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English home language

Grade 7

Module 7

Chewing gum and other inventions

CHEWING GUM

Next time someone complains about your gum chewing, say you’re exercising your jaw. That’s why chewing gum was invented when it was patented by an Ohio dentist, William Semple, in 1869. Semple’s chewing gum never caught on as a jaw exerciser. Instead people preferred to chew the gum from the spruce tree because it was so flavourful. Unfortunately, this “spruce gum” became scarce because newspapers grew and ate up all the trees for paper.

At about the same time as the Ohio dentist patented his jaw-exercising gum, Thomas Adams learned about a new kind of rubber called chicle. Chicle is the rubbery sap of the sapodilla tree, which grows in parts of Central America. Adams believed that chicle could be an amazing new material if he could only find a way to vulcanise it the way Charles Goodyear had vulcanised rubber. But no matter what Adams did, chicle wouldn’t stretch or bounce or do anything useful. Adams did however notice that the Mexicans of Central America enjoyed chewing small lumps of the solidified sap.

One day while in a pharmacy, Adams overheard a young girl asking for some chewing gum. He remembered the Mexicans chewing chicle and persuaded the storeowner to try selling chicle formed into balls. Gum-chewing kids loved it and it solved the problem of the spruce gum shortage. In 1871 Adams invented a machine that rolled the chicle gum into sticks. He added flavour into it too. Before long all of America was chewing this chicle gum that was, Adams claimed, “health-giving, circulation-building, teeth-preserving, digestion-aiding, brain-refreshing, chest-developing, nerve-settling and soul-tuning”.

New gum inventions were soon on the way. Small chunks of gum were coated with candy and called little chicles, or Chiclets. When you bit into one, the candy coating squished into the flavourless gum inside. Nowadays you even have sugar-free gum for people who suffer from diabetes or who are on a diet.

Extra strong gum that could be blown into bubbles followed - Bubble Gum. By the 1950’s people around the world were chewing gum. In Japan, for example, people chewed gum flavoured to resemble green tea and pickled plums. Gum was even chewed by astronauts in space. The first gum chewing in space took place on the American Gemini 5 mission in 1965. That is the official story. Some people believe that gum was smuggled aboard earlier space flights. How did the astronauts get rid of the gum before returning to Earth? They did what thousands of school kids have done over the years when caught with gum: they swallowed it!

(With acknowledgement to ‘ Inventions’ by Valerie Wyatt)

So now you know!Ask your parents and grandparents about Chiclets chewing gum.

  1. SAY WHAT???

Use the article about Chewing Gum or your dictionary to be sure you know the meanings of the following words.

  • Patented =
  • Chicle =
  • Vulcanise =

HOW WELL DID YOU UNDERSTAND?

  • Why did William Semple invent chewing gum?
  • What was Semple’s occupation?
  • Why couldn’t Thomas Adams use chicle rubber for his original idea?
  • Why did people like spruce gum?
  • Why did spruce gum become scarce?
  • Which indigenous people inspired the invention of chewing gum?
  • Make a 5-point summary of the information in paragraphs 3 and 4.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, English home language grade 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11018/1.1
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