Pages

Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Tuesday, 29 October 2019

Hurumanu-Decomposing

Decomposting

Aim: To learn about the rate that different materials decompose. 


Image result for test tube rack



Hypothesis: I think that...... the bread will become liquid and be all mouldy

Materials:

  1. Beakers  
  2.   Beaker holder
  3.   bread
  4.   banana
  5.   styrophone
  6. cardboard  
  7. water    

Steps:
  1.   Get your materials
  2.   put some water into one of the beakers
  3. but the food, cardboard and styrophone
  4.   wait 1 week then check  and repeat
  5.   
  6.   
  7.  
Image:






Findings:



TODAY
Colour
Change
Observations
Banana
Greenshrunk
it shrunk and has green mould growing
Paper
brownnothing it has stayed the same
Styrophone cup
whiteNothingit has stayed the same
Bread
yellowMelted

the bread soaked up the water and melted

  • the banana started to shrink  
  •   the paper stayed the same
  •   the styrophone cup did not get effected
  • the bread started melting

3 weeks
Colour
Change
Observations
Banana
greenshrunkit shrunk and has green mould growing
Paper
brownnothingit has stayed the same
Styrophone cup
whitenothingit has stayed the same
Bread
yellowMeltedthe bread soaked up the water and melted

  •   the banana got more green and hard
  •    the paper stayed the same
  •   the styrophone cup did not get effected
  • the bread melted more


5 weeks
Colour
Change
Observations
Banana
greenshrunkit shrunk and has green mould growing
Paper
brownnothing
it has stayed the same
Styrophone cup
Whitenothing
it has stayed the same
Bread
yellowmeltedthe bread soaked up the water and melted
  
  •    the banana was like a curled stick with mould on it  
  •    the paper stayed the same
  •     the styrophone cup did not get effected
  •    the bread melted into a hard liquid 


Images:




Conclusion:I enjoyed this experiment and I learned that bread and water dont mix and banana goes hard and curly with mould on it.






Video questions:

What has human activity done to our planet?


What is Zero Waste?
Definition:

What stuff has a carbon footprint?

What are 2 easy things to help our planet?
  1.   
  2.    
What do we need to recycle?



What does recycling do to our planet?


How much of our rubbish is made up of food scraps?


What does methane gas do to our planet?


What does soil do to carbon dioxide in the atmosphere?


What do using zero waste practices do to our planet?

    What is a carbon footprint?


    What is your Carbon Footprint?


    You are now going to look at your own carbon footprint by taking a questionirre. Remember to 'Add details to improve accurcay'.

    Based on the questionaire what is your:

    1. Ecological Footprint
    2. Carbon Footprint

    How many planets did you have?




    What is your personal Earth overshoot day?

    ENERGY SAVING TIPS FILM


    Name 2 of the tips.

    1.   
    2.   

    MY INVESTIGATION.


    Image result for rates of decomposition



    • Choose 3 items from the list.
    • Investigate them using Google.
    • Answer the 4 questions below.


    Name: 
    1. How long does this resource take to decompose?
    2. What resource / fossil fuel are they made from?
    3. How does making this object contribute to climate change?
    4. How is this resource recycled?







    Hurumanu-Wind Power!!


    Measuring weather.

    Definitions:

    1.  Anemometer: an instrument for measuring the speed of the wind, or of any current of gas.
    2. Beaufort wind scale: The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale
    3. typhoon: A typhoon is a mature tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere. This region is referred to as the Northwestern Pacific Basin, and is the most active tropical cyclone basin on Earth, accounting for almost one-third of the world's annual tropical cyclones. 
    4. monsoon:Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea
    5. what is it when the weather is really nice and turns to hail:As the article explains, hail formation occurs "when strong currents of rising air, known as updrafts, carry droplets of water high enough that they freeze." The higher these droplets get, the cooler the temperature, even during a hot summer. ... In fact, warmer weather might actually result in a stronger updraft.

    Anemometer

    MATERIALS

    1. 2 sticks 
    2. 4 cups
    3. sellotape  
    4.   pencil with eraser at bottom
    5.   pin  
    6. sticky note

    STEPS

    1.   Get your materials
    2.   Put your 2 sticks in a cross shape
    3.   Put your four cups on the end of the sticks (2 on each stick)
    4.   Tape the cups
    5.   Tape the sticks in place 
    6. Get a pencil and a pin
    7. Pin goes in the rubber of the pencil through the tape
    Group Investigation.

    Groups size: 5 
    Roles:
    • Timekeeper
    • Counter
    • Recorder
    • Anemometer Manager
    • Wind Manager
    1. Mount the anemometer in a place that has full access to the wind from all directions.
    2. When the time keeper says "Go", the counter in each group will count how many times the marked cup passes them in one minute and write it down.
    3. Repeat the above step four (4) times and record the number of spins on the chart.

    FINDINGS

    • Record how many times it spins and record it in the table below.
    • You will need to time them and count the number of spins.



