Name: ___________________

Date:___________________

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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: 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?
10-9 m
109 m
10-6 m
106 m

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
Ultrasonic photography
Optical telescopy

Q 3: Critics of nanotechnology point to the potential toxicity of new classes of nanosubstances and compare them to
green house emissions
atom bomb
highly damaging acid rain
microscopic materials like asbestos fibres

Q 4: _____ refers to a hypothetical end-of-the-world event involving molecular nanotechnology in which out-of-control self-replicating robots consume all living matter on Earth while building more of themselves (a scenario known as ecophagy).
I Robot
Mad Nano
Apocalypse Now
Grey Goo

Q 5: While manipulating nanoparticles, the following would happen.
gravity would become less important
Van der Waals attraction would become more important
surface tension would become more important
all of these

Q 6: Potential benefits of nanotechnology might include
improvements in skin care and protection
all of these
faster computers and advanced data storage
advanced pharmaceuticals and new drug delivery systems

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Question 8: This question is available to subscribers only!


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