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
Semoga ia dapat membantu pelajar untuk membuat ulangkaji di saat-saat terakhir sebelum menghadapi PMR. Remember!! SCIENCE is EASY. Good luck and may God bless all of you from cikguremy.blogspot.com
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
Semoga ia dapat membantu pelajar untuk membuat ulangkaji di saat-saat terakhir sebelum menghadapi PMR. Remember!! SCIENCE is EASY. Good luck and may God bless all of you from cikguremy.blogspot.com
Chapter:Materials:Metals and non metals class8MananRavi
This pdf contains the class 8 chapter number-4 Materials: Metals and Non metals. This will surely help students cover the whole chapter virtually. In this current pandemic time it will be a great source for students as well as teachers.
It contains:
- Physical properties
- Chemical properties
- Use of metals and non metals
- Reactions with acid
- Reaction with bases
Chemistry with Advanced Lab
Scoring Guides
All calculations must be shown.
All discussions should be completed:
using an original post formatted as a paragraph
having two replies with specific information from the other
student’s original post
Essay questions are answered in paragraph form.
A few little reminders:
1. A paragraph is at least 6 full sentences.
2. When submitting ANY form of research, the sources and citations must follow the MLA standards.
3. The font needs to be 12pt in New Times Roman black.
4. Double space line spacing
5. Use at least 3 acceptable sources (Wikipedia is not accepted)
Be sure to check your Writing and MLA Expectations
Unit 1 Introduction to Chemistry
Labs 3 and 4: Density Lab
Lab 3-Measurements
Lab 4-Density
o Format
How I Collect and Process Data o Identify data o
Explain how to use the data to form information
o Explain how to combine information to form
knowledge
No Two Watches o Record data o Analyze data o
Observation
Experience with Safety o Description of what
was going on o Explanation of why safety is
important o Explanation of precautions
Scoring Guide – 80 Points Possible
Points
Received
Points
Possible
20 Comments on Research
20 Processing data
20 Comparison of Two watches
20 Explanation of safety
Unit 2 Chemistry All Around
Assignment: Properties
Choose 6 physical properties specific to the
object
Scoring Guide – 45 Points Possible
Points
Received
Points
Possible
15 Statue
15 Wooden Ball
15 Eraser
Journal: Seltzer in Water
Identify chemical and physical reactions
Use observations to support types of reactions
Scoring Guide – 20 Points Possible
Points
Received
Points
Possible
10 Identify reactions
10 Support type of reaction with observations
Lab 6: Chemical and Physical Changes Lab
Pre-lab
o Define chemical and physical properties and give examples
o Explain sublimation
Lab o Use aspirin to make solutions o React one
solution with sodium bicarbonate o React the solution
with sodium bicarbonate with citric acid
Post-lab questions o Identify examples as
chemical or physical changes o Discuss the result
from the lab
Scoring Guide – 100 Points Possible
Points
Received
Points
Possible
15 Pre-lab questions
35 Chart
50 Post-lab questions 5 points each
Activity: Chromatography
Observe first marker
Observe second marker
Note difference and causes
Theorize reasons for differences
Note if there are similar color components in the two markers
Scoring Guide – 25 Points Possible
Points
Received
Points
Possible
5 Observation of first marker
5 Observations of second marker
5 Differen ...
Chapter:Materials:Metals and non metals class8MananRavi
This pdf contains the class 8 chapter number-4 Materials: Metals and Non metals. This will surely help students cover the whole chapter virtually. In this current pandemic time it will be a great source for students as well as teachers.
It contains:
- Physical properties
- Chemical properties
- Use of metals and non metals
- Reactions with acid
- Reaction with bases
Chemistry with Advanced Lab
Scoring Guides
All calculations must be shown.
All discussions should be completed:
using an original post formatted as a paragraph
having two replies with specific information from the other
student’s original post
Essay questions are answered in paragraph form.
