This document discusses different material properties including fibers, rubber, clay, glass, and wood. It provides details on:
- The types of natural and synthetic fibers and their properties. Fibers can be used to make textiles.
- The properties of natural rubber which is elastic and synthetic rubbers which are resistant to heat and chemicals. Common synthetic rubbers like NBR and CR are described.
- Clay materials which are plastic when wet and hard when dry, and are used to make ceramics. Ceramics are divided into traditional and fine ceramics.
- Glass which is obtained by cooling melted materials and is used for home items, lab equipment, and buildings. Glass is resistant to water and
CBSE Class 8 / VIII General Ccience Power Point Presentation
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Praveen M Jigajinni
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CBSE Class 8 / VIII General Ccience Power Point Presentation
Prepared By
Praveen M Jigajinni
DCSc & Engg,PGDCA,ADCA,MCA,MSc(IT),MTech(IT), M.Phil (Comp Sci)
For Any Queries Please feel free to contact:
Email Id : praveenkumarjigajinni@gmail.com
Cell No: 9431453730
Synthetic fibres are man-made fibres. Synthetic fibres are made from different chemicals. Each kind of synthetic fibres have their own properties. Synthetic fibres are more in length and are long lasting. The only limitation in synthetic fibres is that they are poor absorbents of moisture and they catch fire easily.
Class 8 NCERT Science Chapter-3 Synthetic Fibers PPTPragyaC1
Hi everyone,
This is my presentation for Chapter 3 of Science Class 8. This presentation is well made and has all the important topics required by a 8th grader. There's also additional information for proper foundation in the given topics. If you are satisfied by the presentation, then please comment and like!!! It will help me to provide more content in various subjects
Thank you :0
Chapter - 3, Synthetic Fibres and Plastics, Science, Class 8Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 3, Synthetic Fibres and Plastics, Science, Class 8
FIBRES AND FABRICS
TYPES OF FIBRES
NATURAL FIBRES
SYNTHETIC FIBRES
RAYON
NYLON
POLYESTER
ACRYLIC
CHARACTERISTICS OF SYNTHETIC FIBRES
PLASTICS
TYPES OF PLASTICS
THERMOPLASTICS
THERMOSETTING PLASTICS
PROPERTIES OF PLASTICS
SOME USES OF PLASTICS
BIODEGRADABLE SUBSTANCES
NON - BIODEGRADABLE SUBSTANCES
PLASTICS AND THE ENVIRONMENT
PREVENTION OF PLASTICS
3 R PRINCIPLE
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
A REVIEW ON CHEMICAL AND PHYSICAL PROPERTIES OF NATURAL FIBER REINFORCED COMP...IAEME Publication
This review paper examines the chemical properties of natural fiber reinforced polymer bonded composites and the processing techniques are compared for the reinforced composite materials. The chemical properties of the different natural fibers composites were compared. Present days natural fibers are attracting many scholars and researchers due to its cost and largely available in nature also processing of these fibers is not hard in comparison to the conventional fibres production. Also, Environmental awareness and a growing concern with the greenhouse effect have triggered the construction, automotive, and packing industries to watch out for eco-friendly materials that can replace conventional synthetic polymeric fibres. Natural fibers seem to be a good alternate because they are readily available in fibrous form and can be extracted from herb leaves at very low costs. By these reasons the natural fibers are trusted over the regular fibers.
Synthetic fibres are man-made fibres. Synthetic fibres are made from different chemicals. Each kind of synthetic fibres have their own properties. Synthetic fibres are more in length and are long lasting. The only limitation in synthetic fibres is that they are poor absorbents of moisture and they catch fire easily.
