PES Skill Sheets.book - Capital High School

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Name: Date: 21.2 Salinity and Concentration Problems Bodies of water like ponds, lakes, and oceans contain solutions of dissolved substances. Often these substances are in small quantities, measured in parts per thousand (ppt), parts per million (ppm), and parts per billion (ppb). This skill sheet will provide you with practice in using these quantities and in doing calculations with them. Unit conversions Table 1 below provides unit conversions that will be helpful to you as you complete this skill sheet. Review: working with small concentrations When working with small concentrations, remember that the units of the numerator and denominator must match, as shown in the examples below. A. Parts per thousand (ppt) Example: 0.009 grams of phosphate in about 1000 grams of oxygenated water makes a solution that has an phosphate concentration of 0.009 ppt. B. Parts per million (ppm) Example: A good level of oxygen in a pond is 9 ppm. This means that there are 9 milligrams of oxygen for every one liter (1000 grams) of oxygenated water. C. Parts per billion (ppb) Table 1: Unit Conversions Milligrams = Grams = Kilograms = Liters of water 1 0.001 0.000 001 0.000 001 10 0.01 0.000 01 0.000 01 1,000 1 0.001 0.001 1,000,000 1,000 1 1 1,000,000,000 1,000,000 1,000 1,000 9 ----------------------------milligrams 1 liter 0.009 grams ---------------------------- = 0.009 ppt 1,000 grams = 9 ----------------------------milligrams = -------------------------------------------------- 9 milligrams = 9 ppm 1,000 grams 1,000,000 milligrams Example: The concentration of trace elements in seawater is very low. For example, the concentration of iron in seawater is 0.06 ppb. This means that there are 0.06 mg of iron in 1,000 liters of water. One thousand liters is equal to 1,000 times 1,000 grams of seawater. 0.06 ------------------------------------milligrams 1,000 liters ------------------------------------------------ 0.06 milligrams 0.06 milligrams 0.06 milligrams = = --------------------------------------- = ------------------------------------------------------------- = 0.06 ppb 1,000 × 1,000 grams 1,000,000 grams 1,000,000,000 milligrams 21.2
Page 2 of 3 Work through these example problems and check your answers. Then you will be ready to try the practice problems on your own. • There are 16 grams of salt in 984 grams of water. What is the salinity of this solution? Solution: • A liter of solution has a salinity of 40 ppt. How many grams of salt are in the solution? How many grams of pure water are in the solution? Solution: • You measure the salinity of a seawater sample to be 34 ppt. How many grams of salt are in this sample if the mass is 2 kilograms? Solution: First, remember that there are 1,000 grams per kilogram. If a solution is given in parts per thousand, you can think of it as “grams per 1,000 grams” or “grams per kilogram.” Therefore, you can set up a proportion like this: Next, solve for x. 16 grams salt 16 grams salt salinity = = = 16 ppt 984 grams water + 16 grams salt 1,000 grams solution 40 grams salt 40 grams salt 40 ppt = = 1,000 grams solution 40 grams salt + x grams water 1,000 grams solution = 40 grams salt + x grams water 1,000 grams solution - 40 grams salt = 960 grams water 34 grams salt x grams salt = 1 kilogram solution 2 kilograms solution 34 grams salt × 2 kilograms solution x = 1 kilogram solution x = 68 grams salt 21.2
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Chapter and Section Chapter 1: Meas
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Chapter and Section Chapter 5: Forc
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Chapter and Section Chapter 9: Heat
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Chapter and Section Chapter 14: Cha
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Chapter and Section Chapter 18: Ear
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Chapter and Section Chapter 24: Wav
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Name: Date: 1.1 Lab Safety What can
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Page 3 of 6 Safety quiz 1. Draw a d
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Page 5 of 6 c. You suddenly you beg
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Name: Date: 1.1 Using Your Textbook
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Page 2 of 3 The following prefixes
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Name: Date: 1.1 Scientific Notation
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Page 3 of 3 3. Write the numbers in
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Page 2 of 4 Example 1: Measuring ob
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Page 4 of 4 4. . Prefix Symbol Mult
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Name: Date: 1.2 Reading Strategies
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Name: Date: 1.2 Stopwatch Math What
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Name: Date: 1.2 Understanding Light
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Name: Date: 1.2 Indirect Measuremen
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Name: Date: 1.3 Dimensional Analysi
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Name: Date: Skill Builder Fractions
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Page 3 of 4 Solving fraction proble
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Name: Date: 1.3 Significant Digits
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Page 3 of 4 Follow these steps for
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Name: Date: 1.3 Study Notes This sk
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Name: Date: 1.3 Science Vocabulary
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Page 3 of 3 Using the table of pref
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Page 2 of 2 5. Earth’s moon is co
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Page 2 of 3 When precise conversion
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Name: Date: 1.4 Creating Scatterplo
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Page 3 of 3 g. What is the position
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Page 2 of 2 1.4 1. Given the variab
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Page 2 of 3 Step 3: Look at the ran
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Name: Date: 1.4 Recognizing Pattern
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Page 3 of 3 Answer the following qu
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Page 2 of 2 4. Measurements: List a
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Page 2 of 2 2. Your teacher shows y
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Page 2 of 4 Recording valid observa
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Page 4 of 4 b. How did the student