    CONCLUSION: I learned that there is so many different wind speeds for different places









    Instructions:
    • Go to the measuring place and set up your wind gauge.
    • Make sure everyone in your group is ready to start their roles.
    • Record how many times it spins and record it in the table below.
    • Count the number of spins in 15 seconds.
    • Record it on your chart.

    FINDINGS


    Place name on school grounds                                    Number of Spins in 15 seconds
    1.Field                20
    2.Old J Block site                 15
    3.Grass hill in quad10
    4.Tennis Court gate                  3

    • USING
    •  A4 PAPER DRAW YOUR RESULTS ON A GRAPH.
    • TAKE A PICTURE OF THE GRAPH AND UPLOAD IT TO YOUR BLOG
    WHICH IS THE WINDEST AREA AND WHY? the field because its open
    WHICH IS THE CALMEST AREA AND WHY?the tennis court gate because it is sheltered with trees 
    WHERE IS THE BEST PLACE ON LAND TO BUILD A WINDMILL? in a big open area

    CONCLUSION: 

    I really enjoyed this research and investigating all of the different parts of wind and i all so learnt the amount of wind in different places of my school.





    Wind


    Beaufort
    Force
    Wind Speed
    (KPH)
    Spins
    Indicators
    Terms Used in NWS Forecasts
    0
    0-2
    0
    Calm; smoke rises vertically.
    Calm
    1
    2-5
    10
    Shown by direction of wind smoke drift, but not by wind vanes.
    Light
    2
    6-12
    40
    Wind felt on face, leaves rustle; ordinary vanes moved by wind.
    Light
    3
    13-20
    80 
    Leaves and small twigs in constant motion; wind extends light flag.
    Gentle
    4
    21-29
    130
    Raises dust and loose paper; small branches are moved.
    Moderate
    5
    30-39
    190
    Small trees in leaf begin to sway; crested wavelets form on inland waters.
    Fresh
    6
    40-50
    250
    Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.
    Strong
    7
    51-61
    320
    Whole trees in motion; inconvenience felt walking against the wind.
    Strong
    8
    62-74
    390
    Breaks twigs off trees; generally impedes progress.
    Gale
    9
    75-87
    470
    Slight structural damage.
    Gale
    10
    88-101
    550
    Seldom experienced inland; trees uprooted; considerable structural damage occurs.
    Whole gale
    11
    102-116
    640
    Very rarely experienced inland; accompanied by widespread damage.
    Whole gale
    12
    117 or more
    730+
    Very rarely experienced; accompanied by widespread damage.
    Hurricane

    Based on your findings what was the Wind Speed and the Beaufort Wind Force for each area.




    Spins per minute
    Wind speed ( kph)
    Beaufort Scale
    Field
    8013-203
    Old J Block site
    6013-203
    Grass hill
    4013-202
    Tennis Court Gate
    126-121



    Wind Farm construction

    Tuesday, 10 September 2019

    Hurumanu-Sun heat



    Aim: To find out which color attracts the suns heat.


    Hypothesis: I think that black attracts heat


    Materials:


    1. white paper 
    2. white cup x2
    3.  tinfoil
    4.  garbage bag x2
    5.  water
    6. thermometer
    7. clear cup

    Steps


    1.   Get your materials 
    2.  set your materials up like the picture
    3.  every 15 minutes record your temp
    4.  write your temp in the chart
    5.   keep doing it until you get to 45 minutes

    Findings:

    my findings were the thermometer kept on going down instead of going up and my group spilt 2 cups












    Time 
    Cup 1
    White
    Cup 2
    Black
    Cup 3
    Tinfoil
    0
    16,c16,c16,c
    15
    17,c18,c17,c
    30



    45



    Conclusion










    Activity:

    In pairs rate the livability of coal vs solar energy.

    Comparing Coal energy with Solar energy ( Rate; 1 = poor to 10 = great)

    Factor
    Solar
    Coal
    Livability


    Sustainability


    Accessibility


    Cost


    Your choice...



    Solar Sharing ( from 2040)




    Climate Chaos


    Title`

    Solar energy

    Aim

    To see what colour attracts the heat from the sun

    Hypothesis 

    My hypothesis  is that the black is going to attract the most heat

    Materials

    1.White paper
    2.White foam cup
    3.Black piece of plastic
    4.Clear plastic cup 
    5.Black plastic cover
    6.Piece of tinfoil
    7.Silver cup/ cup covered in tin foil
    8.Heat lamp
    9.100ms of water in each cup
    10.thermometer
    11.timer

    Steps

    1 get your materials
    2. Put your plastic sheet ,white paper and your tinfoil and put them on your table
    3 put your clear cup and put the black bag cover on it
    4 put your other cups on the cloloured material\
    5 pour in your water
    6 plug in your heat lamp in
    7 check the temperature every 5 minutes

    Data/Findings

    I found that black attracts most heat from the sun
    White cup got up to 17,c
    The black cup got up to 18,c
    The silver cup got up to 17,c


    Conclusion

    my finding in this experiment state that black is the one that attracts most heat
    black plastic helped to the experiment to work because the clear wont work