# Catalyst - WAY BACK WEDNESDAY! - PowerPoint PPT Presentation

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## Catalyst - WAY BACK WEDNESDAY!

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### Catalyst - WAY BACK WEDNESDAY! Grab a calculator on your way in! Please have your completed homework on your desk. Mr. Knipmeyer wants to see if wearing a tie will ... – PowerPoint PPT presentation

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Title: Catalyst - WAY BACK WEDNESDAY!

1
Catalyst - WAY BACK WEDNESDAY!
• Mr. Knipmeyer wants to see if wearing a tie will
make Cox students score better on their tests.
What is the IV, DV, and 3 things he should keep
constant?
• How many nanodollars are there in a dollar?
• How many feet are there in a mile?

2
Todays Agenda
• Catalyst
• Homework Review
• SPECIAL MESSAGE
• Practice, Practice, Practice!
• Exit Question
• HOMEWORK TONIGHT DIM AN.
• UNIT TEST ON FRIDAY!

3
Todays Objectives
• SWBAT master dimensional analysis. ?

4
Exit Question and HW Review
• In July 2008, it was estimated that the worlds
population is about 6,707,000,000. The United
States population was estimated to be
304,060,000. The coldest temperature ever created
by man is 0.000000005K. Write these 3 numbers in
scientific notation.

5
Convert it like its really hot
• Lets get this stuff even
• better with MORE practice
• and a better
• Understanding of units

6
SPECIAL GUEST WHO COULDNT MAKE IT TODAY
• SNOOP HAS A MESSAGE FOR YOU!

7
• Step 1
• What to what?
• Step 2
• Write conversion factor(s)
• Step 3
• Train tracks

8
HW How do we do that?
• We have to understand prefixes even better!
• BIGGEST BIGGER BIG tiny tinier
tiniest
• G M k h d c
d m n m
• i e i e e
e e i a i
• g g l c k
n c l n c
• a a o t a t
i l o r
• o
I I o

9
Length - Meters
• Creepy Math Guy found a ruler! SWEEET!

10
Volume - Liters
lt
lt
1 mL
1 kL
1 L
11
Mass - Grams
.
lt
lt
1 mg
1 kg
1 g
12
Length - Meters
.
lt
lt
1 mm
1 m
1 km
13
Always remember
• Key Point 1 In two step problems, always
convert to the unit without a prefix first.
• Mass grams
• Distance meters
• Volume liters

14
Practice
• Chris Paul has a mass of 79.4 kg, convert this to
mg.
• Bonus If a standard basketball has a mass of
620, 000 mg, how many basketballs would equal the
mass of Chris Paul?

15
Practice
• There are 1135 decaliters (daL) in a pool.
Convert to centiliters (cL).
• 10 L 1 daL
• 100 cL 1 L

16
Practice!
• The average human eye blink is 300 milliseconds.
Convert this to hectoseconds.

17
Practice
• How many deciliters are in a liter?

18
Practice
• How many grams are in a kilogram?

19
Practice
• How many micrometers are in a meter?

20
Practice
• How many milligrams are in a gram?

21
Practice
• How many meters are in a dekameter?

22
Practice
• How many liters are in a gigaliter?

23
Practice
• How many centigrams are in a gram?

24
Practice
• How many meters are in a megameter?