Topic 3: Trying out laboratory equipment

Aim or purpose:

1. Measure and exact amount of sugar and dissolve in water to make a solution

Equipment

• A weighing machine or pair of scales
• A petri dish
• Table sugar
• Two 200ml beakers
• Water in a pouring container
• A pipette (or dropper)
• Spatula

Method:

Cold Water Experiment:

• First pour 100ml of cold water into the beaker
• Next use a thermometer and see the temperature of the water
• After that get 10 grams of sugar and put it on a petri dish
• Place the petri dish and put it on a weighing machine
• After that put the 10 grams of sugar and put in the beaker
• Next stir the sugar and water together
• By using a stopwatch I timed my partner and see how long it took for the sugar to dissolve in the water

Results:

Temperature - 24 degrees celsius

Time - 1 minute 31 seconds

Hot Water Experiment:
     -     First pour 100ml of hot water into the beaker

• Next use a thermometer and see the temperature of the water
• After that get 10 grams of sugar and put it on a petri dish
• Place the petri dish and put it on a weighing machine
• After that put the 10 grams of sugar and put it in the beaker                                                  
• Next stir the sugar and water together
• By using a stopwatch I timed my partner and see how it took for the sugar to dissolve in the water

Results:

Temperature - 83 degrees celsius

Time - 35 seconds