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Thursday, February 20, 2020

Science

Aim:to find complex simple and complex sugars

Hypothesis: i think that most of the food is going to change but not all of them are

Method:
put iodine in a test tube and put the food in the test tube and then the food with the liquid

Potato: complex

Apple: complex

Bread: complex

Egg: simple

Sugar:simple

Second test:

Aim: Testing foods to see if there simple or complex

Equipment: water bath, test long tubes, benedicts solution, a sample of food

Method: place about 2ML of the sample into a test tube and then add 5 drops of benedicts solution.
heat with water bath until it changes colour

Results:

Milk: positive

Bread: positive

Egg: not positive

suga: Positive

potato: positive

apple: positive

3 test

Equipment: test tube, sodium hydroxide (NaOh), Copper sulfate (CusO), food sample

Method:place about 2mL of the sample into the test tube and 5 drops of sodium hydroxide (NaOh)
add 5 drops on copper sulfate shake the test tube gently from side to side

results:
potato: neg
apple: neg
Milk: positive
bread: neg
suga: neg
egg: positive

Conclusion:
No everythign turnt out how i thought it would but i guess thats life

Anyway welcome to my first 2020 blog of being a year 9

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