SAS Curriculum Density #11-Day 3

Today in ScienceYou will Need:1)Pencil, Calculator2)Log #1 – update and record points3)Density Problems – Bookshelf –

Staple to SAS Curriculum – Density #11- 1 sheet 2 sides

4)SAS Curriculum – Density #11 + Density problems –Due Tomorrow.

5)Progress Notice – To be handed out on Wednesday for Binder due on Thur.

Reminders1)Record earned points on

Assignment Log #12)Check Your Grades – Progress

Notices to be passed out on Wednesday

3)SAS Curriculum – Density #11 + Problems –Due Tomorrow.

4)Test #1 and Binder Check #1 – Due Thursday

Binder Check #1 & Test #11) Table of Contents is on-line

1) Edit out my notes to you2) Organize Papers in the order of the

ToC3) Number pages – Like a book

2) Test #1– Target Concepts on-line to review1) Create ½ page of notes, done by

hand, front side only2) You will have 1 class period to

complete the test

Object # Mass(g)

Initial Volume

(mL)

Final Volume

(mL)

Object Volume

(mL) 1

   5    

 2

   5    

 3

   5    

 4

   5    

Table 1: Data for objects 1-4

Subtract Initial Volume from Final

Volume

Subtract Final from Initial

Object #

Mass (g)

Initial Volum

e (mL)

Final Volume

(mL)

Object

Volume

(mL)

Density(g/mL)

RESULTS(S= sink; F=floats)

Water Ethano

Gasoline

Sea H2O

 5 

 6 

 7 

 8 

 9 

 10 

 11 

Table 2: Data for Objects 5-11

Divide Mass by Object Volume

SHOW WORK

Subtract Final from Initial

Substance Density(g/mL)

aluminum 2.7copper 8.9

gasoline 0.68gold 19.3ice 0.917iron 7.8lead 11.3

seawater 1.025wood (average value) 0.8

Table of Densities

This table will help you with question #11

Subtract Final from Initial

Liquid Color of

Liquid

Volume (mL)

Mass (g) Density (g/mL)

1.Water Light Blue

 5    

2. Ethanol Dark Blue

 5    

3. Gasoline

Dark Green

 5    

4. Seawater

Light Green

 5    

Table 3: Liquid Densities

Mass divided by Volume = Density

SHOW WORK

Find the density of the crown. 1.Is it real gold? 2.What is your evidence?

Practice and ReviewMass Unit Label = ___________

Volume Unit Label = _______, ________, ________

Density Unit Label = __________,

__________, __________

Gram

cm3

mL cc

g/cm3

g/mL g/cc

Density Formulas1) Identify the type of numbers you

are given in the word problem.2)Choose the correct version of the

Density formula1)Tip: If you are given the mass

you will always DIVIDE3)You may need to find VOLUME

first!

Problem #11) Henry has a block of an unknown element

with measurements of 5.8 cm on each side. It’s mass is 1645.9 grams. What is the element’s density? (10pts) – 2 step problem

Is cm a “volume” unit? (Look at the labels at the top of your

paper?

You will need to find volume 1st. What method will you use?

NO

Method #2 – LxWxH because it is a REGULAR shaped object

5.

Problem #11) Henry has a block of an unknown element

with measurements of 5.8 cm on each side. It’s mass is 1645.9 grams. What is the element’s density? (10pts) – 2 step problem

195.11 cm3

5.8 x 5.8 x 5.8 =

Problem #11) Henry has a block of an unknown element

with measurements of 5.8 cm on each side. It’s mass is 1645.9 grams. What is the element’s density? (10pts) – 2 step problem

What type of number is “grams”? (Look at the labels at

the top of your paper?

Which version of the Density formula are you going to use….YOU have MASS and you’ve found the VOLUME?

Mass

D = m/v

Problem #11) Henry has a block of an unknown element

with measurements of 5.8 cm on each side. It’s mass is 1645.9 grams. What is the element’s density? (10pts) – 2 step problem

1645.9 divided by 195.11 =

Problem #4 – worth only 5 pts.

8.44 g/cm3

PROBLEMS – 7 AND 81) Remember – Density is how the particles are

packed.2) No matter the size(volume) of a substance…

the particles will be “packed” the same way3) Different substances have their particles

“packed” differently.4) Density is the comparison of these two

measurements

Copper Wood

Remember1. SAS Curriculum – DENSITY

#11 –Due Tomorrow at the beginning of the period.

2. Check your Grades Progress notices will be passed out on Wednesday3. Binder Check & Test #1 on

Thursday