 observation of the wet mouth of human cheek cells. How to take the specimen? We will take a toothpick and just for example, this is a toothpick and we are applying very gently from downward to upward inside the cheek wall and we will take the small amount of sample and we will be careful that the not the sharp end but the smooth end of the toothpick will be used for taking the sample. Materials we will require toothpicks, tips for taking the solutions we will require a pipette, methylene blue, water, slides, cover slips, oil immersion and forth placement patty dish. We have already taken a sample, first we will put the slide inside the patty dish and we will apply a small droplet of water by avoiding the air bubble then we will add a small droplet of methylene blue. The already taken sample, the cheek cells we will move around so that all the cheek cells will mix smoothly then we will put a cover slip very gently and avoiding the water bubble we will soak the extra stain by tissue paper and put all the bubbles so we will start visualizing the cheek cells first the magnification power will be 4x in a zigzag motion so that over the slide we will see the specimen under the first we are observing under the 4x and we will write our observation the human cheek cell basically is consist of a cell cytoplasm and there is a nucleus inside so the nucleus become more straight at the 4x we will just visualize a small patches of the cells now we will move towards the 10x in the same zigzag movement we will observe and we will record our observations now we will have a better view then we will turn towards the 40x in the zigzag observe the more clear view of the human cheek cell and record our observations now for the best view we will change the magnification power to the 100x on 100x we will apply some oil immersion more better view of the human cheek cell we will record our observations young scientists in this way we will complete our experiment and we will visualize how the epithelial wall of a cheek cell we can get different types of the epithelial cells and we will draw these cells and then classify how the visualization will be clear Thank you very much