1. Objective
Given information about the development of cell theory, summarize the contributions of scientists and/or state the cell theory and characteristics of living things.

2. Early Scientists

3. Anton van Leeuwenhoek
First compound light microscope

4. Robert Hooke
Coined the term “cell”

5. Matthias Schlieden
All plants are made of cells

6. Theodor Schwann
All animals are made of cells

7. Rudolf Virchow
Cells can only arise from pre-existing cells

8. Cell Theory All living things are made up of cells.
The cell is the basic unit of life.
Cells arise from pre-existing cells.

9. Why we cannot see cells ?
We cannot see small organisms like bacteria without microscope.
Because they are made up usually one cell, which is very small and cannot be seen with the naked eye.
Tip of your pen can hold thousands of cells.

10. Germ Theory of Disease
Microscopic organisms cause diseases.
Pasteur

12. Why do we care today?

14. Warm-up What are 3 things that you know about cells?
What are 3 things that you want to learn about cells?

15. Characteristics of Life
Observing Living Things

16. Growing Plants

17. Growing Toy Alligator
Video

18. Growing Volcanoes
Video

19. Growing Mold

20. Which things are living?
Plant
Toy Alligator
Volcano
Mold
List the things that make each thing living or non-living (will help you in your project)

21. Write three living things and three non-living things in your notes.

22. Mold Solving a Labyrinth

23. Five Characteristics of Life
Living Things
Response to surroundings/ Adapt to their environment
Needs energy
Growth and Development
Reproduction
Get rid of waste that builds up in its body.

24. Important points Another name for living things is organisms.
All organisms are made up one or more cells.
A cell is the smallest part of a living thing.
Single celled organisms are called unicellular.
Organisms made up of many cells are called multicellular.