Particles And Nanoparticles

Question 1

Nanoparticles can be any size from ___ to ___ nanometres

Answer 1

1 to 100

Question 2

Fine particles have diameters between ______ and ________ nm

Answer 2

100

2500

Question 3

What are fine particles also known as?

Answer 3

PM 2.5

Question 4

Coarse particles have diameters between

1 x 10 -?

And

2.5 x 10 -?

Answer 4

5

6

Question 5

What are coarse particles also known as?

Answer 5

PM 10

Question 6

What are nanoparticles used as in chemical reactions?

Answer 6

Catalysts

Question 7

Nanoparticles have a very large __________ area compared with their _________

What property does this give them?

Answer 7

Surface
Volume

They react quickly

Question 8

Nanoparticles have different _________ when they are smaller than they would have on a larger scale

Answer 8

Properties

Question 9

What can nanoparticles be used in in everyday items?

3 examples

Answer 9

Medicine
Electronics
Cosmetics/Sun creams
Deodorant

Question 10

Give 3 examples of nanoparticles found/used in the body

Answer 10

Virus
Antibody
Glucose molecule

Question 11

Nano_________ currently used have been tested to ensure they cause no ___________ to individuals or to the ___________ but their _______-term effects are unknown

Answer 11

Materials
Damage
Environment
Long

Question 12

What is the disadvantage of nanoparticles?

Answer 12

We haven’t be using them for very long so they may have a negative effect on the environment