Class 8 NCERT Science Chapter-3 Synthetic Fibers PPTPragyaC1
Hi everyone,
This is my presentation for Chapter 3 of Science Class 8. This presentation is well made and has all the important topics required by a 8th grader. There's also additional information for proper foundation in the given topics. If you are satisfied by the presentation, then please comment and like!!! It will help me to provide more content in various subjects
Thank you :0
Chapter - 3, Synthetic Fibres and Plastics, Science, Class 8Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 3, Synthetic Fibres and Plastics, Science, Class 8
FIBRES AND FABRICS
TYPES OF FIBRES
NATURAL FIBRES
SYNTHETIC FIBRES
RAYON
NYLON
POLYESTER
ACRYLIC
CHARACTERISTICS OF SYNTHETIC FIBRES
PLASTICS
TYPES OF PLASTICS
THERMOPLASTICS
THERMOSETTING PLASTICS
PROPERTIES OF PLASTICS
SOME USES OF PLASTICS
BIODEGRADABLE SUBSTANCES
NON - BIODEGRADABLE SUBSTANCES
PLASTICS AND THE ENVIRONMENT
PREVENTION OF PLASTICS
3 R PRINCIPLE
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
A REVIEW ON CHEMICAL AND PHYSICAL PROPERTIES OF NATURAL FIBER REINFORCED COMP...IAEME Publication
This review paper examines the chemical properties of natural fiber reinforced polymer bonded composites and the processing techniques are compared for the reinforced composite materials. The chemical properties of the different natural fibers composites were compared. Present days natural fibers are attracting many scholars and researchers due to its cost and largely available in nature also processing of these fibers is not hard in comparison to the conventional fibres production. Also, Environmental awareness and a growing concern with the greenhouse effect have triggered the construction, automotive, and packing industries to watch out for eco-friendly materials that can replace conventional synthetic polymeric fibres. Natural fibers seem to be a good alternate because they are readily available in fibrous form and can be extracted from herb leaves at very low costs. By these reasons the natural fibers are trusted over the regular fibers.
All basics about synthetic fibers and different types of synthetic fibers & characteristics of each synthetic fibers we are using in our day today life .
Types of Textile Fibre & Classification DescriptionTextile Industry
Textile fiber is the basic and principle raw materials to produce various types of textile finished products. A fiber that can be spun into yarn or processed into textile such as a woven fabric, knit fabric, lace, felt, non-woven etc by means of an appropriate interlacing method is called as textile fiber.
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June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
How to Make a Field invisible in Odoo 17Celine George
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2. 1. Fiber Materials
a similar network of yarn or long
ribbons derived from animals or
plants. Fiber is used for making
paper, textile, and rope (the main
ingredient of the rope). consisting
of natural fibers and synthetic
fibers
Fiber properties: not rigid and
flammable.
3. Natural Fibers
Natural fiber materials obtained from plants,
animals, and minerals.
Plant fibers are obtained from plant cellulose,
for example from cotton, kapok, and hemp.
Examples of textiles from cellulose are cotton
and linen.
Animal fiber in the form of protein fibers can be
obtained from sheep's hair, mesh yarn produced
by
profit spider, and silkworm cocoons.
Examples of textiles of protein fibers
are wool and silk.
Mineral fiber, commonly made
4. Synthetic
Fibers
• Synthetic fibers are
fibers made by
humans, their basic
ingredients are not
available directly from
nature.
• Examples of fabrics
made of synthetic
fibers are rayon,
5. Mixed Fiber
Use of natural and synthetic
ingredients can be mixed to
improve the quality of the
ingredients. Examples of
textiles of mixed fiber
materials are: TC (Tetoron Cotton) mixture
of polyester and cotton.
TR (Tetoron Rayon) mixture
of polyester and rayon.
6. 2. Rubber Materials
Rubber is produced by a
rubber tree in the form of
latex-like milk called latex.
Latex is obtained by
tapping, by slashing the
bark of the tree or on the
part of the plant cortex.
Chemically natural rubber
is a hydrocarbon
compound which is a
natural polymer of natural
latex clumping and is a
polyisoprene
macromolecule (C5H8) n.
