Questions & Answers
Browse all 20 questions from the
Exploring Nanotechnology study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What does the prefix 'nano' mean when we talk about nanotechnology?
-
A
Very big
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B
One billionth of a meter
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C
One millionth of a meter
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D
As big as a mountain
2
Nanotechnology deals with things that are smaller than what?
-
A
A dog
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B
A grain of sand
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C
A single hair on your head
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D
A car
3
What is a common example of something that uses nanotechnology to make it stronger or lighter?
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A
Wooden blocks
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B
Plastic toys
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C
Carbon fiber in sports equipment
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D
Paper drawings
4
How small are nanoparticles compared to a red blood cell?
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A
Much larger
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B
About the same size
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C
Many times smaller
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D
Invisible to the same microscopes
5
Scientists use special tools called microscopes to see things at the nanoscale. What is a very powerful type of microscope used for this?
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A
Magnifying glass
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B
Telescope
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C
Scanning Electron Microscope (SEM)
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D
Binoculars
6
Some sunscreens use nanoparticles. What do these nanoparticles help to do?
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A
Make the sunscreen taste sweet
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B
Block harmful ultraviolet (UV) rays from the sun
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C
Make the sunscreen glow in the dark
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D
Keep mosquitoes away
7
What is a material that is very commonly studied in nanotechnology because of its unique properties?
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A
Water
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B
Gold
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C
Carbon
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D
Oxygen
8
When materials are made at the nanoscale, they can behave differently. For example, what can happen to the color of gold when it's made into nanoparticles?
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A
It always stays bright yellow
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B
It can change to red or blue
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C
It becomes invisible
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D
It turns to silver
9
In medicine, nanotechnology can be used to deliver drugs directly to sick cells. What is this called?
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A
Drug delivery
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B
Cell painting
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C
Doctor's visit
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D
Medicine mixing
10
Why is it important for scientists to study nanotechnology?
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A
To build bigger buildings
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B
To invent new toys
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C
To create new materials and technologies
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D
To learn about dinosaurs
11
Which of these is NOT a size that nanotechnology typically works with?
-
A
1 nanometer
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B
10 nanometers
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C
100 nanometers
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D
1000 nanometers
12
Some smart fabrics use nanotechnology to make them do special things. What might these fabrics be able to do?
-
A
Change their own shape
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B
Become invisible
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C
Repel water or stains
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D
Fly
13
What is one advantage of using smaller particles in some materials?
-
A
They take up more space
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B
They can be more reactive or stronger
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C
They are harder to mix
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D
They make the material heavier
14
When we say a material has 'nanoscale properties,' it means its behavior is different because of its:
-
A
Color
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B
Size
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C
Shape
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D
Temperature
15
Nanotechnology can help make things more efficient. For example, what can it do for electronic devices?
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A
Make them bigger
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B
Make them use more power
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C
Make them smaller and faster
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D
Make them slower
16
What is a common example of a material that can be made much stronger using nanotechnology?
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A
Paper
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B
Wood
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C
Concrete
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D
Glass
17
The study of nanotechnology is part of what larger field of science?
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A
History
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B
Geography
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C
Physics and Chemistry
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D
Art
18
If a scientist is working on 'nanomaterials,' what are they likely creating or studying?
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A
Very large structures
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B
Materials at the atomic and molecular level
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C
New types of animals
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D
Ancient artifacts
19
What is a very famous nanomaterial that is incredibly strong and thin, made of a single layer of carbon atoms?
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A
Plastic
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B
Graphene
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C
Aluminum
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D
Rubber
20
Nanotechnology can be used to make surfaces self-cleaning. How might this work?
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A
The surface magically cleans itself
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B
Tiny machines scrub the surface
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C
Special nanoparticles repel dirt and water
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D
The surface changes color when dirty
