Sunday, December 8, 2019

Inquiry rainbow water destiny tower result


Rainbow Water Density Tower

Aim - To observe how substances with different densities interact

Materials
Glasses - 1 per group
Food colouring (red, blue, green and yellow - you can make purple and orange by combining two colours)
Sugar or Salt (and measuring spoon)
Measuring cup - 1 per colour (you can have 6 colours to work with, or limit it to 4 colours)
Measuring syringes 
Water (warm water from a tap or kettle)
Plastic spoons to mix the sugar and food colouring in the water
Pots of water to rinse syringes between each colour
Plastic plates or trays to protect the table from sticky sugar water



Results 
The food colouring experiment was successful. There were different stages of each colour.  The experiment showed layers of coloured water of different densities, stacked on each other.



Explanation 
Look at the websites below and also do research of your own - Then write a paragraph explaining ‘the science’ behind the experiment.  Why do we see the results that we did?

The science behind the experiment is quite simple. All of the colours had different amounts of sugar, causing the colours to have different densities and refuse to mix together. Since it won’t mix it instead makes a tower of all the colours from the first colour(The darkest one) to the last colour laying on the top( the lightest colour).  

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Christmas acrostic poem

Cookies being munched loudly
Holly wreaths hanging on people’s front doors
Receiving gifts with joy, laughter, and delight
Icing on delectable gingerbread houses
Stockings filled with well thought out, exciting presents
Trees covered with tinsel, ornaments and colourful decorations
Merry Christmas NZ, enjoy the holiday season
Awesome smelling ham, glazed with honey, getting cooked.
Santa Claus handing out gifts to those who have been nice and coal to those who have been naughty. 

Image result for jingle bellsImage result for holly wreathImage result for jingle bells
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Sunday, December 1, 2019

water filer expirement

Water Filter Experiment 
Aim/ Purpose - 
To filter or clean water using a number of materials 
How to clean/filter water - making it clean
Materials -
Sand, 
gravel, 
activated charcoal, 
cotton wool, 
plastic bottles cut in half,
bucket of dirty water (can make the water dirty with soil or whatever from outside)

Predictions - What is going to work best?  What steps/process and in what order - why?
Cotton wool at the bottom - It will absorb the smaller dirt particles from the dirty water
2nd layer up - gravel - The gravel will grab onto the dirty parts and the clean water will drip off the gravel through the gaps.
Second Layer Up  - Charcoal - The second smallest material, can absorb the things not cleared by the bigger materials.
Third Layer Up - Sand - Turns hard when it’s wet - Take all the bigger dirt particles 
Top layer - Gravel - All the hugest dirt particles out first.  

Method/Steps:
My group put 3 cotton balls at the bottom second we put gravel thirdly we put sand and lastly, we put on activated charcoal and put a cup of dirty water in.



Explanation - How did it work?
When the dirty water was poured in the gravel so the water goes in the small holes and other big dirt particles in the water would get stuck up on the gravel. The water would go through and then go into the sand which would get hardened when wet and would stop the smaller water particles would get stopped there. Now only the dirty water is flowing down and touches the charcoal, the charcoal took out all the really small particles in the water are gone now the dirty water touches the cotton and the cotton drips down the cotton and comes out much more clean. Though the problem in the experiment was we used activated charcoal and that made the water a little bit black so it made the result only a small bit cleaner.  




Why is it important for cities/towns etc to purify and clean the water before it gets to peoples’ homes?
It could be bad for their health, they would suffer if they had dirty water. If it is not cleaned things would survive with sickness or die.  The thing that will take in the water would become very ill. There can be bacteria, leaves, sticks and other unhealthy/deadly things.






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