John Dalton, Ernest Rutherford, and J. J. Thomson all contributed to our understanding of the atom. Choose one of the scientists listed above and explain his contribution to our current understanding of atomic theory and/ or atomic models. You need at least 4 distinct facts about the scientist. You should include information about: specific experiments done by the scientist

discoveries that were made

theories that were developed

models that were proposed

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

Consider the story you just read. all but one of the choices below indicate that something is living.