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Scientific Method & Lab Safety Flashcards | StudBud

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Scientific Method & Lab Safety

10 terms·StudBud Administration·526 plays

Semester Review of Unit 1 and 2 Lab Safety and Scientific Method #labsafety #scientificmethod #chemistry

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Questions 10

Answers

1
In order for the apple tree experiment to be valid scientifically, both orchards must:
receive the same amount of sunlight
receive the same amount of water
all of these
have the same species of apple tree
2
What is the independent variable?
the chemical
the number of apples
the second orchard
the first orchard
3
What should be done immediately if a chemical gets in the eye?
Notify the Instructor; then use the eye-wash fountain
Nothing, unless the chemical causes discomfort
Use the eye-wash fountain; then return to the experiment
Use the eye-wash fountain; then notify the instructor
4
Ultimately, all scientific knowledge comes from:
experimentation
textbooks
both experimentation & observation
observation
5
Whom should you call in case of an emergency in the lab?
Lab Partner
Ghostbusters
Everyone
Teacher
6
What would immediately be used if a large chemical spill had occurred on your clothing?
Eye-wash fountain
Safety shower
Laboratory sinks
Fire extinguisher
7
A hypothesis must be:
experimental
testable
proven correct
observed
8
If a theory is challenged by new evidence, which of the following could occur?
the theory could be altered
the theory is accepted, not the evidence
a vote is taken on whether to accept the new evidence
the evidence is wrong
9
Theories help scientists to:
explain large bodies of data
prove hypotheses
determine truth from lies
propose new ideas
10
What should be worn in a laboratory at all times to decrease the likelihood of eye injury?
Safety Goggles
Corrective lenses
Contacts
A mask