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Key Terms 1
Key Terms 2
Miscellaneous & Experiments
100
What is evidence?
Apparent proof used to support something.
100
What are microorganisms?
Living organisms that cannot be seen with the naked eye.
100
What was the name of the doctor who discovered the cause of Cholera through mapping?
Dr. John Snow
200
What is inference?
To come to a conclusion based on known facts.
200
What is cholera?
A disease caused by contaminated water with fecal matter (feces).
200
What was causing the cholera epidemic in London?
Water pumps.
300
What is a particle
Very small pieces of solid or liqud matter.
300
What is a hypothesis?
An observation that can be tested or proven to be true or false.
300
Was there red dye present in cup 9? Explain
Yes even though you couldn't see it there was red dye present in small amounts due to serial dilution.
400
What is contaminate?
To make impure or pollute.
400
What is a threshold?
The first point in which you experience a change or sensation.
400
What was the point of the experiment we performed yesterday?
To determine chlorine levels in water.
500
What is parts per million/billion/trillion?
The number of parts of a substance per M/B/T of a total mixture or solution.
500
A greenish yellow gas. Attacks the tissues of the nose, throat and lungs. May form expolsive mixtures with other gases. What is this?
Chlorine
500
How do you perform a serial dilution?
Drop 10 drops of a substance in cup 1. Take 1 drop from that cup and put it in cup 2 and add 9 drops of water. Continue and clean pipet as you go.