After many experiments and observations, after many experiments and observations, jacques charles described how gases expand jacques charles described how gases expand at the same rate as a change in temperature. at the same rate as a change in temperature. this observation is represented in the formula this observation is represented in the formula v100 – v0 = kv0. these findings are not the v100 – v0 = kv0. these findings are not the basis of a scientific theory because basis of a scientific theory because a. they establish a claim that can be tested and a. they establish a claim that can be tested and retested by the scientific community retested by the scientific community b. they describe what happens in nature b. they describe what happens in nature without explaining why it happens without explaining why it happens c. they explain the relationship between gases c. they explain the relationship between gases and temperature based on observation and temperature based on observation d. they predict what will happen in nature d. they predict what will happen in nature without tests and supporting evidence without tests and supporting evidence