SSS PacketMs. Taylor

Chemistry 1Unit Scientific Measurement

Chapter 3

Student Success Sheet- 3.1 due 9/15

Read 62-65.Watch Videos:Scientific notation adding & subtracting due 9/15 (3:53): https://edpuzzle.com/assign-ments/m/540f21c1544bbbbc32d81d8a/5410f5c5e4e47ffa65b8aa5f

Scientific notation division due 9/15 (4:06): https://edpuzzle.com/assignments/m/540f21c1544bbbbc32d81d8a/5410ed24e4e47ffa65b8a92f

Scientific notation multiplication due 9/15 (3:34):https://edpuzzle.com/assignments/m/540f21c1544bbbbc32d81d8a/540f2926544bbbbc32d8202f W (watch):-Book reading:-Measurement-

-Scientific Notation-

-In Scientific Notation, the __________ is always a number _______ than or

________ one and _____ than ten. The exponent is always an _______. (whole number)

- What does a positive exponent indicate?

-What does a negative exponent indicate?

-key information in writing numbers greater than 10 in scientific notation.

-key information in writing number less than one in scientific notation.

-key information for multiplying and dividing in scientific notation.

-key information in adding and subtracting in scientific notation.

Example a (work out this example along with the book)

Example b (work out with this example along with the book)

Accuracy-

Precision-

What must you compare your measurement to what to measure its accuracy?

What must you compare your measurement to what to measure its precision?

Accepted value-

Experimental value-

Error- (definition and equation)

Precent error- (Definition and equation)

Sample 3.2 (work out problem with the book)

Summarize:

How do you evaluate accuracy and precision? (be sure to use at least 5 of the vo-cal words from pg. 62-65)

How do you perform operations (ex. multiply, divide, subtract, and add) in scien-tific notation?

What is scientific notation used for? Why is it important?

Question:

Student Success Sheet- 3.1 due 9/16

Read 65-68. stop at significant figures in calculations. W (watch):-Book reading:-significant figures-

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

Explain figure 3.4 in your own words.

Pg.68 4. a. b. c. d.

5. a. b. c. d.

Summarize:

What are the six rules of determining Significant Figures in measurements? Give an example for each (do not use examples from the book).

Question:

Student Success Sheet- 3.1 due 9/17

Read 68-71.Watch Video:Significant Figures with Multiplying and Dividing due 9/17 (3.05): https://edpuzzle.com/assignments/m/540f21c1544bbbbc32d81d8a/5410f624666e359f65f8b622

Significant Figures when Adding and Subtracting 9/17 (2:04): https://edpuzzle.com/as-signments/m/540f21c1544bbbbc32d81d8a/5410b285e4e47ffa65b89e71W (watch):-Book reading:

-Calculated answer cannot be _____ _______ than the least precise measure-ment from which it was __________.

-What must you do to the calculated answer to make sure it is consistent with the measurements from which you calculated it?

What is the first step of rounding? What does this depend on?

What do you do if the value is less than 5? greater than 5? equal to 5?

Pg.696. a. b. c.d. e. f.

key information for addition and subtraction:

Sample 3.5 (a) (work out problem with the book)

Sample 3.5 (b) (work out problem with the book)

Key information for multiplication and division:

Sample 3.6 (a) (work out problem with the book)

Sample 3.6 (c) (work out problem with the book)

Summarize:

How do you perform operations (ex. multiply, divide, subtract, and add)with sig-nificant figures?

Question:

Student Success Sheet- 3.2 due 9/18

Read 80-81.

W (watch):-Book reading:What tells you if an object will float or sink?

Density: (include definition and equation)

What ind of property is Density? Also would this make Density a chemical or physical property?

Density depends only on the __________ of a substance, not on the ______ of the sample.

Those with densities lighter than water will?

What gas would you fill a ballon with so that the ballon would fall to the floor? (use table 3.6 on page 81)

As Temperature increases density _________.

Summarize:What key information did you gain from this section?

Question:

Student Success Sheet- 3.2 due 9/22

Read 74-79.

W (watch):-Book reading:

All metric units are based on __________ of ____ . Which allows you to what?

International System of units (__) is a revised version of the ________ system.

How many SI based units are there?

Complete table 3.1Si Base Units

Quantity SI Base Unit Symbol

Length m

kilogram

Time

cd

Kelvin K

ampere

Amount of Substance

Write Table 3.2

Commonly Used Metric PrefixesPrefix Symbol Meaning Factor

Commonly Used Metric PrefixesPrefix Symbol Meaning Factor

Define Volume:

1L= _______cm3

What does volume change with?

Weight-

Energy- (Definition and Units)

Temperature-

What determines the direction of heat flow? Which way does heat move?

Increase in temperature causes objects to ____________. Decrease in temperature causes objects to _________.

Celsius Scale-

Kelvin scale-

absolute zero-

Convert 30 degrees C to K

Convert 350 degrees K to C.

Summarize:

Describe and explain Si units.

Describe Characteristics of Temperature? What are the two commonly used units of Temperature?

Question:

Student Success Sheet- 3.2 due 9/24

Read 84-91.Watch Video:Dimensional Analysis due 9/24 (4:01): https://edpuzzle.com/assignments/m/540f21c1544bbbbc32d81d8a/5410b14a666e359f65f8aa5cW (watch):-Book reading:

-Conversion factor-

When a measurement is multiplied by a conversion factor, the numerical value is generally ________, but the actual size of the quantity measured remains the ______.

Conversion factors within a system are defined _______ or ______ ___________.

Dimensional Analysis-

Sample 3.9 (work out problem with the book)

Dimensional analysis is a powerful tool for what?

Sample 3.12 (work out problem with the book)

Summarize:What happens when a measurement is multiplied by a conversion factor?

What types of problems can you solve using dimensional analysis?

Question: