112.5. SCIENCE, GRADE 3:

   (8) Science concepts. The student knows that living organisms need food, water, light, air, a way to dispose of waste, and an environment in which to live. The student is expected to:

        (A) observe and describe the habitats of organisms within an ecosytem;

        (B) observe and identify organisms with similar needs that compete with one another for resources such as oxygen, water, food or space;

        (C) describe environmental changes in which some organisms would thrive, become ill, or perish;

   (9) Science concepts. The student knows that species have different adaptations that help them survive and reproduce in their environment. The student is expected to:

         (A) observe and identify characteristics among species that allow each to survive and reproduce;

112.6. SCIENCE, GRADE 4:

   (5) Science concepts. The student knows that complex systems may not work if some parts are removed. The student is expected to:

        (A) identify and describe the roles of some organisms in living systems such as plants in a schoolyard;

        (B) predict and draw conclusions about what happens when part of a system is removed;

   (8) Science concepts. The student knows that adaptations may increase the survival of members of a species. The student is expected to:

        (A) identify characteristics that allow members within a species to survive and reproduce;

        (B) compare adaptive characteristics of various species;

   (10) Science concepts. The student knows that complex systems may not work if some parts are removed. The student is expected to:

        (A) identify and observe effects of events that require time for changes to be noticeable including growth, erosion, disolving, weathering, and flow;

112.7. SCIENCE, GRADE 5:

   (5) Science concepts. The student knows that a system is a collection of cycles, structures, and processes that interact. The student is expected to:

        (A) describe some cycles, structures, and processes that are found in a simple system;

        (B) describe some interactions that occur in a simple system.

   (6) Science concepts. The student knows that some change occurs in cycles. The student is expected to:

        (B) identify the significance of the water, carbon, and nitrogen cycles;

   (9) Science concepts. The student knows that adaptations may increase the survival of members of a species. The student is expected to:

        (A) compare the adaptive characteristics of a species that improve their ability to survive and reproduce in an ecosystem;

        (B) analyze and describe adaptive characteristics that result in an organism's unique niche in an ecosystem;

        (C) predict some adaptive characteristics required for survival and reproduction by an organism in an ecosystem;

   (11) Science concepts. The student knows that certain past events affect present and future events. The student is expected to:

        (A) identify and observe effects of events that require time for changes to be noticeable including growth, erosion, disolving, weathering, and flow.