Periwinkle General Science Std. 4Jeevandeep Prakashan Pvt Ltd |
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Answer the following baby bacteria beaker body boiled bracket and fill breeze called carbon dioxide causes cells Chapati chlorophyll clothes colour container cooked cool cubic centimetre density different kinds digestion diseases dissolved earth energy environment evaporates Exercise Q.1 fish Flowing water food preservation food substances force fungi gases give Green plants grow heat Hence humus impurities incisors insects insoluble iodine joss stick juice layers leaf leaves lesson Let us revise light liquid living things machine man-made mass matter microbes milk minerals molecules mouth natural natural satellite non-living things notebook observe organisms oxygen parents particles Pascal's Law permanent teeth photosynthesis premolars pressure produce proteins Protozoa roots rotation salt satellites small intestine soil erosion solar system solid solvent space starch stars stomata stored sugar sunlight swimming Take teeth telescopes temperature tiny top soil types vitamins wash water vapour wind words given write the correct