1) What are the states of matter? a) . solid and gas b) solid and liquid c) solid, liquid and gas d) solid, liquid and juice 2) How do gases move? a) They flow into any container. b) They keep their shape and are rigid. c) They vibrate and move freely at high speeds. d) They are very far from each other 3) Liquids have ………… a) No definite shape or volume b) Definite shape and volume c) . Definite shape but no definite volume d) . No definite shape but a definite volume 4) What happens to solid when mix with other solids? a) They retained their properties. b) The properties of each solid material in the mixture do not change c) . The size, shape, color of each material remain the same even after mixing them. d) Their possess all the above properties . 5) What happens when liquids are mix with liquids? a) Some liquids are suspended. b) Some liquids dissolve completely with each other. c) Some liquids do not dissolve completely with each other. d) All of the above   6) Evaporation is a change of state from ________________ to ______________ . a) gas, solid b) . liquid , gas c) gas, liquid d) solid, liquid 7) When salt dissolve in water, the two substances appear as one. The salt particles can no longer be  a) gas in liquid b) liquid in liquid c) solid in solid d) solid in liquid 8) Which of these is the right word for the process of turning a solid into a liquid a) Boiling b) Condensing c) Evaporating d) Melting 9) Which of the following best describes a mixture? a) . a chemically combined substances b) two or more substances that cannot be separated. c) physically combination of two or more substances in which identities are retained. d) . All of the above 10) A mixture where one substance dissolves in another is called a) pure b) solute c) Solution d) Suspension 11) Heterogenous mixture a) include solutions b) do not have the components distributed evenly throughout c) have components evenly distributed all the way down to the particles d) have components so small that they cannot be seen with the naked eye 12) Which of these mixtures is heterogenous a) Sand-water b) sugar-water c) vinegar-water d) soy sauce-water 13) Homogenous mixtures are also called a) element b) solutions c) compound d) Uniform Mixtures 14) Which of the following is an example of a solution? a) oil and water b) sand and rocks c) salt and pepper d) sugar and vinegar 15) Which of these will not dissolve in water a) detergent b) gravel c) salt d) sugar 16) Which substances are soluble in water? a) Oil in water b) soil in water c) pepper in vinegar d) detergent powder in water 17) Liquids that do not mix are said to be… a) flammable b) immiscible c) miscible d) soluble 18) Which one of the following solids is insoluble in water? a) salt b) sand c) sugar d) copper sulphate 19) What colloids can do? a) scatter light b) evolve heat c) absorb heat d) not scatter light 20) Which of the following mixtures can be separated by handpicking? a) sliced fruits b) muddy water c) nails and water d) vinegar and oil 21) Which of the following is a mixture between a liquid and a solid where the solid does not dissolve? a) alloy b) colloid c) solution d) suspension 22) What is one property of a suspension that is different from that of a solution or a colloid? a) Suspensions are colorless. b) A suspension is always clear. c) The particles of a suspension reflect light. d) If left to rest, the particles of a suspension will settle at the bottom. 23) Jonathan wants to separate insects and other unwanted materials in his mixtures of Grains and corn What technique of separating mixture is appropriate? a) Filtration b) Hand picking c) Magnetism d) Winnowing 24) Which of the following techniques would best be used to separate soil and water? a) Decanting b) Evaporation c) Filtration d) Winnowing 25) To separate rocks into different sized particles for road building and other construction projects, Which method is Applicable? a) Decanting b) Picking c) Sieving/Sifting d) Winnowing 26) What is the separation technique shown in the diagram? a) Decanting b) Distillation c) Evaporation d) Filtration 27) The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as a) Decanting b) Evaporation c) Filtration d) Winnowing 28) Where does the liquid go during the evaporation process? a) up b) middle  c) inside the salt d) below the ground 29) Which one of the following would you use to separate sand from iron fillings? a) a bar magnet b) alum c) chromatography paper d) filter paper 30) Solid particles which are left on filter paper in filtration process is called a) filtrate b) residue c) solute d) solvent

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