectar.4. The males get nectar from a species of Heliconia in which the flowers have shorter and less curved petals.5. The females get nectar from a species of Heliconia in which the flowers have longer and more curved petals.6. The hummingbirds in the forested area spent 23% of the time feeding. Of that time, 92% was spent feeding on insects and 8% was spent feeding on nectar.

Homework Review (p. 9)

1. Identify: Which are the quantitative data in the example above? Explain. 2. Identify: Which are the qualitative data in the example above? Explain.3. Synthesize For each of the qualitative observations, give an example of how it could be transformed to quantitative data.

Homework Review (p. 10)

Homework Review (p. 10)

1. Identify: What are the independent and dependent variables in this experiment?

2. Analyze What is the relationship between the amount of antacid and the length of time to neutralize the acid?

Week 8

Weekly Agenda

Monday 10/29 – Scientific Method

Tuesday 10/39 – Types of Variables

Wednesday 10/31 – Precision & Accuracy, Chemical & Physical Changes

Thursday 11/1 – ReviewFriday 11/2 – Review

CHAMPS for October 31st

C – Conversation – No talking unless directed

H – Help – RAISE HAND for questionsA – Activity – Take notes so you can

study later.M – Materials and Movement –

Pen/Pencil, PaperP – Participation – Take notes, answer

questionsS – Success – Understand the Scientific

Method

Notes: p. 11

Accuracy – How close a measurement is to the true value.Precision – How close a measurement is to other measurements

Accurate, Precise, Both, Neither?

You shoot 1,000 baskets and make half, the other half are very close.

Accurate, Precise, Both, Neither?

You shoot 1,000 baskets and make half, the other half are very close.

Accurate

Accurate, Precise, Both, Neither?

You shoot 1,000 baskets and hit the same place on the backboard every time.

Accurate, Precise, Both, Neither?

You shoot 1,000 baskets and hit the same place on the backboard every time.

Precise

Accurate, Precise, Both, Neither?

You shoot 1,000 baskets and get all of them in.

Accurate, Precise, Both, Neither?

You shoot 1,000 baskets and get all of them in.

Accurate and Precise

Accurate, Precise, Both, Neither?

You shoot 1,000 baskets and get all of them in.

Accurate and Precise

Accurate, Precise, Both, Neither?

You make 10 perfect throws to your wide receiver but he misses all of them by different margins.

Accurate, Precise, Both, Neither?

You make 10 perfect throws to your wide receiver but he misses all of them by different margins.

Neither

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

2.7, 0, 8, 4, 2 g/mL

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

2.7, 0, 8, 4, 2 g/mL

Neither

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

2.70, 2.69, 8, 2.70, 2.71 g/mL

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

2.70, 2.69, 8, 2.70, 2.71 g/mL

Precise

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

5.00, 4.99, 8, 4.95, 5.05 g/mL

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

5.00, 4.99, 8, 4.95, 5.05 g/mL

Accurate and Precise

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

5.00, 4.50, 4.95, 5.05, 5.50 g/mL

Accurate, Precise, Both, Neither?

The density of an object is 5 g/mL. You do an experiment to measure the density and get the following values:

5.00, 4.50, 4.95, 5.05, 5.50 g/mL

Accurate

p. 11

p. 11

p. 11

p. 11

Question 6 in packet (p. 7)

6.What is the independent variable in this experiment?

What is the dependent variable in this experiment?

Identify one thing that is held constant.

Question 6 in packet (p. 7)

6. What is the independent variable in this experiment?Type of soil.What is the dependent variable in this experiment?

Identify one thing that is held constant.

Question 6 in packet (p. 7)

6. What is the independent variable in this experiment?Type of soil.What is the dependent variable in this experiment?Water that flows throughIdentify one thing that is held constant.

Question 6 in packet (p. 7)

6. What is the independent variable in this experiment?Type of soil.What is the dependent variable in this experiment?Water that flows throughIdentify one thing that is held constant.Amount of water. Why?

Question 7 in packet (p. 7)

7. What is the independent variable in this experiment?What’s in the containerWhat is the dependent variable in this experiment?

Question 7 in packet (p. 7)

7. What is the independent variable in this experiment?What’s in the containerWhat is the dependent variable in this experiment?Temperature rise

Question 8 in packet (p. 8)

8. Identify the independent variable in this experiment: Amount of saltIdentify the dependent variable in this experiment:

Identify two conditions that are held constant (controlled) in this experiment:

Question 8 in packet (p. 8)

8. Identify the independent variable in this experiment: Amount of saltIdentify the dependent variable in this experiment: Plant heightIdentify two conditions that are held constant (controlled) in this experiment:Same height at start of experiment, same amount of water

Exit Ticket (p. 16)

Design an experiment that determine whether studying results in better grades.

1. What is your independent variable?2. What is your dependent variable?3. What is your control?4. Are your observations qualitative or

quantitative?