1. Objective of the day:
To understand how to measure using a graduated cylinder, triple beam balance and a ruler

2. Daily Question # 1
What is the volume measurement in the following diagram?

3. Back to the Basics

4. Science Lab Equipment

5. Graduated Cylinder
Measure about
26.1 mL

6. d) e) f) 5.3 g) 32.0 h) 3.5 i) 47.0

7. Scale
Weigh the object

8. 1) ) )

9. Ruler Measure the length of the object
If extra time have groups check each other’s measurements

10. SI Units
International System of Units (SI)

11. Metric Prefixes
King Henry Died One December Cold Morning OR King Henry Died DRINKING Chocolate Milk , STAIR STEPS?

12. BIGGER
SMALLER
Show them the King Henry….then show them how to more from the left to the right…

13. 1000 k BIG 100 h 10 dk 1 .1 d .01 c .001 m SMALL BASE (m, g, L) kilo
hecto 10 dk
deca 1
BASE
(m, g, L) .1 d
deci
.01 c
centi
.001 m
milli
SMALL

14. How do you convert between metric units?
Determine whether you are going up the ladder or down the ladder.
If you go up, move the decimal to the left.
If you go down, move the decimal to the right.
Use the ladder to determine how many places to move the decimal.
The number of steps on the ladder is equal to the number of decimal places.
Write the correct units with your answer.

15. Practice Problems 1. 0.7834 mg = ____________ g
cm = ______________ m
3. 345,000 kg = ____________ g
mm = _______________ hm
cg = ________________ mg
km = _______________ cm

16. Scientific Notation Method of writing very small or very large numbers
A positive exponent means the decimal moved to the left. A negative exponent means the decimal moved to the right

17. Scientific Notation
602,200,000,000,000,000,000,000 = ?
Step 1: Make the Coefficient less than 10 and more than 1.
Step 2: Find out how many places over the decimal has to move to give you the number in step 1.

18. Scientific Notation 5,300,000 = ? 4,302,000,000 = ? -24,500 = ?
= ?
= ?

19. Scientific Notation 5.3 x 104 = ? 7.02 x 108 = ? -3.21 x 103 = ?

20. Scientific Notation Addition and Subtraction:
Make the exponents the same number
Add/Subtract the coefficient
5.3x x103 =
5.3x x102 =
31.3x102=
3.13x103

21. Scientific Notation Multiplication and Division
Add or Subtract exponents
Multiply or Divide coefficients
Multiply Divide
5.2x102 x 4.8x104 = x104 ÷ 2.5x103=
(5.2 x 4.8) x10(2 + 4) (5.0 ÷ 2.5) x10(4-3)=
24.96x x101
2.496x107

22. Scientific Notation 5.6x104 + 4.3x102 = ? 4.0x106 – 8.3x105 = ?

23. Derive a relationship between the following
17 = = = = = = 4

24. Accuracy vs. Precision Accuracy: How close to the real value
Precision: How close a series of measurements are to each other
accuracy of tools

26. Significant Figures Rounding Numbers:
-Round up if the digit to the right is between 5-9
59.48  59.5
-Drop the number to the right if it’s between 0-4
3.84  3.8
Significant Figures Tell You What Number To Round To!

27. Significant Figures
All Non-zero numbers (1,2,3,4,5,6,7,8,9) are significant
Zeros –
Front of number are NEVER significant
0.0071, 0.42, all have 2 sig. figs
Middle of number are ALWAYS significant
7003, , all have 4 sig. figs
End are SOMETIMES significant
At end AFTER decimal, ALWAYS significant
36.00, , all have 4 sig figs
At end BEFORE decimal, NEVER significant
300, 7000, all have 1 sig fig

28. Significant Figures
5.30 = ?
= ?
1900 = ?
= ?

29. Significant Figures Addition and Subtraction
Match the number with the least number of decimals
Ex: = 17.3
= 17.31
= 17
Multiplication and Division
Match value with fewest number of sig figs
Ex: 2.00 x 11 =22
2.00 x 11.0 = 22.0
2 x 11 = 20