Unit Objectives Scientific  Investigations 2.1 Plan and conduct scientific investigations using the Scientific Process. Weather 1.7/2.6 Understand basic types, changes, and patterns in weather. Weathering 2.7 Understand the effects of weathering of the lands surface. Matter K.5/1.3/2.3 Identify the three forms of water, concept of sink and float, and investigate how materials interact with water. Magnets K.3/2.2  Identify characteristics of magnets, applications of magnetism, and key concepts such as magnetism, iron, magnetic/nonmagnetic, poles, attract/repel. Plants/Erosion 2.4/2.7 Identify the life cycle of a plant and how erosion effects the lands surface. Animals 2.4/2.5/2.7 Understand life cycles, habitats, physical adaptations and behavioral adaptations.