Metric Mania and Density

Answer the following questions!You may use your notes from yesterday.

•How many significant figures are in each number?

1.1.232.0.00453.0.1004.9.001

Write the following in Scientific Notation.

5.702006.50007.0.000428.0.00104

Write in standard form.

9.2.5 x 107

10.4.08 x 10-2

Metric Conversions Ladder Method

T. Trimpe 2008 http://sciencespot.net/

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

How many jumps does it take?

Starting Point

Ending Point

4.1

__.2

__.3

__. = 4000 m

Try these conversions using the ladder method.

1000 mg = _______ g 1 L = _______ mL160 cm = _______ mm14 km = _______ m

109 g = _______ kg 250 m = _______

km

Conversion Practice

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

Metric Conversion Challenge

Use your notes from yesterday and answer the following:

Compare using <, >, or =.

25) 63 cm 6 m

27) 5 g 508 mg

29) 1,500 mL 1.5 L

Find your name in purple ink and sit

at that table.

Organization

Notebooks

• You should have a 3 ring binder for class with the following tabs• Notes

• Classwork/ homework

• Labs

• Quizzes/Tests/Review Sheets

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

DENSITY

VolumeThe 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

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

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

You have a sample with a mass of 620 g & a volume of 753 cm3. Find density.

• G

• U

• E

• S

• S

A liquid has a density of 0.87 g/mL. What volume is occupied by 25 g of the liquid?

• G

• U

• E

• S

• S

An object has a volume of 825 cm3 and a density of 13.6 g/cm3. Find its mass.

• G

• U

• E

• S

• S

Exit Ticket

• 164 cm = _________ m

• 25 mm= _________ km

• 16g= _________ kg

• Use the GUESS method

• A piece of tin has a mass of 16.52 g and a volume of 2.26 cm3. What is the density of tin?