Ghani Practical https://validator.w3.org/feed/docs/rss2.html Home Data collection on the number of stomata per unit area on various plant leaves that grow in areas of differing humidity and compilation of data and graph it to determine whether there is a relationship between the variables Determination of the effect of tonicity on plasmolysis and deplasmolysis in plant cells or in red blood cell Preparation of the wet mounts of tissue from flowering plants and study of plant and animal tissues from charts and prepared slides Identification of different parts of the cell from fresh preparations Microscopic examination of an animal cell Use of microscope to observe the movement of small objects Evaluation of graphs of a population of an insect (endangered due to excessive use of insecticides and interpret the reasons for its endangered status Recognition of different animals and plants from fresh and preserved specimens on the basis of apparent distinguishing taxonomic characters Blog Chemistry 9th & 10th (FB) Introduction to Volumetric Analysis Investigation about the role of yeast and bacteria in the fermentation of flour and milk Recording the heights of class fellows to predict which kind of variation is it and presentation of the data of class fellows height in graphical form Investigation of the conditions for seed germination Examination of mustard flower, gram seed and maize grain Propagation by stem cutting (rose or any locally available plant) and bryophyllum leaf Examination of a bulb (onion), corm (Colocasia), rhizome (ginger) and stem tuber (potato) and their cultivation to get new plants Observation of budding in yeast from prepared slides Observation of binary fission in Amoeba by using slides, photomicrographs and charts Investigation of the nature of bone (by putting three places of the bone of lamb in water, NaOH and dilute HCl) Identify the different parts and draw a labeled diagram of longitudinal section of eye of a sheep or a bull Experiment to observe the contraction in the shin muscle of frog in a petri dish filled with methlylene blue and using 12V. DC current Observation and recording of the difference in quickness of response of the two types of co-ordination Examination of the structure of the kidney (Sheep kidney/model). Demonstration of the presence of tar in cigarette smoke and also showing by charts and pictures the difference of lungs of smokers and non-smokers Demonstration of the presence of carbon dioxide in the exhaled air Experiment to find out how much air a person can take into his/her lungs Activity to compare the breathing rate at rest and after exercise To investigate the pathway of water in parts of plant using a suitable stain and compare sizes of various types of cells To investigate the necessity of chlorophyll, light and carbon dioxide for photocynthesis Experiment to show the capillary flow in a fish tail or fin or frog’s web To investigate the effect of physical activity on pulse rate Identification of red and white blood cells under the light microscope on prepared slides and in diagrams and photomicrographs Identification of xylem and phloem tissues in the prepared slides of stem, root and leaf To investigate transpiration in potted plant under a bell jar To investigate the rate of water loss at the two surfaces of a leaf by using cobalt chloride paper Microscopic observations of the structure and number of stomata in the epidermal peel of a leaf Observation of root hairs on growing root of onion, carrot etc Measurement of differences in length/weight of raw potato strips in concentrated salt solution and water Microscope examination of a transverse section of the small intestine to show the villli Food test: Benddict’s test for reducing sugar, iodine test for starch, spot test and emulsion test for fat, and Biuret test for protein in solution To investigate the release of carbon dioxide and heat during aerobic respiration in germinating seeds To demonstrate the process of respiration in germinating seeds by using limewater Identification and labeling of the cellular and tissue structure in the CS of a leaf through observation under the microscopic To demonstrate the process of photosynthesis using aquatic plant, Hydrilla Experiment test enzyme action by putting diastase in a starch solution in test tube at 37°C and after fifteen minutes performing iodine test for presence of starch To demonstrate working of an enzymes in vitro e.g. pepsin working on meat in test tube Preparation of root tip squashes and study stages of mitosis Observation of various stages of mitosis and meiosis by slides, model and charts Investigation of an ecosystem e.g. an aquarium or a pond