Longhorn Environmental Activities for Grade 3 is an approved course book that captures the expectations of the new competency-based curriculum developed by the Kenya Institute of Curriculum Development (KICD). This book has numerous learner-centered activities that promote the acquisition of knowledge. It has carefully selected illustrations and photographs that support concepts to be learnt. It contains practical learning points that develop skills that learners need at this Level and promotes environmental conservation and sustainability by suggesting safer ways of carrying out various activities.