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    1.1 1.1 Presentation Transcript

    • Nature of science
      Chapter 1
    • Bellringer
      Think of five questions about the natural world.
      Write your responses in your science journal.
    • Objectives
      • Describe similarities and differences between science disciplines.
      • Describethree methods of investigation.
      • Identify some benefits of science.
      • Describehow scientific knowledge may be modified.
      • Describe five jobs that use or contribute to science.
    • Start with a Question
      • Science
      is the knowledge gained by observing the natural world. Asking questions can help you gather knowledge.
      • In Your Own NeighborhoodWhat questions can you ask about your surroundings?
      • The World and BeyondWhat questions can you ask about deserts, forests, or beaches? What type of plants and animals live in each of these places?
    • Investigation: The Search for Answers
      • Research Look up information in textbooks, encyclopedias, and magazines. Search the Internet.
      • Observation Take a look around to find answers to your question. Watch your subject.
      • Experimentation Try an experiment to learn the answers to your question. Test your hypothesis.
    • Why Ask Questions?
      • Fighting DiseasesScience has led to many life-saving discoveries, such as the vaccination for polio.
      • Answering Society’s QuestionsScience develops different technologies to address our problems, such as reducing the threat of a polluted environment.
    • Why Ask Questions?, continuedSavingResourcesScience has helped us make our natural resources last longer and to plan ahead so that resources are not used up.
    • Why Ask Questions?, continued
      • Answering Society’s Questions Sometimes, society faces questions that do not seem to have immediate answers. Scientific research often leads to the answers to those questions.
      • Advancing Scientific KnowledgeAsking questions also leads to changes or modifications in scientific knowledge. As scientists do research to answer questions, they may find new information that challenges prevailing scientific theories.
    • Scientists All Around You
      • ZoologistA person who studies the lives and needs of animals.
      • Geochemist A person who specializes in the chemistry of rocks, minerals, and soil.
      • Mechanic A person who uses science to solve problems with machines.
    • Scientists All Around You, continued
      • Oceanographer A person who studies the ocean, including waves, currents, plants, animals, and the ocean floor.
      • VolcanologistA person who studies one of Earth’s most interesting processes—volcanoes.