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What makes polymer balls bounce highest?

What makes polymer balls bounce highest? 3aoqm
At the afternoon, at the streets or playground, there’re always many children standing there and playing bouncing ball. Almost every place, different country… You could all see some children are playing bouncing ball. Bouncing polymer ball is a toy that can bounce very high when it hit the ground. It’s not a normal bouncing ball. It’s a little different, because if it put too long, it will become dry, and the function of bounce will be reduced. And you could also make it very easy, you just need some mean material, such as glue, cornstarch, borax and worm water. Polymer is many small materials stick together, it uses covalent bond to keep them stick together, the first example of polymer is come from Henri Braconnot in 1830s. Certain ingredients will affect how high a polymer ball can bounce because different materials have different functions affecting its bounce: borax links the molecules together, glue mix with the ingredients and help shape it into a ball, and corn starch makes the ball harder. Glue will help mixing other martial. First ingredient, glue. The glue will mix all the ingredients but also shape it. Because if you add borax inside, the liquid of borax and glue will become thicker. The liquid will become something more like slime. This is because the borax will change Polyvinyl alcohol, a water soluble molecule, a kind of like plastic and rubber (PVA) inside the glue. If add more the ball will be a liquid that is more like honey. But if add less the ball can’t be shape, it may be too hard, and it will very easily break apart, too. Borax will help the ball shape and links the molecules together. The next ingredient, borax. Borax can let the material linked together, it will also affect some ingredient of the ball. For example, it will help Polyvinyl alcohol(PVA) change. If you add too many borax, the ball will be too hard, it makes the ball very easy to broke apart, and hard to shape to a ball. According from the article “Strong and stretchable double network (DN) hydrogels are reported here which are consisting of first network of PVA-borax double strand and cross linked P(AM-co-HEMA) as the second network” (Dixit, Bag and Kalra). Explanation Borax can make glue harder. When borax mix with glue, the PVA inside the glue will change, it will become harder, kind of like slime. Cornstarch will help the ball shape. The last ingredient, cornstarch. Cornstarch is make of corn. Not just use it in kitchen, cornstarch can also let the bouncing ball be harder either. According to the source “By adding cornflour to the PVA and Borax mixture you now have a material which becomes harder when you give it more pressure” (Fizzicseducation). Cornstarch help ball be harder and make it more like clay. Because it is powder, so when it adds water it will become thicker, if you add more, it will make it hard. The different amount of ingredient will affect the high of the ball bounce. Different ingredient has different work to do, so it can be a bouncing ball. If you add too much, it will be something else, just like food, you need to eat vegetable, rice, and meat to let you be healthy, but if you eat too much, you will become unhealthy. The material will change how high the ball will bounce because every material has different function. Because the borax will let the glue become hard, if you add too much, you can’t shape it to a ball. The corn starch can let the ball bounce very high, if you didn’t add it or just add few it will become very soft.
At the afternoon, at the streets or playground, there’re always
This phrase/word is too simple and can be replaced with:
many
children standing there and playing
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bouncing
ball. Almost every place,
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different
country… You could all
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see
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some
children are playing
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bouncing
ball.
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Bouncing
polymer ball is a toy that can
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bounce
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very
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high
when it hit the ground. It’s not a normal
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bouncing
ball. It’s a
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little
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different
,
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because
if it put too long, it will
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become
dry, and the function of
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bounce
will be
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reduced
. And you could
also
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make
it
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very
easy, you
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just
need
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some
mean
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material
, such as
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glue
, cornstarch, borax and worm water. Polymer is
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many
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small
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materials
stick together, it
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uses
covalent bond to
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keep
them stick together, the
first
example of polymer is
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come
from Henri
Possible spelling mistake found.
Braconnot
The article is probably missing here: "in the 1830s".
in 1830s
. Certain
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ingredients
will affect how
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high
a polymer ball can
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bounce
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because
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different
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materials
have
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different
functions affecting its
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bounce
: borax links the molecules together,
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glue
mix with the
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ingredients
and
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help
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shape
it into a ball, and corn starch
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makes
the ball harder.