7. Properties of Natural
Rubber
Natural rubber has good
elastic or resilient power,
good plasticity,
easy to process, not easy to
wear (not easy to run out of
friction), and not easy to heat,
have high resistance to crack,
hold repetitive beat, and also
high stickiness to various
materials.
9. Here are some types of synthetic
rubber with its properties and
usefulness.
NBR (Nytrile Butadiene Rubber).
NBR has a high resistance to oil,
used in the manufacture of rubber
pipes for gasoline and oil,
membranes, seals, gaskot, and
other equipment widely used in
motor vehicles.
CR (Chloroprene Rubber), CR with
flame resistant characteristics, is
used as rubber pipe material, cable
wrapper, seal, gaskot, and carrier
belt.
IIR (Isobutene Isoprene Rubber),
10. 3. Clay
Material
Clay is the basic material used in making
ceramics. Clay chemically includes alumina
hydrosilicate. The physical properties of the
clay are plastic when it is wet, hard if dry, and
when burned becomes solid and strong.
Generally, goods made from clay are called
ceramics. However, not all ceramics today
come from clay.
11. Ceramics divided into two groups:
1) Traditional Ceramics
Traditional ceramic raw material from clay.
Based on the composition of the clay and its combustion
temperature, traditional ceramics are divided into pottery
(terracotta), earthenware, stoneware, and porcelain.
2) Fine ceramics
Fine ceramics or engineering ceramics whose raw materials
are from metal or metal oxides, such as: metal oxides
(Al2O3, ZrO2, MgO,)
These fine ceramics are used as heating elements,
semiconductors, turbine components, and in the
medical field.
12. 4. Glass Material
A glass is a solid, which is a
chemical compound with a
complex arrangement,
obtained by freezing the
melt through cooling.
Ready-made glassware
includes home furnishings
(glass plates, glass cups,
glass bottles, etc.),
laboratory equipment (test
tubes, glass pipes, glass
beads, magnifying glass,
etc.), building or industrial
materials such as window
13. The Properties of Glass
Materials
It is resistant to water, gas, odors and microorganisms.
Can not react with packaged goods (chemicals).
Can be recycled.
Can be closed again after opening.
Translucent so that its contents can be seen.
Provide added value for the product (aesthetic value).
Rigid and strong so that it can be stacked without
damage.
Glasses can be stored for a long period without damage.
14. 5. Wood
Materials
Wood is used for various
purposes because it
contains important
components of cellulose,
lignin, and extractive
compounds (certain
compounds that can be
taken from wood).
Utilization of wood
adapted to its properties.
Woods of different tree
species have different
properties.
15. Properties of Wood
1. Specific Weight
Specific gravity relates to the strength of the wood. In
general, the higher the density of wood, the wood is also
stronger.
2. Durability
The durability of wood is due to the content of extractive
compounds in the wood. Teak wood has extractive
tectoquinon, ulin wood contains silica. Both types of wood
have a high degree of durability.
3. Color
Colorful woods are caused by color fillers in wood, their
position in stems, tree age and environment. The wood
from the old tree is darker than the young wood even
16. 4. Texture
Texture is a relative measure of wood fiber,
which is coarse, medium, and smooth
texture.
5. Impression Profit
Impression of touch is the impression gained
when touching the surface of the wood
(rough, smooth, slippery, cold, oily, and
others). The impact of each type of wood
varies depending on the texture of wood,
Properties of Wood
17. 6. Smell and Pain
The smell and taste of wood easily disappear when
old wood is stored in the open air. Some wood
species have a stimulating odor. To express the
smell of the wood, often used the smell of something
commonly known things such as the smell of onion
(kulim wood) and the smell of tanners (teak).
7. Decorative Value
Decorative value relates to beauty. Wood decorative
values depend on the pattern of color distribution,
fiber direction, texture, and appearance of certain
patterns.
8. Hardness or Density
Wood hardness is directly related to wood weight.
Properties of Wood