A few little reminders:
1. A paragraph is at least 6 full sentences.
2. When submitting ANY form of research, the sources and citations must follow the MLA standards.
3. The font needs to be 12pt in New Times Roman black.
4. Double space line spacing
5. Use at least 3 acceptable sources (Wikipedia is not accepted)
Be sure to check your Writing and MLA Expectations
Unit 1 Introduction to Chemistry
Labs 3 and 4: Density Lab
Lab 3-Measurements
Lab 4-Density
o Format
How I Collect and Process Data o Identify data o
Explain how to use the data to form information
o Explain how to combine information to form
knowledge
No Two Watches o Record data o Analyze data o
Observation
Experience with Safety o Description of what
was going on o Explanation of why safety is
important o Explanation of precautions
Scoring Guide – 80 Points Possible
Points
Received
Points
Possible
20 Comments on Research
20 Processing data
20 Comparison of Two watches
20 Explanation of safety
Unit 2 Chemistry All Around
Assignment: Properties
Choose 6 physical properties specific to the
object
Scoring Guide – 45 Points Possible
Points
Received
Points
Possible
15 Statue
15 Wooden Ball
15 Eraser
Journal: Seltzer in Water
Identify chemical and physical reactions
Use observations to support types of reactions
Scoring Guide – 20 Points Possible
Points
Received
Points
Possible
10 Identify reactions
10 Support type of reaction with observations
Lab 6: Chemical and Physical Changes Lab
Pre-lab
o Define chemical and physical properties and give examples
o Explain sublimation
Lab o Use aspirin to make solutions o React one
solution with sodium bicarbonate o React the solution
with sodium bicarbonate with citric acid
Post-lab questions o Identify examples as
chemical or physical changes o Discuss the result
from the lab
Scoring Guide – 100 Points Possible
Points
Received
Points
Possible
15 Pre-lab questions
35 Chart
50 Post-lab questions 5 points each
Activity: Chromatography
Observe first marker
Observe second marker
Note difference and causes
Theorize reasons for differences
Note if there are similar color components in the two markers
Scoring Guide – 25 Points Possible
Points
Received
Points
Possible
5 Observation of first marker
5 Observations of second marker
5 Differen ...
Improving profitability for small businessBen Wann
In this comprehensive presentation, we will explore strategies and practical tips for enhancing profitability in small businesses. Tailored to meet the unique challenges faced by small enterprises, this session covers various aspects that directly impact the bottom line. Attendees will learn how to optimize operational efficiency, manage expenses, and increase revenue through innovative marketing and customer engagement techniques.
Personal Brand Statement:
As an Army veteran dedicated to lifelong learning, I bring a disciplined, strategic mindset to my pursuits. I am constantly expanding my knowledge to innovate and lead effectively. My journey is driven by a commitment to excellence, and to make a meaningful impact in the world.
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...BBPMedia1
Marvin neemt je in deze presentatie mee in de voordelen van non-endemic advertising op retail media netwerken. Hij brengt ook de uitdagingen in beeld die de markt op dit moment heeft op het gebied van retail media voor niet-leveranciers.
Retail media wordt gezien als het nieuwe advertising-medium en ook mediabureaus richten massaal retail media-afdelingen op. Merken die niet in de betreffende winkel liggen staan ook nog niet in de rij om op de retail media netwerken te adverteren. Marvin belicht de uitdagingen die er zijn om echt aansluiting te vinden op die markt van non-endemic advertising.
[Note: This is a partial preview. To download this presentation, visit:
https://www.oeconsulting.com.sg/training-presentations]
Sustainability has become an increasingly critical topic as the world recognizes the need to protect our planet and its resources for future generations. Sustainability means meeting our current needs without compromising the ability of future generations to meet theirs. It involves long-term planning and consideration of the consequences of our actions. The goal is to create strategies that ensure the long-term viability of People, Planet, and Profit.
