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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 English
4.17 Nano Technology

Directions: Answer the following questions and verify your answers. Do your own research and write an informative essay about nano technology.
Q 1: Critics of nanotechnology point to the potential toxicity of new classes of nanosubstances and compare them to
highly damaging acid rain
green house emissions
atom bomb
microscopic materials like asbestos fibres

Q 2: One fundamental characteristic of nanotechnology is that nanodevices self-assemble. That is, they build themselves from the bottom up. _________ is an important technique both for characterization and synthesis of nanomaterials.
Infrared detector
Scanning probe microscopy
Optical telescopy
Ultrasonic photography

Q 3: Nanotechnology is the understanding and control of matter at dimensions of roughly 1 to 100 nanometers, where unique phenomena enable novel applications. What is a nanometer?
109 m
10-6 m
106 m
10-9 m

Q 4: Potential benefits of nanotechnology might include
improvements in skin care and protection
advanced pharmaceuticals and new drug delivery systems
all of these
faster computers and advanced data storage

Q 5: A unique phenomenon that occurs in nanoparticles is Gibbs-Thomson effect, which is the _____.
instant evaporation of material
instant freezing of material
raising of the melting point of a material
lowering of the melting point of a material

Q 6: The following may be considered naturally occurring nanodevices.
all of these
prions
viruses
cells

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Question 8: This question is available to subscribers only!


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