Testing for Protein - The Biuret Test

Testing for Protein - The Biuret Test

Aim: to test if a sample of food contains protein

Method:
1. Place about 2 ml of the sample into a test tube and add 5 drops of sodium hydroxide.
2. Add 5 drops of copper sulphate.
3. shake the test tube.

Results: If the solution remains blue, then no protein is present. If the solution changes to a purple colour then protein is present in the sample

Conclusion: if food sample has protein in it should turn purple is not it will stay blue.

The Benedicts test

Aim: To test a sample of food the determine whether it contains simple sugars

Equipment: Bunsen burner, test tube tongs, Benedict's solution, a sample of food

Method:

1. Place about 2 ml of the sample into a test tube then add 5 drops of Benedict's solution.
2. Heat with a bunsen until it changes colour. Do not boil

Results: A positive test for simple sugar results in the Benedicts Solution changing from a blue colour to an orange colour. No colour change is a negative result.

Conclusion the Benedicts solutuion changes colour the the sample is simple sugar

Hunt for the Wilderpeople essay

Since the start of term 2, we have been doing an essay on Hunt for the Wildepeople which is worrying because it's my first essay. For the essay, we had to pick 3 aspects of the film to write a paragraph about and the three that I chose are dialogue, camera shots and flashbacks. For the dialogue I was focusing on how Ricky was shy then as the film went on he got less shy. For the flashbacks, I am focusing on how it shows us what Ricky is capable of doing for example littering, lighting fires and tagging. For the camera shots, I'm writing about how when Uncle Hec and aunty Bella pull their knives out they get an extreme close up on the knife when they pull their knives out. That is what I'm doing my essay about.

S.E.E.L Paragraph About Human Rights

Human rights include civil and political rights such as the right to life and liberty, freedom of expression, equality before the law and the right to be free from discrimination.

Human rights also guarantee people the means necessary to satisfy their basic needs, such as food, housing, and education. By guaranteeing life, liberty, equality, and security, human rights protect people against abuse by those who are more powerful.

The First Amendment is perhaps the most important part of the Bill of Rights. It protects five of the most basic liberties. They are freedom of religion, freedom of speech, freedom of the press, freedom of assembly, and freedom to petition the government to right wrongs.

The Declaration of the Rights of Man and of the Citizen of 1789 is a fundamental document of the French Revolution and in the history of human rights.

The Dropping Pins Experiment

Aim: To observe conduction along a metal rod

1. Set up and light a Bunsen Burner
2. Smear a small amount of petroleum jelly on to the head of each drawing pin
3. Attach the drawing pins at even intervals along the length of metal rod
4. Clamp one end of the metal rod to a retort stands
5. Position the retort stand so the unclamped end of the metal rod is in the Bunsen flame and start the stopwatch
6. Record the time it takes for each pin to drop on the table below

Explanation: The heat was transfering down the rod which made the pins vibrate thne they fell off when the heat became to much and that traveled down the line 

Results:

Pin Number	Time to drop (s)
1	12
2	27
3	50
4	1:49

Last six weeks of DTE

6 Weeks Of Digital Tech

6 Weeks Of Digital Tech

February the 1st Monday it was the start of school period 4 it was the first day of digital tech we started off by making a web site and soon after we wore to make an infographic about ergonomics. later that week we played a game called Interland and we need to find the hidden message and write about it on web site we made. The following week we made another infographic about Cyber smart and 3 weeks later we made a thing on digital bites...

Picktochart

Interland   Online game


Interlands different islands

Venngage

Venngage













Have you ever played Interland and if so was it fun?...

Purple Water Experiment

Aim: To make a dilution series to investigate.

Method: To place 6 test tubes in a test tube rack 1-6
- Using the measuring cylinder, fill test tube 1 with 10 mL of water. Using the  5 remaining test tubes with 5 mL of water.
- Using tweezers, add a single crystal of potassium permanganate to a test tube.
- Gently shake the test tube to the potassium permanganate has dissolved.
- Rinse the transfer pipette thoroughly to the purple solution is gone
- Gently shake test tube 2 and repeat the process, transfer exactly 5 mL of the solution from test tube 2 to 3
- Rinse the transfer pipette thoroughly again and repeat the transfer process for test tube 4, 5 and 6.

The results: First we added the solute which was potassium pomegranate into the test tube the water started turning purple then all the water went purple. Once that happened we to 5ml out of the first one which had 10ml in it with a pipette then transferred it into another test tube that had 5ml in it then we repeated that with our other test tubes. While we were doing that the other one got lighter purple.