Nano particles - Phoenix Hoyle | Library

1

Nanoparticles are structures,__________  nanometres (nm) in size, that usually contain only a few ____________  atoms. 
This means that nanoparticles are around ________  times larger than atoms and simple molecules.

Other Answer Choices:

hundred

100

1-100

1

_______ nm2

3

surface area = _______ mm2
volume = _______ mm3
surface area to volume ratio = _______ 

3

surface area = _______ mm2
volume = _______ mm3
surface area to volume ratio = 1:10

1

As the diameter ______________      the surface to volume ratio _______________.

Other Answer Choices:

decreases

increases

1

_______ : 1

5

nanoparticles show different properties to ___________ particles of the same material as  their ____________  area to volume ratio is much larger.
Nanoparticles may
be harmful
have ______________  effects 
Hard to establish the long-term effects as nano particles are a new technology
so the harmful effects have not been fully _________________
 To reduce the concerns
more research is needed to establish safe levels that are specific to each application or _________of nano particle
    labelling to show when nano particles used.