This solid basis in science will start by analyzing the natural processes that we encounter every day in life. The Facts of Science Class 4 also predict the states of matter, the behaviors of solids, liquids, and gases, and the importance of the sun as the ultimate source of energy on the Earth as we know it. These tenets are explained using exemplars that are easy to learn. https://www.mentorway.in/facts-of-science-class-4-for-young-learners/