9/9/14 chemistry mrs. turgeon “learn from yesterday, live for today, hope for tomorrow. the...
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9/9/14 CHEMISTRY MRS. TURGEON
“Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.” –Albert Einstein
OBJECTIVES SWBAT:1.Complete 2 scientific notation conversions independently2.Diagram the procedure for a lab
DO NOW:Name two important functions of the “Quality Control” member of a POGIL group
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9/9/14 CHEMISTRY MRS. TURGEON
DUE DATE SUMMARY:
1.Learning Roles & Safety Worksheet- Today
2. Foldable/Flashcards 11-20 Wednesday, 9/10/14
3. Elements Quiz (1-20), Thursday, 9/11/14
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1.What you did to ripped jeans
2.What a cloud does
3.What you do to flowers in the spring
4. What you do in a play
Use the pun to help you identify the element.Give the element’s name and symbol.
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1.What you did to ripped jeans
2. What a cloud does
3.What you do to flowers in the spring
4. What you do in a play
The answers are …
Sodium - Na
Uranium - U
Platinum - Pt
Actinium - Ac
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www.chrisjordan.com
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106,000 aluminum cans, the number 106,000 aluminum cans, the number used in the US every 30 seconds.used in the US every 30 seconds.
www.chrisjordan.com
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106,000 aluminum cans, the number 106,000 aluminum cans, the number used in the US every 30 seconds.used in the US every 30 seconds.
www.chrisjordan.com
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Scientific NotationScientific Notation# from 1 to 9.999 x 10exponent
800 = 8 x 10 x 10 = 8 x 102
2531 = 2.531 x 10 x 10 x 10
= 2.531 x 103
0.0014 = 1.4 ÷ 10 ÷ 10 ÷ 10
= 1.4 x 10-3
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Change to standard form.
1.87 x 10–5 =
3.7 x 108 =
7.88 x 101 =
2.164 x 10–2 =
370,000,000
0.0000187
78.8
0.02164
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Change to scientific notation.
12,340 = 0.369 = 0.008 =
1,000,000,000 =
1.234 x 104
3.69 x 10–1
8 x 10–3
1 x 109
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Prefixes in the SI SystemPrefixes in the SI System
Power of 10 for Prefix Symbol Meaning Scientific Notation_________________________________________________________
mega- M 1,000,000 106
kilo- k 1,000 103
deci- d 0.1 10-1
centi- c 0.01 10-2
milli- m 0.001 10-3
micro- 0.000001 10-6
nano- n 0.000000001 10-9
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If a set of calculations gave you the following numbers and you want to express your answer correctly for our class then…….
2.57995035 becomes 2.58
34.204221 becomes 34.20
How do I express my answer?How do I express my answer?
Always round to the hundredth spotAlways round to the hundredth spot