THE EFFECT OF SCIENTIFIC INQUIRY TO SCIENCE PROCESS SKILLS ON ELASTICITY AND HOOKE'S LAW TOPIC GRADE XI ODD SEMESTER IN SMA SWASTA SANTA MARIA MEDAN A.Y 2018/2019

This research have purpose to know the effect of scientific inquiry learning model to science process skills on Elasticity and Hooke’s law topic grade XI odd
semester in SMA Swasta Santa Maria Medan A.Y 2018/2019. This research is a quasi experiment with control group pretest-postest design. Population in this research are whole students of SMA Swasta Santa Maria Medan class XI science odd semester academic year 2018/2019 which totally 2 classes so that class XI Science-1 as experiment class and class XI science-2 as control class each consists of 30 students. The instrument was used to get data is essay test which contains of 7 questions and had been validated by some experts in Physics. Based on the result of research obtained the mean pretest of experiment class is 49.76 with the standard deviation 12.12 and the mean pretest of control class is 48.81 with the standard deviation 12.56. After doing normality test and homogenity test, data of pretest from both of sample was normal distribution and homogeneous. From the result of hypothesis test by t test two tail on significant
level α = 0.05 get that oth of sample have the same initial ability. Then after given the treatment for experiment class using scientific inquiry learning and control classs using the conventional learning model, so the result of mean postest of experiment class is 76.31 with standard deviation 11.77 and mean postest of control
class 70,83 with the standard deviation 12.83. The result of hypothesis test through t test one tail get that H0 rejected and Ha accepted. It can be concluded that there is the effect of Scientific Inquiry Learning model on student’s science process skills on Elasticity and Hooke’s law topic of SMA Swasta Santa Maria Medan class XI science odd semester academic year 2018/2019. The result of student’s activity based on science process skills indicator during the learning process using the
scientific inquiry learning model of research have increase every meet and has the good category.