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Page 2 of 3 Name: Lucy O. Date: Jan
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Name: Date: 2.2 Using Computer Spre
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Page 3 of 3 5. The following data i
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Page 2 of 2 2. John notices that hi
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Name: Date: 3.1 Latitude and Longit
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Page 3 of 4 Use an atlas or globe t
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Name: Date: 3.1 Map Scales Mapmaker
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Page 3 of 3 f. Point Q to Point M g
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Page 2 of 5 It’s time to go! 3.1
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Page 4 of 5 37. Now you will head t
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Name: Date: 4.1 Vectors on a Map Yo
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Page 2 of 3 1. Draw a profile map o
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Name: Date: 3.3 Bathymetric Maps Im
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Page 1 of 2 3.3 Tanya Atwater Tanya
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Name: Date: 4.1 Solving Equations w
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Page 3 of 4 Use the formula V = l
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Name: Date: 4.1 Problem Solving Box
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Page 2 of 3 In problems 6 and 7, yo
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Name: Date: 4.1 Percent Error When
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Page 3 of 3 1. The lab group conduc
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Page 2 of 3 1. A bicyclist travels
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Name: Date: 4.1 Velocity Speed and
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Name: Date: 4.2 Calculating Slope f
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Name: Date: 4.2 Analyzing Graphs of
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Page 3 of 4 1. For each position-ti
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Name: Date: 4.2 Analyzing Graphs of
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Name: Date: 4.3 Acceleration Accele
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Name: Date: 4.3 Acceleration and Sp
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Page 3 of 3 3. Graph 3: 4. Find acc
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Page 2 of 3 Example 1: How fast wil
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Name: Date: 5.1 Ratios and Proporti
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Name: Date: 5.1 Internet Research S
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Name: Date: 5.1 Preparing a Bibliog
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Name: Date: 5.1 Mass vs. Weight Wha
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Page 2 of 2 1. A physical science t
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Page 2 of 2 How much does it weigh
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Page 2 of 2 Answer the following pr
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Name: Date: 5.3 Equilibrium When al
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Name: Date: 6.1 Net Force and Newto
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Page 2 of 2 Reading reflection 1. I
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Name: Date: 6.3 Applying Newton’s
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Name: Date: 6.3 Momentum Conservati
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Name: Date: 6.3 Collisions and Cons
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Name: Date: 6.3 Rate of Change of M
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Page 3 of 3 6. A 50.-g (0.050-kg) e
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Page 2 of 2 1. A machine uses an in
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Page 2 of 2 Example 3: A 500-newton
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Page 2 of 2 7. You pull your sled t
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Page 2 of 2 The relationship betwee
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Page 2 of 2 6. Use the gear ratio f
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Page 2 of 2 The three classes of le
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Page 2 of 2 3. Now, calculate the g
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Page 2 of 2 To do this calculation,
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Name: Date: 7.2 Energy Transformati
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Name: Date: 7.2 Conservation of Ene
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Page 2 of 2 Reading reflection 1. W
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Name: Date: 7.3 Power In science, w
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Name: Date: 7.3 Power in Flowing En
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Name: Date: 7.3 Efficiency and Ener
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Page 2 of 2 Reading the temperature
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Page 2 of 4 1. For each of the prob
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Page 4 of 4 1. Surface temperatures
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Page 2 of 2 The graph below shows a
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Name: Date: 9.1 Using the Heat Equa
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Name: Date: 10.1 Measuring Mass wit
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Page 3 of 3 Reading the balance cor
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Page 2 of 2 d. Explain how the disp
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Page 2 of 3 Calculating volume of a
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Name: Date: 10.1 Density The densit
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Name: Date: 10.3 Pressure in Fluids
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Name: Date: 10.3 Boyle’s Law The
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Name: Date: 10.4 Charles’s Law Ch
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Name: Date: 10.4 Archimedes 10.4 Ar
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Name: Date: 10.4 Narcís Monturiol
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Name: Date: 10.4 Archimedes’ Prin
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Name: Date: 11.1 Layers of the Atmo
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Page 2 of 2 Reading reflection 1. H
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Page 2 of 3 Using temperature data
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Page 1 of 2 11.3 Joanne Simpson 11.
