1. 1.2: Where do Living Things come from?
Science 8 Pathways

3. Investigating the Origin of Life
What questions do you have about where the maggots came from? What hypothesis could you come up with to investigate this? Design an experiment to test your hypothesis.

4. Spontaneous Generation (pre-1600s)
Observations:
Maggots on rotting food
Mold on bread
Mushrooms from dead tree stumps
“Spontaneous generation”: all life arose from non-living things!
What might have happened in the 1600s to overturn this idea?

5. Testing Spontaneous Generation

6. https://courses. lumenlearning

7. The Microscope Microscope: Robert Hooke:
- Invented in 1600s by Anton van Leeuwenhoek
Robert Hooke:
British scientist
Pioneer in microscopy
Discovered cells in tree tissue

9. Cell Theory All living things are made up of one or more cells.
All new cells come from pre-existing cells.
The cell is the basic unit of life.

10. Practice
Complete workbook pg. 11: we will go over the answers all together.

11. Practice/Homework Cell Theory Textbook p.15 #2 Workbook p. 11
Characteristics of Living Things
Workbook p. 4-5
Do pp. 3, 6 if have time.
Next class: Viruses! Bring library books/something to do research on. Limited number of ipads also available.
Cell Theory
Textbook p.15 #2
Workbook p. 11