magnesium oxide , compound , mixture , Element, mineral water , Compound, Element, None of this, Water, Compound, mixture , Element, Steel, compound , mixture , Element , bronze , element , mixture , compound , Duraluimin , Element, mixture , compound , Iron sulphide, compound , Mixture, Element, Ammunia, Element, mixture , Compound, Air, Mixture, compound , 3 examples for compound, Water, carbon dioxide, ammunia, Milk, mineral, air, Define mixture, Consist of 2 or more element which aren't joined together , Consist only of 1 element, Obtain calk from a suspension of chalk and water , Evaporation, Filtiration , Obtain pure water from sea water, Filtiration, Evaporation, Chramotoghraphy, Distillation, identify the colour's pigment in flower , Crystlistion , Chramotography, Obtain salt from sea water, Filtiration , Distillation, Evaporation, The substance left behind in the filter paper is called , Residue, Filtirate, The pure liquid obtained from distillation is called , Crystal , Distillate, What is the simplest kind of matter , Compound , Element, Who clasfied the periodic table , Able magawith, Mendeleev, The % of iron in the composition by mass of the earth crust, 25%, 5%, Causes adicttion, Nicotine, Tar, Carcinogens, Kills cells in the air passage in the lungs , Irritants, Nicotine, Tar, Carcinogens, Carbon monoxide, For normal vision , Vaitamin d, Vaitamin a, For clotting of blood, Vaitamin k, Vaitamin c, A person suffers from rickets, Vitamin d is needed, Vitamin c is needed , Water makes about ______________ of our body weigth, 50 %, 70% , What is the correct equation for respiration , Carbon dioxide + water in the presence of light from sun trapped by chlorophyll =glocuse + oxygen , glocuse + oxygen - - - - - - - Energy +carbon dioxide + water, Define respiration , Is breaking down glocuse and oxygen in the presence of energy into carbon dioxide and water , Is the process by which plants make food using carbon dioxide, water and light energy from the sun , Is this inhaled air or exhaled air 1 - has more carbon dioxide and water 2- has less oxygen 3- high temperature , Inhaled air, Exhaled air, The unit used for force is, Newton, Pascal, Joule, Kilo trouble , Watt, Kilojoule, An object is said to have_____________ if the gravitational force acts on it , Volume, Kent , Mass, density , Weight, A _______________ can be used to musure force, Beam balance, Spring balsnce, Formula of work done , W =f ×d, W = d/f.

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