Animals need air, water, and food in order to live and thrive.
Plants require air, water, nutrients, and light in order to live and thrive.
Nonliving things do not live and thrive.
Nonliving things can be human-created or naturally occurring.
Living things grow, take in nutrients, breathe, reproduce, eliminate waste, and die.
All living things grow, take in nutrients, breathe, reproduce, and eliminate waste.
An organism s external physical features can enable it to carry out life functions in its particular environment.
Plants respond to changes in their environment. For example, the leaves of some green plants change position as the direction of light changes; the parts of some plants undergo seasonal changes that enable the plant to grow; seeds germinate, and leaves form and grow.
Animals respond to change in their environment, (e.g. , perspiration, heart rate, breathing rate, eye blinking, shivering, and salivating).
Senses can provide essential information (regarding danger, food, mates, etc.) to animals about their environment.
Some animals, including humans, move from place to place to meet their needs.
Particular animal characteristics are influenced by changing environmental conditions including: fat storage in winter, coat thickness in winter, camouflage, shedding of fur.
Some animal behaviors are influenced by environmental conditions. These behaviors may include: nest building, hibernating, hunting, migrating, and communicating.
The health, growth, and development of organisms are affected by environmental conditions such as the availability of food, air, water, space, shelter, heat, and sunlight.
Humans need a variety of healthy foods, exercise, and rest in order to grow and maintain good health.
Good health habits include hand washing and personal cleanliness; avoiding harmful substances (including alcohol, tobacco, illicit drugs) ; eating a balanced diet; engaging in regular exercise.
Green plants are producers because they provide the basic food supply for them- selves and animals.
All animals depend on plants. Some animals (predators) eat other animals (prey).
Animals that eat plants for food may in turn become food for other animals. This sequence is called a food chain.
Decomposers are living things that play a vital role in recycling nutrients.
An organism s pattern of behavior is related to the nature of that organism s environment, including the kinds and numbers of other organisms present, the availability of food and other resources, and the physical characteristics of the environment.
When the environment changes, some plants and animals survive and reproduce, and others die or move to new locations.
Plants manufacture food by utilizing air, water, and energy from the Sun.
The Sun s energy is transferred on Earth from plants to animals through the food chain.
Heat energy from the Sun powers the water cycle (see Physical Science Key Idea 2).