The objectives of this research were to 1) develop the skills practices in website creation with Google Sites of Science Learning Strand for Mathayom Suksa 1 students. 2) compare the students' learning achievements and 3) study the students' opinions on skills practices. The subject of this study was selected from students in Mathayom Suksa 1/2 consisted of 30 students by using simple random sampling method. The research instruments consisted of the skills practices on website creation with Google Sites, Pre-test and Post-test items and questionnaires. The statistics employed were efficiency, mean, standard deviation and t-test. The results of this study revealed that 1) all 4 units of skills practices were efficient at 80.35/81.94, 80.06/81.61, 80.15/81.29 and 81.89/82.26 respectively in accordance with the Criterion (80/80). 2) all units of students' learning achievements gained after learning through skills practices were significantly higher than those of before at .05 statistical level and 3) The students' opinions on the 4 units of skills practices were highly positive.