What is the difference between chemical and physical properties? Physical properties can be observed using your senses but not chemical properties.
Chemical properties are harder to change than physical properties.
Chemical properties need chemicals for any type of changes.

Which muscle is responsible for inhalation ?

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs