Scientific Measurement

Brian Holmgren
Van Horn HS
Independence MO

Chemistry

Name__________________________________

Due Date: 11/07/08

Objectives: At the end of this unit you will be able to:

Convert measurements to scientific notation
Distinguish among accuracy, precision and error of a measurement
Determine the number of significant figures in a measurement and a calculated answer
List SI units of measurements and common SI prefixes
Construct conversion factors from equivalent measurements
Apply the technique of dimensional analysis to a variety of conversion problems
Define density and calculate the density of a material from experimental data

GENERAL INSTRUCTIONS: This unit is worth a total of 200 points. You must do a combination of activities from the A, B and C levels to get the total points. You must have at least one B level activity. You must have an A level activity to receive more than 90% for the unit. You cannot earn points in other levels in place of the A level.

“C Level”. (choose enough activities to reach up to 165 points maximum)

________ 1. Learn vocabulary words for the entire unit. Must score 80% on random selection of all terms defining from memory (20 pts)

________ 2. Create a graphic device that incorporates all the vocabulary words and their relationships. (30 points)

________ 3. Listen to the lecture on scientific notation and take Cornell notes.Do question 15 on page 72. Produce notes and show problems (10 points)

________ 4. Read about scientific notation on pages 63 and R56 – R58. Develop a product that you could use to explain scientific notation and how to add, subtract, multiply and divide numbers in scientific notation to your parents. You must have a problem set with answers. (20 points)

________ 5. Listen to the lecture accuracy, precision and error and take Cornell notes. Do worksheet on accuracy, precision and error. Produce notes and show completed worksheet (10 points)

________ 6. Read about accuracy, precision and error on pages 64 and 65. Develop a product that you could use to explain accuracy, precision and error to your parents. You must have a problem set with answers or complete the worksheet. (20 points)

________ 7. Listen to the lecture on significant figures and take Cornell notes. Do worksheet on accuracy, precision and error. Produce notes and show completed worksheet (10 points)

________ 8. Read about significant figures on pages 66 to 71. Develop a product that you could use to explain significant figures to your parents. You must have a problem set with answers or complete the worksheet. (20 points)

________ 9. Complete the significant Figures in Data package with 90% accuracy on problem set. You cannot use this package on the test. (15 points)

________10. Listen to the lecture on the SI and take Cornell notes. Complete the section assessment on page 79 with 90% accuracy.. Produce notes and show completed assessment. (10 points)

________11. Read about the SI on pages 73 to 79. Develop a product that you could use to explain the SI to your parents. This must include all 7 base units. You must have a problem set with answers or complete the section assessment on page 79 with 90% accuracy. (20 points)

________12. Listen to the lecture on conversions and take Cornell notes. Complete the section assessment on page 87 with 90% accuracy.. Produce notes and show completed assessment. (10 points)

________13. Read about conversions on pages 80 to 87. Develop a product that you could use to explain conversions to your parents. You must have a problem set with answers or complete the section assessment on page 87 with 90% accuracy. (20 points)

________14. Listen to the lecture on density and take Cornell notes. Complete the section assessment on page 93 with 90% accuracy.. Produce notes and show completed assessment. (10 points)

________15. Read about density on pages 89 to 92. Develop a product that you could use to explain conversions to your parents. You must have a problem set with answers or complete the section assessment on page 93 with 90% accuracy. (20 points)

________16. Complete the Measurement Challenge lab (15 points)

________17. Complete the Salt Sense lab (15 points)

_______18. Design/AND SING a song about any one of the objectives that provides a complete explanation of that objective and perform for the class. (20 pts)

_______19. Design/AND PERFORM a skit about any one of the objectives that provides a complete explanation of that objective and perform for the class. (20 pts)

_______20. 50 question multiple choice test using any products you’ve created during this unit. (Actual score, up to 50 pts)

_______21. 72 question combination multiple choice, short answer and essay question test using any products you’ve created during this unit. (Actual score, up to 100 pts)

_______22. Propose your own activity, points are negotiated.

____________ “B” Level: Choose at least one. (Must do 1 activity, maximum of 30 points)

_______ 1. Make a wave toy. (15 points)

_______ 2. Determine the density of several irregular shaped items. (15 points)

_______ 3. Propose your own activity.

____________ “A” Level: Choose ONE only. (The paper should be 1 – 2 pages in length and draw information from at least 3 properly cited works. 20 points)

_______ 1. Virtually everyone in the world uses the SI system except the United States. Do you feel we should also adopt the SI system? Defend your choice either way with examples.

______ 2. Many people have difficulty using dimensional analysis. Is it really worthwhile to learn? Can you think of any reason that you would ever need the technique beyond this class? Take a stand and defend it with examples.

_______ 3. Propose your own paper.

Vocabulary for Scientific Measurement

Measurement

Scientific Notation

Accuracy

Precision

Accepted Value

Experimental Value

Error

Percent Error

Significant Figures

International System of Units (SI)

Meter (m)

Liter (L)

Kilogram (kg)

Gram (g)

Weight

Temperature

Celsius Scale

Kelvin Scale

Absolute zero

Energy

Joule (J)

Calorie (cal)

Conversion Factor

Dimensional Analysis

Density