Experimenting - 18 March 2013

18/03/2013 - Experimenting

Part 1 : Water and Salt Water 

step 1 : mixing salt with water

 step 2 : preparing water

step 3 : colouring water red and salt water orange-yellow

step 4 :  adding salt water and water

step 5 : leave the solution to rest for 1 hour. however, the solution doesn't separate hence, salt water and water are miscible liquids

Part 2 : Water and Oil 

step 1 : water is coloured brown and oil is poured in

step 2 : water is denser than oil as water is at the bottom 

Part 3 : Soya Sauce and Oil 

step 1 : pour soya sauce into oil

step 2 : oil is less dense than soya sauce as it 'floats' on soya sauce

 Part 4 : Soap and water

step 1 : Water is coloured orange, soap is then poured in

step 2 : water and soap separates after a short period of time. soap is denser than water

Part 5 : Densities of objects with oil and water

step 1 :prepare oil and water

 step 2 : place objects into water and oil

step 3 : items such as rubber band (red strip) peanut shells (nuts) and paper clips are put in. Peanut shells are the least dense as they float on oil, followed by rubber bands that sink in oil but float in water and finally paper clips that sink in water

Part 6 : Oil, Water and Cough Syrup

step 1 : pour oil water and cough syrup

step 2 : oil is the least dense followed by water then at the bottom cough syrup

 Part 7 : Soap and Soya Sauce

step 1 : pour soap and soya sauce, soap is less dense than soya sauce