Henry Ray III

Lesson Plans Chemistry 11 24 & 25 08

Objectives

6.20 Demonstrate that new substances can be made when two or more substances are chemically combined and compare the properties of the new substances to the original substances. (TEKS/SE)(6.7A)

112.22b (6.7) Science concepts. The student knows that substances have physical and chemical properties.

T2 (IPC 8.A)

(A) Demonstrate that new substances can be made when two or more substances are chemically combined and compare the properties of the new substances to the original substances. (TEKS/SE)

6.22 Define matter and energy. (TEKS/SE)(6.8A)

112.22b (6.8) Science concepts. The student knows that complex interactions occur between matter and energy.

T2 (IPC 4,5)

(A) Define matter and energy. (TEKS/SE)

Activities and Resources

 

Monday/Tuesday

After students grade GR&SW page 9-12 in class, we will do the “GAK” experiment. 

1.  GAK Experiment-Chemical Change


Students will list the physical properties of Elmer’s glue using their five senses.
1. White 2. Thick 3. Sticky and 4. Slight vinegar smells

Lab equipment
1. One 4 oz bottle of glue (student will supply glue)
2. 1/4 teaspoon of BORAX
3. 125 ml of water
DIRECTION
A) pour 100 ml of water into a plastic cup
B) place 1/4 teaspoon of borax into water and stir
C) pour 4 oz of glue into slowly into the water/borax solution while stirring

 

 

2.         The teacher will go over the difference between Acids and Bases (see experiment below)

During the first part of the period students will do the acid-base experiment.  Students will find the ph of at least five household products using litmus paper. 

 

 

Chemical reaction with acids and bases

 

 

 

 

 

 

 

 

 

Solution

Blue Litmus Reaction

 

Red Litmus Reaction

 

 

 

Turn RED

 

Turn BLUE

 

 

 

Acid

 

Base

 

1

Vinegar

 

1

 

 

2

Real Lime

 

2

 

 

3

Alcohol

 

3

 

 

4

Windex

 

4

 

 

5

Water

 

5

 

 

6

Real Lemon

 

6

 

 

7

Corn Syrup

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd part: Two handouts

  1. Periodic chart  (atomic number, symbols and name of Element)
  2. Physical/chemical change

 

 

Wednesday/Thursday

Class assignment: The students will do two activities

1st Half of the period students graded their Guided Reading and Study Workbook pages 5-8.

2nd  half of period go over chemistry review answers in class.

 

 

Friday

Unit test 11 30, 2007