Science is the study of the natural and physical world.
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How is scientific knowledge derived?
Partly from systematic observation, experimentation and analysis and partly from human imagination and creativity.
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How do we define technology?
The application of scientific knowledge for practical purposes.
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What is a hypothesis?
It is the possible explanation for an observation.
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What are the five attitudes that are desirable in scientific inquiry?
a. Curiosity
b. Objectivity
c. Integrity
d. Open-mindedness
e. Perseverance
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Advancements in technology have improved our lives. Technology offers great advantages but also some disadvantages.
Name one technology and give advantages and disadvantages for it.
Answers vary.
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Give an example of one limitation of technology?
Cannot stop natural disasters from occurring. Answers vary.
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Which type of flame would you use in the laboratory for heating? Why?
Non-luminous because it burns more completely/hotter.
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If you need to be away from the Bunsen burner for a few minutes, should you leave the air-hole open or closed? Why?
Closed to obtain a luminous flame so others can see it more easily.
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Label the parts of the Bunsen burner. Ignore E.
a. Barrel
b. Collar
c. Air hole
d. Gas tube or to gas tap
e. N/A
f. Base
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What is the name of this hazard symbol?
Explosive
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What is the name of this hazard symbol?
Flammable
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What is the name of this hazard symbol?
Carcinogenicity / aspiration hazard
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What is the name of this hazard symbol?
Harmful or Irritable
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This is the corrosive symbol. What does is mean?
Will eat away other substances
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This is the acute toxicity symbol. What is its meaning?