Qualitative/Quantitative Lesson 4 "Matter, Separation of Mixtures, and Sig Figs"
Science and Technology Standards:
PA Standard 3.2.12C
PA Standard 3.4.12A
PA Standard 3.4.12D
PA Standard 3.7.12B
Purpose:
1. I will classify examples of matter.
2. I will separate mixtures using physical means.
3. I will determine the number of significant figures.
4. I will round to 2 significant figures.
Homework Due:
1. Sections 2.4 - 2.5 Notes (Due Lesson 4)
2. Self-Check Exercises 2.2 & 2.3 (Due Lesson 4)
*Quantitative Class Only
Handouts/Supplies:
1. KClO3 + MnO2 Mixture
2. Significant Figures WS #1
3. Significant Figures and Multiplication/Division WS
I. Introduction
Opening Assignment:
Warm-Up: Identify the following as an element, compound or a mixture: Tap water, distilled water, iron, sand, sodium chloride, iron/sand, salt water, aluminum
Check over the homework:
1. Sections 2.4 - 2.5 Notes
2. Self-Check Exercises 2.2 & 2.3
Review warm-up
State the purpose
II. The Lesson:
Activity #1: Review warm-up (A Review of Sections 3.3 & 3.4)
Activity #2: Separate the following mixtures (Application of Section 3.5):
1. Salt from a salt water solution (The water does not to be collected)
2. Sand from a water/sand mixture (The water must be collected)
3. Iron from an iron/sand mixture Activity #3: Demonstrate the separation of oxygen from the compound potassium chlorate
Activity #4: Discuss determining with significant figures and rounding rules (”Significant Figures.ppt”)
Activity #5: Complete Significant Figures WS #1 (Identify the number of significant figures and underline the least decimal place)
Activity #6: Review Significant Figures WS #1
Activity #7: Complete significant figure and rounding problems using Significant Figures and Multiplication/Division WS #1: 1 - 12, 17 - 24
III. Closure:
Summary Assignment:
Summarize today's lesson
1. Describe how you separate iron from iron/sand mixture.
2. Identify the number of significant figures and underline the least decimal place in 867530 .
3. Round 867530 to 2 significant figures.
Homework Assignment (Write down in planners):
1. Significant Figures and Multiplication/Division WS #1: 1 - 12, 17 - 24 (Due Lesson 5)
*Quantitative Class Only
Preview of Next Class:
1. Addition, Subtraction, Multiplication, and Division with Significant Figures
Page maintained by: Stephen A. Roe
Last update: Thursday, January 25, 2007 9:46 PM
|
