1 / 43

Catalyst – January 11(2), 2013

Catalyst – January 11(2), 2013. Please write answers in complete sentences. What did you do over the long weekend? Write one thing you learned last week. (Reminder: it was all about the Scientific Method!). Schedule for the Rest of Unit 1 How to Be a Scientist.

jdanforth
Download Presentation

Catalyst – January 11(2), 2013

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Catalyst – January 11(2), 2013 • Please write answers in complete sentences. • What did you do over the long weekend? • Write one thing you learned last week. (Reminder: it was all about the Scientific Method!)

  2. Schedule for the Rest of Unit 1How to Be a Scientist • Tuesday: Scientific Notation, Units, Prefixes, Metric Olympics • Wednesday: Precision, Accuracy, Percent Error • Thursday: Dimensional Analysis Day 1 • Friday: Dimensional Analysis Day 2 • Monday: Unit 1 Test Review • Tuesday: Unit 1 Test!

  3. Today’s AgendaTables and Graphs Tuesday! • Catalyst • Scientific Notation Review/Mini-Lesson • Units/Prefixes Notes and Practice • Metric Olympics! • Exit Question/Progress Reports HW: Metric Olympics Extension

  4. Today’s Objectives • SWBAT convert numbers in and out of scientific notation. • SWBAT state and order the basic metric units and abbreviations for mass, length, and volume. • SWBAT estimate using appropriate units and make accurate measurements.

  5. LESSON TITLE: SCIENTIFIC NOTATION AND MEASUREMENT

  6. Distance from Earth to Mars • The distance from Earth to Mars varies a lot because Earth’s orbit around the sun is smaller than Mars’ orbit. Earth is the third planet from the sun, and Mars is the fourth. • The minimum distance from the Earth to Mars is about 54.6 million kilometers. The farthest apart they can be is about 401 million kilometers. The average distance is about 225 million km.

  7. Nanotechnology • Nanotechnology is the manipulation of matter on an atomic and molecular scale. Generally, nanotechnology works with materials, devices, and other structures with at least one dimension sized from 1 to 100 nanometers. • 1998: Professors Uri Sivan, Erez Braun and Yoav Eichen assembled DNA and silver into a conductive wire 1000 times thinner than a human hair, opening the door for faster and more sophisticated computer chips. That’s right, living DNA molecules being used to create a new generation of electronics.

  8. These Numbers Be Crazy! • 1 nanometer = 0.000000001 meter • 100 nanometers = 0.0000001 meter • 54.6 million kilometers = 54,600,000 meters • 401 million kilometers = 401,000,000 meters SCIENTIFIC NOTATION!!!!

  9. Notes: Scientific Notation Key Point #1 : Scientific notation is a way of abbreviating very large or very small numbers. Exponent 3.03 x 106 3 Parts! Number Power of 10

  10. Key Point #2: A number in correct scientific notation has only one non-zero number to the left of the decimal. Scientific Notation 3.03 x 106

  11. Big Numbers  Scientific Notation Let’s get rid of them zeroes at the end! • To do this, move the decimal point to the LEFT (to the left) 3 2 4 0 0 0 0 0 .

  12. Big Numbers  Scientific Notation So, how do we use that number 7??? 3.2 4 0 0 0 0 0 x 107

  13. Small Numbers  Scientific Notation Let’s get rid of them zeroes at the front! • To do this, move the decimal point to the RIGHT (to the right) 0 0 0 0 0 0 2 6 .

  14. Small Numbers  Scientific Notation How many times did we move the decimal to the RIGHT (to the right)? 0 0 0 0 0 0 2 6 .

  15. Small Numbers  Scientific Notation So how do we use that number 6??? x 10-6 2 6 0 0 0 0 0 0 .

  16. Positive and Negative Exponents • Key Point #3: If the number isLARGE then the exponent is POSITIVE (+); if the number is small then the exponent isNEGATIVE (-).

  17. 2250000 Scientific Notation

  18. 2250000 2.25 x 106 Scientific Notation

  19. 10 300 000 000 Scientific Notation

  20. 10 300 000 000 1.03 x 1010 Scientific Notation

  21. 0.000055 Scientific Notation

  22. 0.000055 5.5 x 10-5 Scientific Notation

  23. 9870000 0.00000987 Scientific Notation

  24. 9870000 9.87 x 106 0.00000987 9.87 x 10-6 Scientific Notation

  25. 8.1 x 103 9.4 x 10-2 Scientific Notation

  26. 8.1 x 1038100 9.4 x 10-20.094 Scientific Notation

  27. Notes: Measurement • Key Point #4: Scientists have a standard international way of measuring volume, mass, and length known as SI.

  28. What unit should you use to answer the following questions??? • How far is it from the Earth to the Sun? • How much water can I fit into the beaker? • How much matter can we put on the table before it breaks? METERS LITERS GRAMS

  29. Prefixes • Key Point #5: Scientists use prefixes to adjust the value of each of these units.

  30. Well fine…what are these prefixes?

  31. Well… ok, we generally only use a few of the prefixes…

  32. 2012 Women’s Triathlon • One of the closest Olympic medal races with the gold and silver decided by a photo finish for the first time

  33. Metric Olympics • You will be completing 6 events in different stations • Read all directions before beginning each event • Record estimates and actual measurements on your Metric Olympics Score Card • Team Captain should make sure that all “athletes” are on task and completing events correctly • Extremely Important: Make and record estimates BEFORE you make actual measurements

  34. Metric Olympics • You will be completing 5 events in different stations • Read all directions before beginning each event • Record “Hypothesized Performance” and “Actual Performance” on your Metric Olympics Score Card • Team Captain should make sure that all “athletes” are on task and completing events correctly • Extremely Important: Make and record estimates BEFORE actual event and BEFORE you make actual measurements

  35. Lesson Wrap-Up • Scientific Notation • Measurement: Unit and Prefixes • Metric Olympics

  36. Exit Question • Write the following numbers in scientific notation: • 47,050,000 • 0.00086 • Describe what the following prefixes do to the value of a unit (increase or decrease?) • Micro- • Milli- • Hecto- Leave Classwork Packet and Mini Metric Olympics Paper in Folder HW: Metric Olympics Extension

More Related