Scientific Method
What is an observation?
What is a question you ask based on what you see
Who believed in Spontaneous Generation and what did they believe?
Aristotle - frogs came from puddles
Van Helmont - is you put dirty rags and hay together they will create rats
list the characteristics of life
1. homeostasis
2. growth and development
3. organization of cells
4. metabolism
5. response to stimuli
6. reproduction
7. evolution
List the steps of the scientific method in order
What is?
1. Observation
2. Hypothesis
3. Controlled Experiment
4. Data Collection and Analysis
5. Conclusion
What is spontaneous generation
believing that inanimate objects can reproduce
What is a conclusion?
the final result. If your hypothesis was true or false.
who was the first person to refute spontaneous generation
Francesco Redi
What was Francesco Redi's observation?
Maggots would come onto meat after flies appeared.
why did people not believe Redi's first experiment
because he closed one jar fully so no living thing can live without air.
In Francesco Redi's experiment, what was his hypothesis?
If flies don't come, then no maggots will appear.
What was Redi's Experiment?
Redi put two pieces of meat in 2 separate jars. He left one jar open and put cheesecloth over the other one. This way, air could get in but flies could not.
homeostasis
1. ingestion
2. digestion
3. exertion
4. nutrition
5. transport
6. synthesis
7.Respiration