Unit 2 science Flashcards
Chemical change
the formation of a new substance with difference properties ; cannot be undone by physical means
Circulatory system
transports nutrients and oxygen to the body
Digestive system
breaks down food to provide nutrients and energy
Endocrine system
regulates the body with hormones
Excretory system
removes waste from the body
External stimulus
a change in the environment outside of the organism
Feedback mechanism
a response within a system that influences the activity of that system
Force
a push or pull that can change the position or motion of an object/material
Homeostasis
the body’s ability to keep the internal balance of the body stable
Integumentary system
provides protection of the body
Internal stimulus
a change within the organism
Motion
a change in the position of an object
Muscular system
provides movement of the body
Nervous system
controls and coordinates the body
Physical change
a change which alters matter without changing its chemical composition or the identity of the substance