Leading companies such as Nike, Toyota, and Siemens are prioritizing sustainable innovation in their business models, setting an example for others to follow. In this Sustainability training presentation, you will learn key concepts, principles, and practices of sustainability applicable across industries. This training aims to create awareness and educate employees, senior executives, consultants, and other key stakeholders, including investors, policymakers, and supply chain partners, on the importance and implementation of sustainability.
LEARNING OBJECTIVES
1. Develop a comprehensive understanding of the fundamental principles and concepts that form the foundation of sustainability within corporate environments.
2. Explore the sustainability implementation model, focusing on effective measures and reporting strategies to track and communicate sustainability efforts.
3. Identify and define best practices and critical success factors essential for achieving sustainability goals within organizations.
CONTENTS
1. Introduction and Key Concepts of Sustainability
2. Principles and Practices of Sustainability
3. Measures and Reporting in Sustainability
4. Sustainability Implementation & Best Practices
To download the complete presentation, visit: https://www.oeconsulting.com.sg/training-presentations
What are the main advantages of using HR recruiter services.pdfHumanResourceDimensi1
HR recruiter services offer top talents to companies according to their specific needs. They handle all recruitment tasks from job posting to onboarding and help companies concentrate on their business growth. With their expertise and years of experience, they streamline the hiring process and save time and resources for the company.
Unveiling the Secrets How Does Generative AI Work.pdfSam H
At its core, generative artificial intelligence relies on the concept of generative models, which serve as engines that churn out entirely new data resembling their training data. It is like a sculptor who has studied so many forms found in nature and then uses this knowledge to create sculptures from his imagination that have never been seen before anywhere else. If taken to cyberspace, gans work almost the same way.
3.0 Project 2_ Developing My Brand Identity Kit.pptxtanyjahb
A personal brand exploration presentation summarizes an individual's unique qualities and goals, covering strengths, values, passions, and target audience. It helps individuals understand what makes them stand out, their desired image, and how they aim to achieve it.
Cracking the Workplace Discipline Code Main.pptxWorkforce Group
Cultivating and maintaining discipline within teams is a critical differentiator for successful organisations.
Forward-thinking leaders and business managers understand the impact that discipline has on organisational success. A disciplined workforce operates with clarity, focus, and a shared understanding of expectations, ultimately driving better results, optimising productivity, and facilitating seamless collaboration.
Although discipline is not a one-size-fits-all approach, it can help create a work environment that encourages personal growth and accountability rather than solely relying on punitive measures.
In this deck, you will learn the significance of workplace discipline for organisational success. You’ll also learn
• Four (4) workplace discipline methods you should consider
• The best and most practical approach to implementing workplace discipline.
• Three (3) key tips to maintain a disciplined workplace.
Discover the innovative and creative projects that highlight my journey throu...dylandmeas
Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
What is the TDS Return Filing Due Date for FY 2024-25.pdfseoforlegalpillers
It is crucial for the taxpayers to understand about the TDS Return Filing Due Date, so that they can fulfill your TDS obligations efficiently. Taxpayers can avoid penalties by sticking to the deadlines and by accurate filing of TDS. Timely filing of TDS will make sure about the availability of tax credits. You can also seek the professional guidance of experts like Legal Pillers for timely filing of the TDS Return.
Memorandum Of Association Constitution of Company.pptseri bangash
www.seribangash.com
A Memorandum of Association (MOA) is a legal document that outlines the fundamental principles and objectives upon which a company operates. It serves as the company's charter or constitution and defines the scope of its activities. Here's a detailed note on the MOA:
Contents of Memorandum of Association:
Name Clause: This clause states the name of the company, which should end with words like "Limited" or "Ltd." for a public limited company and "Private Limited" or "Pvt. Ltd." for a private limited company.
https://seribangash.com/article-of-association-is-legal-doc-of-company/
Registered Office Clause: It specifies the location where the company's registered office is situated. This office is where all official communications and notices are sent.
