Acids Bases and Indicators

Acids, Bases and Indicators

Aim: To investigate how indicators change colour in acids and bases.

Method:

1. Set up your spotting tile with two drops of acids in the first row of four, two drops of water in the middle row of four and then 2 drops of base in the last row of four.

2. In the first row of three put a small piece of red litmus paper (tear your strip into three for this), in the second row put a small piece of blue litmus paper, in the third row a small piece of universal litmus paper and in the fourth a drop of universal indicator.

3 Take a photo of your spotting tile and insert it here:

Conclusion:

Acids always turn/stay red. Bases always turn/stay red. Neutral always stay the same

Making table salt

Making Table Salt

Aim: To make sodium chloride crystals by neutralizing an acid with a base (alkali)

Method:
1. Measure 10ml of hydrochloric acid (HCl) in the small measuring cylinder and pour into a 50ml beaker.

2. Add dilute sodium hydroxide (NaOH) to the acid a few drops at a time while stirring with a glass stirring rod.

3. Use the glass stirring rod to transfer a drop of the solution to a spotting tile. Add a drop of universal indicator. Is it neutral? (green)

4. Once it is neutralised (pH = 7 - green) pour the liquid into an evaporating dish and heat till it boils slowly.


Observations: Write one observation for each step of the method.
1. The acid was really strong so we had to use ten mills of base, and add 5 drops of acid.

2. The water evaporated really fast, but the water in the evaporating dish was still there.
3. After we were left with a white substance on the bottom of our evaporating dish.

Word equation for the reaction:

Hydrochloric acid + Sodium Hydroxide --> Sodium Chloride + water
Balanced symbol equation for the reaction: 

HCl + NaOH = NaCl + H2O

Chemical Rections

Our first Year 10 Chemical Reactions
1. Magnesium reacting with oxygen:

Method: We held a strip of magnesium metal in the hottest part of a bunsen burner flame till it caught fire. We didn't look directly at the reaction because (safety reason)
Observations:
1. The magnesium metal was a grey, shiny and flexible.
2. The magnesium burned with a very bright white light.
3. After it burned it was a white powder.


The word equation is: Iron+ Sulphur = Iron sulfide

The balanced chemical equation is: Fe + S = FeS

2. Iron filings reacting with sulphur:

Method: We mixed equal amounts of iron filings and sulphur then used a magnet wrapped in paper to separate them. We mixed them again and added the mixture to a test tube and heated strongly.
Observations:
1. The iron filings were dark, grey and powerish
2. The sulphur was neon, yellow/ green powder
3, When we heated the tube it let off a smell of rotten eggs
4. After the reaction a clump of black/ grey stuff

My Art Brainstorm, What I Care About

I care about music and I would like to make a print inspired by music, here are three examples of artists that use music as an inspiration.

1. Picasso's Three Musicians

    2. Kandinsky's Composition 8

   3. O'Keefe's Music, Pink and Blue No. 2

Art, Thumbnail sketches.

My emotion that I would like to have present in my work sadness because 

My most inspiring print maker is Kathe Kollowitz  and my favourite piece of work from her is this piece of artwork right here. This is my favourite piece because the artist used some really interesting techniques. The marks that she has made draw your eyes into the corner of the page which makes the bottom corner of the page  

German Expressionism Year10

 Käthe Kollwitz  (German, 1867-1945): Death and Tragedy.
Facts about Kathe Kollwitz.

1. At first, Kathe chose the naturalism style to depict her works. But then she changed her style into the expressionistic style.
2. Let’s talk about Kathe’s place of birth. She was born in Königsberg. The city now is called Kaliningrad, Russia. She was born with the name Käthe Schmidt.
3. Her talent as an artist was seen when she was a kid. Her father realised her talent and supported it. He wanted her to have drawing lesson. At that time, Kathe was 12 years old.
4. Many people believed that Kathe suffered from anxiety and a childhood neurological disorder.   Her mind was affected a lot by the death of her siblings.

Facts about this artwork.

1. 
   

Art Art Arty Art

This is my progress on my artwork for this term, i have added charcoal, paint and newspaper to my work.