Demonstrate safe practices during classroom and field investigations.

Ask questions about organisms, objects, and events.

Gather information using simple equipment and tools to extend the senses.

Communicate findings about simple investigations.

Discuss and justify the merits of decisions.

Identify and use senses as tools of observation.

Manipulate, predict and identify parts of objects such as toys, vehicles, or construction sets that, when put together, can do things they cannot do by themselves.

Observe and record stages in the life cycle of organisms in their natural environment.

Record and compare collected information.

Collect information using tools including rulers, meter sticks, measuring cups, clocks, hand lenses, computers, thermometers, and balances.

Identify the external characteristics of different kinds of plants and animals that allow their needs to be met.

Plan and implement descriptive investigations including asking well-defined questions, formulating testable hypotheses, and selecting and using equipment and technology.

Analyze and interpret information to construct reasonable explanations from direct and indirect evidence.

Collect and analyze information using tools including calculators, microscopes, cameras, safety goggles, sound recorders, clocks, computers, thermometers, hand lenses, meter sticks, rulers, balances, magnets, and compasses.

Observe and identify organisms with similar needs that compete with one another for resources such as oxygen, water, food, or space.

Describe how living organisms modify their physical environment to meet their needs such as beavers building a dam or humans building a home.

Demonstrate that repeated investigations may increase the reliability of results.

Collect and analyze information using tools including calculators, microscopes, safety goggles, sound recorders, computers, thermometers, hand lenses, meter sticks, rulers, balances, magnets, hot plates, timing devices, collecting nets, and compasses.

Compare the adaptive characteristics of species that improve their ability to survive and reproduce in an ecosystem.

Predict some adaptive characteristics required for survival and reproduction by an organism in an ecosystem.

Identify and describe the changes in position, direction of motion, and speed of an object when acted upon by force.

Describe the energy flow in living systems including food chains and food webs.

Observe and describe the role of ecological succession in ecosystems.

Extrapolate from collected information to make predictions.

Evaluate the model and make recommendations for improving the model.

Identify that change in environmental conditions can affect the survival of individuals and of species.

Analyze how natural or human events may have contributed to the extinction of some species.

Calculate speed, momentum, acceleration, work and power in systems such as in the human body, moving toys, and machines.

Interpret interactions among organisms exhibiting predation, parasitism, commensalisms, and mutualism.

Make observations and compile data about fluctuations in a biotic cycle and evaluate the effects of biotic factors on local ecosystems and biomes.

Predict how the introduction, removal or reintroduction of an organism may alter the food chain and affect existing populations.