Chapter 3 Scientific Measurement

BIG IDEA: Quantifying Matter

Essential Questions:

1. How do scientists express the degree of uncertainty in their measurements?

2. How is dimensional analysis used to solve problems?

Week 4

Monday 9/1 - Labor Day, No School

Tuesday 9/2 - Using and Expressing Measurement: Significant Figures

c. Why must measurements be reported to the correct number of significant figures?

WARM-UP: In your Lab Journal, Write the definition of Accuracy and Precision.

ACTIVITY: Comparing Precision*

NOTES: Using Measurements

Homework: PP #4-11 on pp 68-71 & 16-17 on pg 72

Wednesday 9/3 - Using and Expressing Measurement

c. Why must measurements be reported to the correct number of significant figures?

WARM - UP: Define Significant Figure

NOTES: Using Measurement

Go over "Elements to Learn Quiz.

Homework: Using Measurement w/s.

Thursday 9/4 - Using and Expressing Measurement

Warm-up:

1. What is the total mass of three rock samples that have measured masses of 20.72g, 24.8g, and 17.35g?

2. A small rectangular container has measured dimensions of 4.25cm by 8.5 cm by 1.75cm. What is the volume of the container?

Go over Using Measurements w/s. PreLab - Mass, Volume and Density. READ Lab on pp 37-38 in LM. Complete PreLab questions:

1. What type of balance would you use to determine, as accurately as possible, the mass of a small piece of gold.

2. How could you determine the volume of a solid that has a surface too irregular to measure?

3. In this lab, how many different samples are being tested for the determination of density?

4. Why must a metal sample always be

5. What does a graph of mass vs. volume show?

Homework: READ Section 3.2 in TB. Answer #23-35 on pg 82.

Friday 9/5 - Units of Measurement

WARM-UP: Look at table 3.6 on page 81 in your text book. Answer a., b., and c; Compare, Predict, and Infer.

d. What makes metric units easy to use?

e. What temperature units do scientists commonly use?

f. What determines the density of a substance?

LAB ACTIVITY: "Mass, Volume, and Density", pg 38, LM. Complete at least through Lab Analysis step 4 in class.

Homework: Study for "Using Measurements" Quiz. Answer questions 1-16 of the Review Guide in your Lab Journal.

Week 5

Monday 9/8 - Using and Expressing Measurements

QUIZ: Using Measurements.

ACTIVITY: Trouble with Turtles

NOTES: Unit Conversions

Complete Lab Analysis and Conclusions. Research to find the density of your metal samples for #7. Complete Going Further - "Develop Hypothesis", due on Friday 9/12.

Homework: READ Section 3.3. Complete PP 36 -48 even and 43.

Tuesday 9/9 - Solving Conversion Problems

WARM-UP: The density of mineral oil is 0.835 g/cm3. What is the mass in grams of a sample of mineral oil that has a volume of 2.50 cm3?

g. What happens when a measurement is multiplied by a conversion factor?

Notes Unit Conversions, cont.

Homework: Units and Unit Conversions w/s.

Wednesday 9/10 - Solving Conversion Problems

WARM-UP: Make the following conversions:

1. 0.045 L to cubic centimeters

2. 0.035 cm to millimeters

h. What kinds of problems can you solve using dimensional analysis?

Go over worksheet. Correct "Using Measurement" Quiz. (Credit Recovery due on 9/18.)

Homework: Study for Unit and Unit Conversion Quiz. Answer questions 17-30 of the

Review Guide in your Lab Journal. ATTENTION!! Due to confusion regarding the Lab data table, the due date for the lab is temporarily on hold. IT IS NOT DUE FRIDAY!!!!

Thursday 9/11 - Scientific Measurement

Quiz: Units and Unit Conversion.

Friday 9/12 - Scientific Measurement

Test Review. Correct Quiz.

Homework: Study for Chapter 1,2,&3 Test.

Week 6

Monday 9/15 - Assessment: Chemistry as the central Science and Quantifying Matter

TEST: Chapters 1,2,&3.

Homework: Read Section 4.1. Answer questions 1-8 on pg 104.

Chapter 4 - Atomic Structure

BIG IDEA: Electrons and the Structure of Atoms

Essential Questions:

1. What components make up an atom?

2. How are atoms of one element different from atoms of another element?

Tuesday 9/16 - Defining the Atom

a. How did the concept of the atom change from the time of Democritus to the time of John Dalton?

b. What instruments are used to observe individual atoms?

NOTES: Atomic Theory Timeline

Homework: Read 4.2 Answer 9-15 on pg 109.

Wednesday 9/17 - Structure of the Nuclear Atom

c. What are the three kinds of subatomic particles?

d. How can you describe the structure of the nuclear atom?

LAB: Mass Volume and Density. DATA Analysis. Complete Lab Manual pages 39 - 44, including the "Develop a Hypothesis", (Do not do Design an Experiment). Lab due Monday.

Test Correction, Quiz Corrections. Homework: Read Section 4.3. Answer questions 26-34 on page 119.

Thursday 9/18 - Distinguishing Among Atoms

e. What makes one element different from one another?

f. How do isotopes of an element differ?

NOTES: Atomic Structure. NOTES: Atomic Mass.

Homework: Atomic Structure w/s, Part A.

Friday 9/19 - Distinguishing Among Atoms

g. How do you calculate the atomic mass of an element?

Go over Atomic Structure w/s, Part A.

Homework: Complete Atomic Structure w/s, Part B (See Thursday). Mass, Volume, and Density lab due Monday.

Week 7

Chapter 25 - Nuclear Chemistry

BIG IDEA - The Nucleus and the Structure of Atoms

Essential Questions:

1. What happens when an unstable nucleus decays?

2. How is the structure of atoms altered during fission and fussion?

3. How does nuclear chemistry affect your life?

Monday 9/22 - Nuclear Radiation

a. How do nuclear reactions differ from chemical reactions?

b. What are three types of nuclear radiation?

Go over Atomic Structure w/s, Part B. NOTES: The Nucleus. Homework: READ - 25.1. Answer questions 1-8 on pg 879. Quiz over Atomic Structure tomorrow.

Tuesday 9/23 - Nuclear Transformations

c. What determines the type of nuclear decay a radioisotope undergoes?

d. How much of a radioactive isotope remains after each half-life?

QUIZ: Atomic Structure.

Notes: Radioactive Decay.

Homework: Read Section 25.2. Answer questions 11-17 on pg 886.

Wednesday 9/24 - Nuclear Transformations

e. What are two ways in which transmutation can occur?

NOTES: Radioactive Decay cont

Complete Practice Problems 9&10 on pg 884.

Homework: READ Section 25.3. Answer questions 18-25 on pg 891.

Thursday 9/25 - Nuclear Transformations & Fission and Fusion

f. What happens in a nuclear chain reaction?

g. How do fission reactions and fusion reactions differ?

LAB Activity: Understanding Half-Life.

Correct Quiz

NOTES: Fission & Fusion.

Homework: Nucleus and Decay w/s

Friday 9/26 - Radiation in your Life

h. What are three devices used to detect radiation?

i. What are some practical uses of radioisotopes?

Go over w/s

NOTES: Nuclear Applications.

Homework: Finish Understanding Half-Life Lab. Graphing Guidelines Study for Nuclear Chemistry Quiz.

*(Pearson PS pg 18)

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