Distillation

On Tuesday we did a distillation activity and this is my report.
Our aim is to Distill the water out of the Coke.

Equipment:

• Bunsen  Burner 
• Tripod
• Heat proof mat
• Gauze mat
• Conical flask
• Test tube 
• Beaker
• Delivery tube
• Retort stand

Ingredients: 

• ice
• Coke

Method:

• Set up all of the equipment as shown in the diagram

• Add approximately 50mL of Coke into your conical flask. 
• Light your Bunsen burner and gently push it underneath the tripod with the conical flask on it.
• As it is heating up and the solvent is evaporating make your you have the beaker with the ice in it at the end of the beaker so then the water vapor cools down and turned back into a liquid. 
• Heat your solution until most of the solvent has been evaporated from the Coke And then turn off the Bunsen burner. 

Results:

We boiled the Coke and the water evaporated from the coke and then flowed down the Delivery tube and it cooled into water. A lot of the water was distilled form the Coke.

Discussion: 

Distillation is a way of getting a liquid that has a lower boiling point separated from another liquid with a higher boiling point. When we did this we were getting water and we were separating it from the Coke. 

The two processes are evaporation , That happens when a liquid (water) is heated up to boiling level and it creates water vapor.  Condensation is the last one that occurs when all of the water vapor builds up on the side of the glass or on the container you are using. Distillation is used to separate different chemicals that have been mixed together by evaporating the chemical with the lower boiling point.

Is there anything else you would like to know about this experiment? 

Sugar Crystals

Yesterday in science we started the process of making sugar crystals.  We all got into groups of about three or four and all worked together.

Our aim is to make the crystals from a super saturated solution.

Ingredience:

• Sugar 250g
• Hot water 50mL
• Food colouring

Equipment:

• Buncen burner
• Popsicle stick
• Beaker
• Gauze mat
• heating mat
• tri-pod
• stirring rod

Method:

1. add approximately 50mL of water into a beaker and heat it up until boiling over the Bunsen burner. 
2. Once it has started boiling turn hoof the Bunsen burner, slowly start adding the sugar into the boiling water (bit by bit) and mix it until it has dissolved. 
3. Once it is all dissolved it should be clear but it should have a Light yellow tinge to it. If you water is still a little cloudy you can turn the Bunsen burner back on and heat the water to help the sugar dissolve. 
4. Once it is ready you can add the food coloring and flavor (optional) 
5. Then with your Popsicle stick you wet the end of it and then cover it in sugar. (water is there to help it grow and stick to the stick) 
6. Put the Popsicle stick into a different cup with nothing else in it
7. Pour the colored water you were preparing earlier into the cup with the Popsicle stick and then place it over by a window.
8. Then wait for the crystal to grow. ( might take a few weeks) 

Results:

Discussion:
Making crystals can separate a solid from a liquid. However a highly concentrated solution was needed (Saturated solution) in order to grow crystals. Crystallization Is a good way of getting the solid (sugar) out of the water. But the water will still have some sugar in it just not as much as the starting product. 

Scones Home economics

Last week for home economics we were making Scones.The first thing we did was got all of the dry ingredient's and put them all into a medium size bowl. Then we sifted all of the ingredient's to then it is all broken up and so then there are no unmixed ingredient's in the scones. We finely cut butter into the mixture until it resembled bread crumbs. Slowly added milk into the mixture and mixed it with a knife and our hands until lit formed a nice dough for the scones. We rolled the scones into small balls and then we placed them on the trey with baking paper and then we slowly covered them with a thin layer of milk. we baked it at 180c for 10 minutes (until it is golden brown) We let them cool and then we were to take them off the try and take them home (or eat them there). 

Potassium Permanganate Crystal

In science this week we have been working on dilution and concentration.  We were diluting the water along along a path of six test tubes and boiling tubes next to each other. We started off but putting a Potassium Permanganate Crystal into the first test tube with 10mLs of water and then we used a pipette and then we got about 5mLs of water from the first test tube and put it into the next test tube with 5mLs of clear water and we saw how much it diluted as we got further and further down the chain.  We figured out that the further down the chain the water got the more diluted it became, and by the time it was at the sixth dilution there was a tiny bit of the Potassium Permanganate Crystal shards left in the water but there was very minimal colour in the water. 

Method: 

• Place the six test tubes in a tube rack. Label the rack with numbers 1-6
• Using the measuring cylinder, fill the test tube one with 10 mL of water. Fill the remaining test tubes with 5 mL of water
• Using your tweezers, add a single crystal of Potassium Permanganate to test tube one
• Gently shake the test tube until the crystal has dissolved
• Using the transfer pipette, carefully remove exactly 5 mLs of water from test tube one and pour it into test tube two
• Rinse the transfer pipette thoroughly to ensure that no purple solution remains 
• Gently shake test tube two and repeat the transfer process, transferring exactly 5mL of solution from test tube two and put it into test tube three
• Rinse the pipette again and repeat the transfer process for the tubes 4,5,6. 

Dilution definition: A dilute solution contains a small amount of solute. At home, if you were to make a 'weak' coffee, in scientific terms you are making a dilute solution of coffee. This means that there is a little amount of solute in your liquid you are mixing it with

Concentration definition: A concentrated solution contains a large amount of solute. At home if you make a 'Strong' coffee, in scientific terms you are making a concentrated solution of coffee. This means there is a large amount of solute in the liquid you are mixing it with. 

Thank you for reading my blog post. is there anything else you would like to know about the experiment?