Science Matters for Primary Schools is a science course that has been deliberately developed with the Primary School pupil in mind. The course sets out to gently introduce science as a functional and practical subject. It draws interesting scientific examples from the learner’s familiar environment. The experiments and activities that are used to illustrate scientific principles shall be easy to apply in almost every classroom in Africa. Besides, the pupil-friendly approach makes it possible for the learner to comfortably benefit from the course with minimum guidance from the teacher. This specific volume has been prepared for use in class 6 in Kenyan schools, on the basis of the 2002 syllabus. The authors have many years of experience as teachers and examiners of science in Primary and Secondary Schools as well as Teacher Training Colleges. They have also been widely involved with curriculum development.