scientific enterprise
If supported, the theory is ___________. If the hypothesis is not supported, further ____ must be done.
2. tests
What's biogenesis?
all life comes from life
A hypothesis must be __________ in order to be useful in science.
What was the idea that life could just appear from non-living matter?
spontaneous generation
What is the first step of the cycle of scientific enterprise.
forming a theory
He poured nutrient-rich broth into flasks with S-shaped tops to test if the microbes came from air or dust particles and airborne microbes.
What does it mean if an experiment’s results do not support the hypothesis?
It means the hypothesis may be wrong or incomplete, and the scientist may need to revise the hypothesis or design new experiments.
What was the name of the french scientist who proved biogenesis?
Louis Pasteur
Name all steps of the scientific enterprise:
1. forming a theory
2. forming a testable hypothesis
3. conducting experiments
4. and analyzing the collected data.
How did Pasteurs work help people? Give three examples.
Paved the way for...
- germ theory of disease
- vaccines
- pasteurization process we still use today
-antiseptic practices
-sterilize instruments with carbolic acid