1. Scope of Teaching Experiment
Surattana Settacharnwit

2. Scope Introduction Objectives Experimental explanation (Flow chart)
3.1 Material and Method
Hypothesis
Experiment
Experimental record (Table with name)
Discussion (using questions)
Conclusion
Supplementary knowledge

3. Vocabularies density volume mass buoyant force o-ring float sink add
pour
Cm3
12. increase
13 decrease
14 plus
15 minus
16 time
17 divide
18 multiply
19 substract
20 a half full
21 variable
22 independent
22 dependent

4. Introduction

5. Floating or Sinking of an O-ring
(1) (2)
water
salt

6. Table1. Floating or Sinking of an O-ring
Method
O-ring Observation
Floating (/)
Sinking (X)
1. Place o-ring on the surface of water X
2. Place o-ring on the surface of water+add one by one teaspoon of salt
(/) 3
(X) 1
(X) 2