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Thursday 12 November 2020

Evaporation Experiment


Equipment: Copper sulfate solution, 250mL Beaker, heatproof mat, evaporating basin, element. 

Method: 

  1. Set up element

  2. Add 100mL of hot water to the beaker and place it on the element.

  3. Add copper sulfate to the evaporating basin until it is quarter full.

  4. Carefully, place the evaporating basin on top of the beaker. 

  5. Turn on the element to 3

  6. Heat the solution until most of the solvent has been evaporated and crystals of solute are forming. 

  7. Turn off the element- be careful not to touch, as it will be hot for a long time.


Observations: What did you see, hear, etc when doing the experiment. The

water was boiling because of the heat.


Conclusion: Was your hypothesis correct? Yes


Discussion: What happened and why: Steam gently heats the botttom of the evaporating dish and the crystal of the salute begins to form.


Evaluation: Did you enjoy the experiment? Why? It was fun seeing those expirement because I learned something new.








Thursday 5 November 2020

Filtration Experiment

Today we did a Filtration experiment for our science. The teacher explained to us what to do with the experiment and she showed us the equipment that were gonna use for expirement. 

So we pour a 50ml of copper sulfate solution into a breaker and we add the same volume of sodium carbonate solution. A reaction will hapen, you should see a cloudy blue precitipate form. called copper carbonate.


Hypothesis

Solvent-Liquid used in solution does the dissolving

Solute-Thing dissolved into solution (solid)

Solution a mixture of two or substances.


Solubility-Ability to dissolved- can=soluble, Can't=insolube.

Filter-Separates particles based on size (doesn't liquids)

Filtrate-Liquid left after filtering.

Blue-Copper sulfate 

Clear-Sodium carbonate 

Aim: Separate a minute we have made using filtration.

Copper sulfate+sodium carbonate-copper carbonate+sodium sulfate.