Objective Clause: This clause delineates the main objectives for which the company is formed. It's important to define these objectives clearly, as the company cannot undertake activities beyond those mentioned in this clause.
www.seribangash.com
Liability Clause: It outlines the extent of liability of the company's members. In the case of companies limited by shares, the liability of members is limited to the amount unpaid on their shares. For companies limited by guarantee, members' liability is limited to the amount they undertake to contribute if the company is wound up.
https://seribangash.com/promotors-is-person-conceived-formation-company/
Capital Clause: This clause specifies the authorized capital of the company, i.e., the maximum amount of share capital the company is authorized to issue. It also mentions the division of this capital into shares and their respective nominal value.
Association Clause: It simply states that the subscribers wish to form a company and agree to become members of it, in accordance with the terms of the MOA.
Importance of Memorandum of Association:
Legal Requirement: The MOA is a legal requirement for the formation of a company. It must be filed with the Registrar of Companies during the incorporation process.
Constitutional Document: It serves as the company's constitutional document, defining its scope, powers, and limitations.
Protection of Members: It protects the interests of the company's members by clearly defining the objectives and limiting their liability.
External Communication: It provides clarity to external parties, such as investors, creditors, and regulatory authorities, regarding the company's objectives and powers.
https://seribangash.com/difference-public-and-private-company-law/
Binding Authority: The company and its members are bound by the provisions of the MOA. Any action taken beyond its scope may be considered ultra vires (beyond the powers) of the company and therefore void.
Amendment of MOA:
While the MOA lays down the company's fundamental principles, it is not entirely immutable. It can be amended, but only under specific circumstances and in compliance with legal procedures. Amendments typically require shareholder
Memorandum Of Association Constitution of Company.ppt
Ionic vs cova conductiv honors
1. Names:____________________________________________________________________________
Date:___________________ Per:__________________
COMPARING IONIC and COVALENT COMPOUNDS
Purpose:
• To compare physical properties of ionic and covalent compounds
• To determine whether an unknown substance is ionic or covalent
• To build a conductivity tester
• Identify conductors and insulators
Background:
Why does electricity only flow through the copper on a circuit board? Simple! Copper, like most metals, is a
conductor of electricity. That means that electricity can easily flow through it, as opposed to an insulator which
is a material that electricity does not easily flow through, like rubber or plastic. And then there are
semiconductors, but we’ll save them for a different episode.
So why does electricity flow easily through conductors? Well, that is a little more complicated to explain.
Basically, think of electricity as energy that flows through electrons. [Reminder: electrons are the tiny,
negatively charged subatomic particles that orbit around the nucleus of the atom.] Some of the outermost
electrons of metal atoms aren’t strongly attracted to the nucleus. This creates a sort of “cloud” of electrons that
easily move around, thereby easily allowing them to transfer energy.
In order for electricity to flow through a circuit, the circuit must be a complete loop – from the battery, to a
device, then back to the battery, through a conducive material. This is called a “closed circuit.” The two open
alligator clips act as a type of switch, controlling when the circuit is open or closed. When a conductive material
is placed between the two clips, the circuit is complete and electricity can flow.
By the way, it is important to connect the buzzer as I described above. It is like a one-way street – electricity
can only flow one direction through it. Connect it the other way and it won’t work! There are several devices
like this, just like there are some that can electricity flow through either direction (like a light bulb).
Pre-lab Questions:
1) Based on what you’ve learned about electronegativity differences and bond types, predict which group of
elements (A-C), (D-F) or (G, H) are ionic and which are covalent and which are metallic. Explain your
reasoning for each choice
2) Outline the procedure.
Materials: SOLIDS LIQUIDS
Lab burner sodium chloride (A) Isopropyl alcohol (I)
Conductivity apparatus potassium iodide (B) Vinegar (5% acetic acid) (J)
Scoopula or spoons baking soda (C) De-ionized water (K)
Deflagrating spoon/aluminum foil sugar (D) Tap water (L)
Watch glass/paper camphor (E)
Beaker /cups Aspirin (F) OTHER
Paper clip (G) Unknown solid
Aluminum strips (H)
Safety precautions:
Safety goggles must be worn. Use caution when heating compounds. Follow instructions for the conductivity
meter.
