Sand and water2Sugar and water3Oil and water4Sand and gravel5A mixture of heptane (boiling point 98 degrees Celsius) and heptanol (boiling point 176 degress celsius)6A mixture of iodine solid and sodium chloride 7A mixture of lead and aluminum pellets8A mixture of salt and iron filings
1) Drain the water from the sand Or heat the mixture, allowing the water to evaporate and catching the evaporate2) Sugar and waterHeat the mixture, allowing the water to evaporate (same as above) and the steam (iethe water) is collected and allowed to cool forming water once again, leaving the sugar3) Oil and water have different densities thats why u see oil on top of a puddle or if a tanker spills oil in the ocean the oil slick is on topSo to separate them u could skim the surface off the water4) sand and gravelHardmaybe cause gravel is bigger than sand u could use a screen with holes big enough to allow the sand through but not the gravel 5) heptane and heptanol use our old friend evaporation once againheat the heptane to boiling, collect the evaporate6) iodine solid and sodium chloridenot positive, but sodium chloride is just simple table salt, so u could dissolve the mixture in waterhopefully only the sodium chloride dissolves and the iodine remains solid 7) lead and aluminiumLead is much much heavier than aluminumActually i think aluminium might floatso put the mixture in waterthe lead will sink the aluminum will float 8) lol salt and iron filingsyour good friend the magnet can help u separate that mixture :)
