1. Metric Mania and Density

2. Answer the following questions! You may use your notes from yesterday.
How many significant figures are in each number?
Write the following in Scientific Notation.
1.23
70200
0.0045
5000
0.100
9.001
Write in standard form.
2.5 x 107
4.08 x 10-2

3. Metric Conversions Ladder Method
T. Trimpe

4. KILO, HECTO, DEKA, BASE UNIT, DECI, CENTI, MILLI

5. How many jumps does it take?
How do you use the “ladder” method?
1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
4 km = _________ m
Starting Point
Ending Point
How many jumps does it take?
= 4000 m 4. 1
__. 2
__. 3
__.

6. 109 g = _______ kg 250 m = _______ km 1 L = _______ mL
Conversion Practice
Try these conversions using the ladder method.
1000 mg = _______ g
109 g = _______ kg 250 m = _______ km
1 L = _______ mL
160 cm = _______ mm
14 km = _______ m

7. Metric Conversion Challenge
Write the correct abbreviation for each metric unit.
Kilogram _____ Milliliter _____ Kilometer _____
Meter _____ Millimeter _____ Centimeter _____ Gram _____ Liter _____ Milligram _____
Try these conversions, using the ladder method.
480 cm = _____ m
5.6 kg = _____ g
8 mm = _____ cm
5.6 m = _____ cm
120 mg = _____ g

8. Use your notes from yesterday and answer the following:
Compare using <, >, or =.
25) 63 cm m
27) 5 g mg
29) 1,500 mL L

9. Find your name in purple ink and sit at that table.

10. Organization
15 minutes for this section maybe less. Go over notebook setup and lab book setup

11. Notebooks
You should have a 3 ring binder for class with the following tabs
Notes
Classwork/ homework
Labs
Quizzes/Tests/Review Sheets

12. Lab Composition Notebook
The first page front and back will be for the table of contents.
The following pages will need to have the following information at the top
Lab Title
Date

13. DENSITY

14. Volume The amount of space occupied by an object is called its volume.
V = l x w x h
Water Displacement
Final water level- initial water level= V

15. Mass -is a measure of the quantity of matter in an object

16. Density Density is the mass per unit volume of a material.
You find density by dividing an object’s mass by the object’s volume.
D= M/V
Draw triangle for this slide on the board

17. You have a sample with a mass of 620 g & a volume of 753 cm3
You have a sample with a mass of 620 g & a volume of 753 cm3. Find density. G U E S
D= 620G/ 753 cm3
D= 0.82 g/cm3

18. A liquid has a density of 0. 87 g/mL
A liquid has a density of 0.87 g/mL. What volume is occupied by 25 g of the liquid? G U E S

19. An object has a volume of 825 cm3 and a density of 13. 6 g/cm3
An object has a volume of 825 cm3 and a density of 13.6 g/cm3. Find its mass. G U E S

20. Exit Ticket 164 cm = _________ m 25 mm= _________ km 16g= _________ kg
Use the GUESS method
A piece of tin has a mass of g and a volume of 2.26 cm3. What is the density of tin?