Glue will
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help
The verb 'help' is used with an infinitive: "to mix" or "mix".
mixing
other martial.
First
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ingredient
,
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glue
. The
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glue
will mix all the
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ingredients
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but
also
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shape
it.
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Because
if you
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add
borax inside, the liquid of borax and
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glue
will
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become
thicker. The liquid will
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become
something more like slime. This is
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because
the borax will
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change
Polyvinyl alcohol, a
This word is normally spelled with hyphen.
water soluble
molecule, a kind of like plastic and rubber (PVA) inside the
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glue
.
“If” at the beginning of a sentence usually requires a 2nd clause. Maybe a comma, question or exclamation mark is missing, or the sentence is incomplete and should be joined with the following sentence.
If
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add
more the ball will be a liquid
that is
more like honey.
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But
if
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add
less the ball can’t be
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shape
, it may be too
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hard
, and it will
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very
easily
break apart, too.

Borax will
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help
the ball
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shape
and links the molecules together. The
next
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ingredient
, borax. Borax can
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let
the
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material
linked together, it will
also
affect
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some
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ingredient
of the ball.
For example
, it will
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help
Polyvinyl alcohol(PVA)
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change
. If you
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add
too
Possible agreement error. The noun borax seems to be uncountable; consider using: "much borax", "a good deal of borax".
many borax
, the ball will be too
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hard
, it
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makes
the ball
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very
easy to broke apart, and
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hard
to
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shape
to a ball.
Did you mean: "according to"? according to: (as stated/in the opinion of)
According from
the article “Strong and stretchable double network (DN) hydrogels
are reported
here which
The verb 'consisting' is a stative verb and sometimes the progressive form is not correct. Try a simple form instead.
are consisting
of
first
network of PVA-borax double strand and
This word is normally spelled with hyphen.
cross linked
P(
Possible spelling mistake found.
AM-co-HEMA
) as the second network” (
Possible spelling mistake found.
Dixit
, Bag and
Possible spelling mistake found.
Kalra
). Explanation Borax can
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make
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glue
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harder
. When borax mix with
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glue
, the PVA inside the
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glue
will
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change
, it will
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become
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harder
, kind of like slime.

Cornstarch will
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help
the ball
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shape
. The last
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ingredient
, cornstarch. Cornstarch is
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make
of corn. Not
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just
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use
it in kitchen, cornstarch can
also
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let
the
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bouncing
ball be
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harder
either. According to the source “By adding cornflour to the PVA and Borax mixture you
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now
have a
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material
which
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becomes
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harder
when you give it more pressure” (
Possible spelling mistake found.
Fizzicseducation
). Cornstarch
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help
ball be
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harder
and
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make
it more like clay.
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Because
it is powder,
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so
when it
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adds
water it will
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become
thicker, if you
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add
more, it will
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make
it
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hard
.

The
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different
amount of
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ingredient
will affect the
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high
of the ball
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bounce
.
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Different
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ingredient
has
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different
work to do,
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so
it can be a
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bouncing
ball. If you
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add
too much, it will be something else,
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just
like food, you need to eat vegetable, rice, and meat to
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let
you be healthy,
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but
if you eat too much, you will
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become
unhealthy. The
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material
will
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change
how
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high
the ball will
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bounce
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because
every
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material
has
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different
function.
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Because
the borax will
This phrase/word (depending on the context) can be potentially replaced with :
let
the
You use this word too often, consider replacing it with
glue
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become
You use this word too often, consider replacing it with
hard
, if you
This phrase/word (depending on the context) can be potentially replaced with :
add
too much, you can’t
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shape
it to a ball. The corn starch can
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let
the ball
You use this word too often, consider replacing it with
bounce
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very
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high
, if you didn’t
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add
it or
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just
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add
few it will
You use this word too often, consider replacing it with
become
This phrase/word is too simple and can be replaced with:
very
soft.
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IELTS essay What makes polymer balls bounce highest?

Essay
  American English
5 paragraphs
619 words
6.0
Overall Band Score
Coherence and Cohesion: 5.5
  • Structure your answers in logical paragraphs
  • ?
    One main idea per paragraph
  • Include an introduction and conclusion
  • Support main points with an explanation and then an example
  • Use cohesive linking words accurately and appropriately
  • Vary your linking phrases using synonyms
Lexical Resource: 5.0
  • Try to vary your vocabulary using accurate synonyms
  • Use less common question specific words that accurately convey meaning
  • Check your work for spelling and word formation mistakes
Grammatical Range: 6.5
  • Use a variety of complex and simple sentences
  • Check your writing for errors
Task Achievement: 6.0
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • Support ideas with relevant, specific examples
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