Warm Up

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Warm Up

• Get your notebook. Grab a notecard from the
  front. Put your name on it. Answer the following
  questions
• 1. Looking in your notes, what is the scientific
  definition for work?
• NOT THE
  FORMULA!!!!
• 2. Which ramp would require the least amount of
  work?

A. B.
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Cell Theory

• All living things are made of cells.
• Cells are the basic units of structure and
  function in all living things.
• (structure form function purpose)
• Cells come from pre-existing cells.

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Aristotle

• 334 B.C.E.
• Observed nature directly.
• He classified all known organisms as either
  plants or animals.
• B.C.E. Before Common Era

4
Hans Zacharias Janssen

• 1595
• Produced the first compound microscope by lining
  up 2 lenses.

5
Robert Hooke

• 1665
• Observed living matter from a piece of cork
  through a compound microscope, which reveals
  empty cells.
• He is the first to call the spaces in the cork
  cells which means little rooms.

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Anton van Leeuwenhoek

• 1675
• Observed living cells through a simple microscope.

7
Matthias Schleiden

• 1838
• Discovered that plants were made of cells.

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Theodor Schwann

• 1839
• States all animals are made of cells.

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William Henry Perkin

• 1856
• Develops an intense purple dye, which is used to
  stain slides.

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Rudolph Virchow

• 1858
• Rudolph Virchow states
• Where a cell exists, there must have been a
  preexisting cell.

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Create a Cell Timeline

• Label the timeline with the dates, scientist
  names, and details of the important discoveries.
• The earliest date should be on the left and the
  most recent on the right.
• 8 events 8 pictures
• Graded on neatness, accuracy, and use of color.
• List Cell Theory and the 3 parts of the Cell
  Theory.

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