CBSE Class 8th Science Term-01 Study Links


Class 8th Science Term-01
1. Crops Production and Management
2. Microorganisms-Friend and Foe
3. Force and Pressure
4. Frictions
5. Chemical Effects of Electric Current
6.  Sound, Wave, Music and Noise
7. Synthetic Fibre and Plastics
8. Metals and Non-Metals
9. Conservation   of Plants and Animals Conservation
Class VIII Mathematics [Click on links given below]
VIII Algebra
VIII Commercial Maths
VIII Geometry & Mensuration 
CBSE Class VIII Science
Physics
Chemistry
Biology
8th Sample paper
8th Social Science

Comments

Post a Comment

Popular Post

Obtaining and Utilization Food Class 7 Science Solved question (Basic Science Questions answers)

Image
A. Answer these questions 1. Name the three life process help living being to procure energy from food? Answer: Three life processes that help living organisms to procure energy from food are: (i) Digestion (Nutrition) (ii) Respiration (iii) Transportation 2. What are Autotrophs? Name an organism other than other than green plant that is an autotroph. Answer: Autotrophs are organisms that can prepare their own food. Chlamydomonas is a type of green algae which is an example of an autotroph, other than green plants. Cyanobacteria are also an example of autotroph. 3. Name three type of heterotrophic nutrition Answer: Three types of heterotrophic nutrition are: (i) Saprophytic nutrition (ii) Parasitic nutrition (iii) Holozoic nutrition 4. What are enzymes? Answer: Enzymes are chemical substances that act as biological catalysts and are important for carrying out biochemical processes, such as digestion, in our body ...
Read more

8th Class Cell structure and function solved questions(Biology)

Image
Q  Name the cells having branches structure. Ans Nerve Cell. Q Why cells could not be observed before seventeenth century? Ans Cells could not be observed before seventeenth century because till that time microscope was not invented. Q Why plant cell have cell wall? Ans Plant cells need protection against variations in temperature, high wind speed, atmospheric moisture, etc. They are exposed to these variations because they cannot move. That's why they have cell wall. Q Which organism has the smallest cell? Ans  Mycoplasmas, a bacteria has the smallest cell of the size of 0.1 micron i.e. ten thousandth part of a mill metre. ' Q  Which is the largest cell visible by unaided eye? Ans Ostrich egg has the largest visible cell by unaided eye. Q Name the four elements, which fonn major part of protoplasm. Ans These are carbon, hydrogen, oxygen and nitrogen. Q Give two examples of prokaryotes. Ans Bacteria and blue green algae. Q  Name the la...
Read more

Class9 Biology chapter Cell the Fundamental unit of life :Assignment solved

Image
1. What is plasma membrane? What are their functions? Ans: Plasma membrane also called as cell membrane, is the outer covering of a cell that separates the cell contents (protoplasm) from the surrounding medium. It is made up of proteins and lipids. It gives form (shape and size) to the cell It maintains the individuality of the cell (i.e. seperates cells) It keeps the cell contents in place 2. What are cell organelles ? Ans: The certain specific living parts of a cell with a definite function are celled Cell organelles. All cell are found to have same organelles and together these constitute to the basic unit of life. 3. What is cellulose and its functions? Ans: Cellulose is the main component of a plant cell wall. It is responsible for giving structural shape to the cell and also to protect the protoplasm. 4.  What is a Prokaryotic cell? Give an Example. Ans: The cells that do not hav...
Read more

IX Biology:Extra marks Guess Solved Question paper : Cell and its Function

Image
IX The Cell & Fundamental Unit of life Question :    Why is the cell known the 'fundamental and structural unit of life ' Ans: ell is called as the structural and functional unit of the living organism because it the smallest living entity that is capable of an independent existence. Separated cell organelles cannot be said to be living and are not capable of independent existence. Question :  what is a semi permeable membrane? what are the differences between semi permeable membrane and selectively permeable membrane? Ans: a semi permeable membrane is a membrane that allows only the entry of substances that are helpful for the body. a semi permeable membrane is also called a selectively permeable membrane. Question :     Which cell in the human body does not have the mitochondria? Ans: Mature erythrocytes don't have mitochondria Question :   What are plastids? Write their functions? Ans: Plastids are double membrane organelle...
Read more