1) Students were investigating heat transfer by conduction and they set up the simple experiment you see here. Three spoons made of
different materials were placed in a pot of hot (90°C) water. A pat of
butter was placed on the handle of each spoon. Students were asked
to predict the order of melting butter on the three spoons, from first to
last. Which answer seems the most reasonable?
A)
tin- plastic - wood
B) plastic - tin - wood
wood - tin - plastic
D) plastic - wood - tin

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

Carbon 14 is a naturally occurring stable