1 / 24

BELL RINGER

Discover the fascinating world of chemistry and its three major categories - life science, earth science, and physical science. Learn about the scientific method, investigations, and the importance of understanding chemistry in understanding nature.

ecrouse
Download Presentation

BELL RINGER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. BELL RINGER • What is Biochemistry (In other words what do you think they study)? • What is Environmental Chemistry? • What is Nuclear Chemistry?

  2. Chemistry(IPC) Intro to chem

  3. Video https://www.youtube.com/watch?v=izeuGr0lbN0

  4. What is Chemistry?

  5. What is Science? • Science is the method used to study the natural world • Scientists ask questions and make observations to learn about the rules that govern the natural world

  6. 3 Major Categories of Science 1. Life Science - living things 2. Earth Science – earth and space 3. Physical Science – matter and energy

  7. Which Category is Chemistry? • Chemistry is a physical science • It is the study of: - what matter is made of (composition) -how it combines together (reactions) -things you can learn about it through using your senses (properties)

  8. Investigations • Scientists learn new information about the natural world through investigations: - Can be just observations - Can be experiments

  9. Why Study Chemistry? • Understanding chemistry allows us to understand nature through observations and experiments

  10. Scientific Method • Scientific Method: -The organized process scientists go through when doing research/conducting an experiment.

  11. Scientific Method State the Problem Gather Information Form a Hypothesis Test Hypothesis: Conduct Experiments Analyze Data Accept Reject Conclusions & Theories Reform Hypothesis

  12. State the Problem • State what you are going to investigate/ want to test • Maybe something you wonder why or how it happens

  13. Gather Information • Getting a background from other studies to help form a hypothesis • Researching what is already known about the problem

  14. Form a Hypothesis • A Hypothesis is atestable explanation for a problem using what you know and observe • Example: At least six hours of sleep will improve your grade on tests.

  15. Test a Hypothesis • 3 common ways to test the hypothesis: 1. Observations 2. Make a model of the real-life situation 3. Perform an experiment

  16. Experiment • Experiment: tests the hypothesis using the effect of one variable on another using a control - Carefully planned and setup - Test one variable at a time

  17. Variables • A quantity or condition that can have more than one value - independent: variable that will change - dependent: value changes in response to a change in the independent variable • Cause and effect

  18. Control • Control: A standard that does not change during the experiment - Nothing is added to it or taken away from it - Compare to the independent and dependent variables (before and after the experiment)

  19. Analyze & Collect Data • Organizing and summarizing the data from the experiment • Look for trends • Does it support your hypothesis?

  20. Conclusion • Your judgment based upon your findings • Doesn’t prove your hypothesis, only indicates it might be true!

  21. Science Terminology • Scientific Theory-an explanation of things or events based on knowledge gained from many observations and investigations • May be revised or replaced as time progresses and scientists gather more information • Heavily supported by evidence: experiment repeated many times, results always support hypothesis, so hypothesis called a theory

  22. Scientific Terminology • Scientific Law- a statement about what happens in nature that seems to be true all the time. • Used to make predictions but does not explain why something happens

  23. Law and Theory Related • A theory can be used to explain a law, but theories DO NOT become laws!!

More Related