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ICP Name: ____________________________________________________ Date: _______________

## Density Unit

Mark Sailer
Science Teacher
Pioneer Jr-Sr High

Unit Portfolio – (Includes all A, B and C Activities) – Due Friday September 16

Unit Test – Friday September 16

# Objectives/Learning Guidelines

• Determine the densities of various liquid and solid materials.
• Make Measurements in the laboratory to the precision of the instruments used.
• Learn the difference between accuracy and precision in experimental measurements.
• Retain significant figures in calculations involving experimental measurements.
• Use density measurements to determine the identity of a material.
• Locate sourced of the variation in the class's experimental results.

CP.1.4 – Know and explain that physical properties can be used to differentiate among pure substances, solutions, and heterogeneous mixtures.

REMINDER – YOU MUST WORK EACH DAY YOU ARE IN CLASS AND MUST MAKE PROGRESS TOWARD COMPLETION OF ACTIVITIES AND POINTS!!!!

C Layer Activities (65 points maximum)

# Thursday – September 1, 2005 – Unit Begins –

*** FIRST UNIT TEST DAY ***  FIRST UNIT PORTFOLIO DUE ***

1.  Lecture/Discussion Notes – Introduction to Unit  (5 points)   _____

1. Cereal Comparisons – Start this lab

# *** FIRST UNIT TEST DAY ***  FIRST UNIT PORTFOLIO DUE ***

1.  Lab – Cereal Comparisons   (15 points)      _____

# of lead have the same mass, how do they appear different and why? (3 points)  _____

2.  * REQUIRED * Lab – Mass and Volume of Liquids  (Start Lab)

# Wednesday – September 7, 2005

1.  Lab – Continued – Mass and Volume of Liquids (15 points)   _____

2.  Skill Sheet 17A  (5 points)  (Oral Defense)   _____

3.  Math Skills – Density – Show Your Work (5 points)  Oral Defense   _____

# Thursday – September 8, 2005

* REQUIRED * Lab – Mass and Volume of Solids  (Start Lab)

# Friday – September 9, 2005

1.  Lab – Mass and Volume of Solids – Continued    (15 points)   _____

2.  Density Check up Questions (5 points)     _____

3.  Density Questions       (5 point)      _____

Monday September 12, 2005

B Layer Work - Turn in when Complete

# Tuesday September 13, 2005

Finish B Layer Work - Turn in when Complete

Wednesday September 14, 2005 – Last Day to work on unit in class

A Layer Work - Turn in when Complete

B-layer and A-Layer work must be turned in September 15 to be checked!!!

# Other C Layer activities

Daily Log Summary – Sign up for one day, Submit 2 copies of log next day (5 points)

B Layer Activities (Choose one - 15 points maximum)  - Conduct a Scientific investigation to find out the answer to one of the following questions.

1. What is the density of coke and diet coke?
2. What is the density of air?
3. What is the density of a pencil?
4. Create your own question and investigate.  Get approval for your question before starting.

### A Layer Activities (Choose one - 20 points maximum)

Use A-Layer Research Form

1.  Should the US completely convert to the metric system?

2.  Another Question Approved by Mr. Sailer.

C Layer Points Earned ___________ (Maximum 65)

B Layer Points Earned ___________ (Maximum 15)

A Layer Points Earned ___________ (Maximum 20)

Total Points Earned   _________________

Grades   40-55 D  56-70  C  71-85 B  86+ A

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