The Impact of McCarthy Model on Acquiring Scientific Conceptions in Teaching Science, and Tendency towards the Subject among Second Year Intermediate Female Students

One of the main purposes of this research is to identify the impact of McCarthy model on acquiring scientific conceptions in teaching science, and trending toward the subject at second mediate class. For this purpose the research used a descriptive and semi-empirical approaches. In addition, two research tools were set as they include a test for scientific concepts, and a measurement to trend toward science subject.
Then, the experiment was applied to a random sample of students from second mediate grade at two schools in Abha City. The first school represents an experimental group (49 girls) that study a unit of "Material and Energy" using McCarthy model. The second school represents a control group which include 46 girls studying the same unit with the same methods. The research tools were applied previously to Search groups in order to identify the parity for both experimental and control groups. At the end of the experiment, the same research tools were post applied to the experimental and control  groups during first term 1435- 1436.
The results have showed a statistically significant difference at the level of inference (0.05) between averages of students degree at experimental and control groups in the post application to test scientific concepts, as well as variance at the function level (0.05) between averages of students degrees at experimental and control groups in the post application for measuring a trend toward science subject in favor of the experimental group. According to those results, some recommendations are presented.