7.4. Mark the following statements T (True), F (False) or N (Not mentioned).
A nanometer is the smallest thing occurring in nature.
Molecules are the basic units of life.
Viruses have nanoscale dimensions.
Nanoscale gets so much attention because this is where many of the mechanisms of the biological and physical world operate.
At scales above 100 nm gold looks yellow, but at scales below 100 nm it has other colors.
The developments of nanotechnology are already used in different products.
Smaller and faster chips will make computers smaller and enable them to perform many more functions more quickly.
Scientists, engineers and technologists are sure they know everything about nanotechnology.
7.5. Put the following things in the order of their size, from the smallest to the biggest one:
virus nanometer molecule human hair human cell atom
7.6. Match the words and their meaning.
7.7. Fill in the gaps with the words from 7.6 in the appropriate form.
Nanotechnology is the science of building _____ small things.
In the future, we'll be able to work on nano_____ and build things atom by atom.
A nanometer is _____ ten times the size of an individual atom.
Nanotechnology will help _____ computer performance greatly.
The manipulation of atoms or small groups of atoms to manufacture materials and devices _____ as bottom-up approach in nanotech-nology.
Nanoscale was not chosen _____ly. It is where the properties of materials are profoundly different from the properties of materials _____ in nature.
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