Intro to Physical Science Science Natural Sciences Physical

Intro to Physical Science

Science?

Natural Sciences Physical Science Chemistry Earth and Space Science Physics Biology (Life Science)

Chemistry The study of: n the composition (make-up) of matter n the changes that matter undergoes

Physics The study of the physical world including motion, energy, light, electricity, magnetism, sound etc.

Physics Concepts include n Mass: the amount of matter in an object. n Weight: The force with which the earth pulls on an object. n Force: A push or a pull n Energy: Ability to do work(to apply a force and move an object. )

Scientific Method n Recognize a problem n Hypothesis- an educated guess, must be testable. n Observation -measurement, data collection (experiment) n Conclusion

Scientific Theory n. A well- tested explanation for a set of observations.

Scientific Law or Principle n Describes and summarizes an observed pattern in nature without attempting to explain it. n A hypothesis that has been repeatedly tested and not contradicted. n Change or are abandoned when contradicted.

Scientific Models n. A representation of an object or an event, that helps us visualize and understand them.

Demo n Catching a falling ruler

Law or Principle n. A hypothesis that has been repeatedly tested and not contradicted n Change or are abandoned when contradicted

Scientific Fact n Observation n May change

Science and Technology n Pure Science Done for the sake of knowledge n Applied Science (Technology) Done with a purpose of solving a problem. Has an application.

Pure Science or Technology?

Pure Science or Technology?

Pure Science or Technology?

Pure Science or Technology?