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Name: Date: 11.3 Weather Maps You h
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Name: Date: 11.3 Tracking a Hurrica
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Page 3 of 4 Hurricane Andrew crosse
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Name: Date: 12.1 Structure of the A
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Name: Date: 12.1 Atoms and Isotopes
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Name: Date: 12.1 Ernest Rutherford
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Name: Date: 12.2 Electrons and Ener
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Page 2 of 2 Periodic Table Groups T
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Page 2 of 2 Using dot diagrams to r
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Page 2 of 2 13.2 Important note: If
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Page 2 of 2 Example 2: Aluminum and
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Page 2 of 2 13.2 Predict the name o
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Page 2 of 2 Using the information i
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Page 2 of 3 Conservation of atoms T
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Name: Date: 14.1 The Avogadro Numbe
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Page 3 of 4 Substance Elements in s
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Name: Date: 14.1 Formula Mass A che
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Name: Date: 14.2 Classifying Reacti
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Name: Date: 14.2 Predicting Chemica
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Name: Date: 14.2 Percent Yield You
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Name: Date: 14.4 Lise Meitner Lise
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Name: Date: 14.4 Marie and Pierre C
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Page 3 of 3 Reading reflection 1. W
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Page 2 of 2 Reading reflection 1. R
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Page 2 of 2 Reading reflection 1. U
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Page 2 of 2 1. The decay series for
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Page 2 of 2 Reading reflection 1. D
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. Page 2 of 3 i. Switches 2, 3, and
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Name: Date: 16.1 Benjamin Franklin
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Name: Date: 16.2 Using an Electric
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Page 3 of 4 Build a series circuit
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Name: Date: 16.3 Voltage, Current,
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Page 3 of 3 Now you will have the o
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Page 2 of 2 7. How much voltage wou
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Page 2 of 2 5. Use the series circu
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Page 2 of 2 In part (d) of problems
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Page 2 of 2 Reading reflection 1. N
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Page 325 and 326: Page 2 of 2 4. Calculate the power
Page 329 and 330: Page 2 of 4 Determining the relativ
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Page 335 and 336: Name: Date: 19.1 Earth’s Interior
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Page 347 and 348: Name: Date: 19.4 Continental United
Page 349 and 350: Page 3 of 4 When a mountain is form
Page 351 and 352: Name: Date: 20.1 Averaging The most
Page 353 and 354: Page 2 of 5 Locating the epicenter
Page 355 and 356: Page 4 of 5 20.1 For each of the pr
Page 357 and 358: Name: Date: 20.2 Volcano Parts 20.2
Page 359 and 360: Name: Date: 21.2 Calculating Concen
Page 361 and 362: Name: Date: 21.2 Solubility In this
Page 363: Page 3 of 3 The influence of temper
Page 367 and 368: Name: Date: 21.3 Calculating pH The
Page 369 and 370: Name: Date: 22.1 Groundwater and We
Page 371 and 372: Page 3 of 3 Testing the model: 1. W
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Page 375 and 376: Page 2 of 2 2. Use the grids below
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Page 381 and 382: Name: Date: 24.3 Decibel Scale The
Page 383 and 384: Page 2 of 2 a. ____________________
Page 385 and 386: Page 2 of 2 2. Two students want to
Page 387 and 388: Name: Date: 24.3 Palm Pipes Project
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Page 397 and 398: Name: Date: 25.3 Using Ray Diagrams
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Page 405 and 406: Name: Date: 26.1 Gravity Problems I
Page 407 and 408: Name: Date: 26.1 Universal Gravitat
Page 409 and 410: Page 1 of 2 26.1 Nicolaus Copernicu
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Page 413 and 414: Page 1 of 2 26.1 Johannes Kepler 26
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Name: Date: 26.1 Measuring the Moon
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Page 3 of 3 Semi-Circle Card: 26.1
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Page 2 of 2 Reading reflection 1. B
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Page 2 of 2 Part 2: Provisions for
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Page 1 of 2 27.1 Arthur Walker 27.1
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Name: Date: 27.2 The Inverse Square
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Page 2 of 3 1. Fill in the missing
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Name: Date: 28.1 Understanding Ligh
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Name: Date: 28.1 Parsecs You have a
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Page 1 of 2 28.1 Edwin Hubble Edwin
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Name: Date: 28.2 Light Intensity Pr
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Page 2 of 2 If we know the brightne
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Page 2 of 2 Solving Doppler Shift P
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13. A decimeter is 100 times larger
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Skill Sheet 1.3: Significant Digits
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7. Yes, there is a relationship bet
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6. The slope is the same (2.0) unti
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13. S Sh—Sand and shells on the b
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10. 410 miles 11. 6.6 miles -------
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Skill Sheet 4.2: Analyzing Graphs o
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Skill Sheet 5.1: Mass, Weight, and
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Skill Sheet 6.3: Applying Newton’
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Skill Sheet 7.1: Mechanical Advanta
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8. The middle gear turns left. The
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Skill Sheet 7.3: Power in Flowing E
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Skill Sheet 10.1: Calculating volum
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3. Answers are: a. 100 cm 3 b. 13 N
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Skill Sheet 11.3: Weather Maps Samp
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a. b. c. d. e f. Skill Sheet 12.2:
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Skill Sheet 14.1: Chemical Equation
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must be blocking their insulin’s
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8. The current is approximately the
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7. Students can find information ab
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Skill Sheet 17.4: Electrical Power
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Skill Sheet 19.1: Charles Richter 1
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Practice 2: 1. First problem is don
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Skill Sheet 21.3: Calculating pH 1.
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Question 8 (con’t) 9. The new wav
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Skill Sheet 25.2: The Human Eye a.
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Skill Sheet 26.1: Nicolaus Copernic
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Skill Sheet 27.1: Arthur Walker 1.
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