2. Names:____________________________________________________________________________
Date:___________________ Per:__________________
PROCEDURE:
1) Complete a chart for your observations. And GIVE IT A TITLE.
2) Collect a small pea size sample of each compound
Observations/Physical Properties
3) Try to detect if any substances have an odor by using the wafting method.
4) Determine whether each substance seems hard or soft. Do this by rubbing a small
sample of each between your fingers. Try to crush a few crystals of each. Place
each compound in the watch glass at a time and use a scoopula to crush them.
Melting Point
5) Light the burner. Place a small sample of substance A into a deflagrating spoon
and a small sample of substance D into the other. Record the one that melts first
as low and the other as high. You do not need to melt the higher one. Repeat
with substances B and E, C and F.
6) Repeat step 5 with your unknown.
Conductivity
7) Make a solution of each solid compound using distilled water in separate beakers. (Use the
same solid samples and add ______mL of DI water).
8) Test the conductivity of each solution, including your unknown.
Let’s build a conductivity tester so you can test substances to see how conductive they are!
What You Need:
3 alligator clip wires
An LED light bulb 60mA or a 12VDC buzzer
a 9V battery
What to Do:
1. Connect one wire to the negative (-) terminal of the battery.
2. Connect the other end of the wire to a wire on the LED (the black wire on the buzzer), making
sure the metal on the clip is grabbing the exposed metal of the wire.
3. Connect a second wire to the positive (+) terminal of the battery
4. Connect a third wire to the other wire on the LED (or the red wire on the buzzer), making sure
the metal on the clip is grabbing the exposed metal of the wire.
5. To test the circuit, touch the two empty alligator clips together. What happens?? (note as
observations).
6. Place a material between the two clips to test them. Or, you can immerse the two ends into
liquids to see how conductive liquids are.
7. In the space below, draw a picture of the conductivity tester you created.
Figure 1 creating a closed circuit
3. Names:____________________________________________________________________________
Date:___________________ Per:__________________
TITLE:___________________________________________________________________________________
Substance Type of Observations Melting Conductivity
bond Point (High or (yes or no)
Low) As a solid? In solution?
A. Sodium Chloride
NaCl
B. Potassium Iodide
KI
C. Baking soda
NaHCO3
D. Sugar
C12H22O11
E. Camphor
C10H16O
F. Acetylsalicylic
acid (Aspirin)
C9H8O4
G. Paper clip
H. Aluminum strips
I. Isopropyl alcohol
N/A
C3H8O
J. Vinegar
N/A
CH3COOH
K. De-ionized water
N/A
H2O
L. Tap water
N/A
H2O
M. Unknown
Post-Lab Questions:
1. Compare the physical properties of ionic and covalent substances.
2. What is the number of your unknown? Is it ionic or covalent? How do you know?
3. Intermolecular forces exist between molecules or ions. Based on this lab, which do you think are
stronger, intermolecular forces between covalent compounds or intermolecular forces between ions?
4. Which type of substance conducted electricity when dissolved in water? What is the difference between
ionic and covalent substances that causes this?
5. List the solids that were good conductors of electricity.
6. List the liquids that were good conductors of electricity.
7. Which solutions are electrolytes? List them in order from strong to weak.
8. Which liquids were nonconductors of electricity?
9. Why is de-ionized water not an electrolyte? What must be done to de-ionized water to conduct
electricity?
10. Based on what you know about electrical conduction explain why some of the substances did not
conduct electricity.
11. Compare the conductivity of solid NaCl and the solution of NaCl. Explain the difference.
12. Which type(s) of bonds resulted in electrical conduction and which type(s) of bonds did not. Explain
why ionic compounds (i.e., salts and bases) in the solid phase do not conduct an electric current, but in
the liquid state and in aqueous solution, these same compounds act as electrolytes.