Read and download NCERT Class 9 Science Lab Manual Materials in NCERT book for Class 9 Science. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Science textbook for Class 9 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 9 Science to understand the answers of the exercise questions given at the end of this chapter
NCERT Book for Class 9 Science Lab Manual Materials
Class 9 Science students should refer to the following NCERT Book Lab Manual Materials in Class 9. This NCERT Book for Class 9 Science will be very useful for exams and help you to score good marks
Lab Manual Materials NCERT Book Class 9
Materials
AIM
To study the different parts of a simple (dissecting) microscope.
THEORY
The human eye cannot distinguish objects smaller than 0.1 mm. Hence, we cannot observe cells, tissues, and minute organisms through naked eyes. Before the invention of microscope, biologists used lenses that could magnify minute objects only up to some extent. Subsequently scientists started using combination of lenses that led to the invention of microscope. Microscopes are instruments designed to produce magnified visuals of smaller objects.
The simple microscope, also known as dissecting microscope, has a single lens system through which the image of an object is seen. The simple microscope is infact a magnifying lens mounted on a metallic frame in such a way that lens can be mechanically moved up and down or sideways to get a magnified view of the object under observation. Its principle is not different from an ordinary lens used by a watch repairer.
MATERIALS REQUIRED
A simple (dissecting) microscope, permanent slides of plant (or animal) materials, parts of plants (or small insects), a slide, forceps, and a needle.
DESCRIPTION
A simple (dissecting) microscope (Fig. 1.1) consists of the following parts.
1. Base – It is the basal part that is bifurcated and supports the weight of the microscope. It is generally horse-shoe shaped and is made of metal.
2. Stand – It is a short, hollow cylindrical rod fixed to the base. Another small cylindrical rod called vertical limb fits into the stand, at the other end. The vertical limb can be moved up and down, with the help of an adjustment knob attached to the upper end of the stand.
PROCEDURE
1. Clean the stage, lens and mirror with a soft and dry cloth or with a tissue paper.
2. Place a permanent slide or a slide with an object mounted on it on the stage.
3. Adjust the mirror to get maximum (reflected) light on to the object.
4. Align the microscope lens over the object under observation.
5. Rotate the adjustment knob to bring the object to clear focus.
PRECAUTIONS
• Keep the microscope in its box after use.
• Clean the lens and mirror with a lens cleaning solution. Always wipe the lens and mirror with a piece of silk cloth.
• Always carry the microscope in an upright position. Use both your hands to hold it.
• Clean the stage properly before placing the slide.
• Take care to prevent the microscope lens coming in contact with the slide or an object.
QUESTIONS
• What is the magnification of the simple microscope you have used?
• Why is a simple microscope also called a dissecting microscope?
• Which type of mirror is fitted in the simple microscope? What is its function?
Please refer to attached file for NCERT Class 9 Science Lab Manual Materials
| NCERT Class 9 Science Matter In Our Surroundings |
| NCERT Class 9 Science Matter In Our Surroundings Questions |
| NCERT Class 9 Science Is Matter Around Us Pure |
| NCERT Class 9 Science Is Matter Around Us Pure Questions |
| NCERT Class 9 Science Atoms And Molecules |
| NCERT Class 9 Science Atoms And Molecules Questions |
| NCERT Class 9 Science Structure Of The Atom |
| NCERT Class 9 Science Structure Of The Atom Questions |
| NCERT Class 9 Science The Fundamental Unit Of Life |
| NCERT Class 9 Science The Fundamental Unit Of Life Questions |
| NCERT Class 9 Science Tissues |
| NCERT Class 9 Science Tissues Questions |
| NCERT Class 9 Science Diversity In Living Organisms |
| NCERT Class 9 Science Diversity In Living Organisms Questions |
| NCERT Class 9 Science Motion |
| NCERT Class 9 Science Motion Questions |
| NCERT Class 9 Science Force And Laws Of Motion |
| NCERT Class 9 Science Force And Laws Of Motion Questions |
| NCERT Class 9 Science Gravitation |
| NCERT Class 9 Science Gravitation Questions |
| NCERT Class 9 Science Work And Energy |
| NCERT Class 9 Science Work And Energy Questions |
| NCERT Class 9 Science Sound |
| NCERT Class 9 Science Sound Questions |
| NCERT Class 9 Science Why Do We Fall Ill |
| NCERT Class 9 Science Why Do We Fall Ill Questions |
| NCERT Class 9 Science Natural Resources |
| NCERT Class 9 Science Natural Resources Questions |
| NCERT Class 9 Science Improvement In Food Resources |
| NCERT Class 9 Science Improvement In Food Resources Questions |
| NCERT Class 9 Science Solutions and Answers |
Science NCERT Book Class 9 Lab Manual Materials
The above NCERT Books for Class 9 Science Lab Manual Materials have been published by NCERT for latest academic session. The textbook by NCERT for Lab Manual Materials Science Class 9 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Lab Manual Materials NCERT etextbooks as the exams for Class 9 Science are always asked as per the syllabus defined in these ebooks. These Class 9 Lab Manual Materials book for Science also includes collection of question. We have also provided NCERT solutions for Class 9 Science which have been developed by teachers of StudiesToday.com after thorough review of the latest book and based on pattern of questions in upcoming exams for Class 9 students.
NCERT Book Class 9 Science Lab Manual Materials
The latest NCERT book for Lab Manual Materials pdf have been published by NCERT based on the latest research done for each topic which has to be taught to students in all classes. The books for Class 9 Science Lab Manual Materials are designed to enhance the overall understanding of students. All Class 9 NCERT textbooks have been written in an easy to understand language which will help to enhance the overall level of Class 9 students.
Lab Manual Materials NCERT Book Class 9 Science
As the students of Class 9 need the books for their regular studies, we have provided all NCERT book for Lab Manual Materials in pdf here for free download. All pdf NCERT books available here for Class 9 will help them to read on their mobile or computers. They can take a print of the Class 9 Science NCERT Book Lab Manual Materials pdf easily and use them for studies. The NCERT textbooks for Class 9 Science have been provided chapter-wise and can be downloaded for free of cost.
Class 9 Science Lab Manual Materials NCERT Book
Along with Science Class 9 NCERT Book in Pdf for Lab Manual Materials we have provided all NCERT Books in English Medium for Class 9 which will be really helpful for students who have opted for english language as a medium. Class 9 students will need their books in English so we have provided them here for all subjects in Class 9.
Class 9 Lab Manual Materials NCERT Book Science
For Class 9 Lab Manual Materials we have provided books for students who have opted for Hindi and Urdu medium too. You can click on the links provided above to download all Hindi medium Class 9 Science Lab Manual Materials book in easy to read pdf format. These books will help Class 9 Science students to understand all topics and also strictly follow latest syllabus for their studies. If you are looking to download the pdf version of Class 9 Science Lab Manual Materials textbook issued by NCERT then you have come to the correct website
You can download the NCERT Book for Class 9 Science Lab Manual Materials for latest session from StudiesToday.com
Yes, you can click on the link above and download chapter wise NCERT Books in PDFs for Class 9 for Science Lab Manual Materials
Yes, the NCERT Book issued for Class 9 Science Lab Manual Materials have been made available here for latest academic session
You can easily access the link above and download the Class 9 NCERT Books Science Lab Manual Materials for each chapter
There is no charge for the NCERT Book for Class 9 Science Lab Manual Materials you can download everything free
Regular revision of NCERT Books given on studiestoday for Class 9 subject Science Lab Manual Materials can help you to score better marks in exams