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Thursday 8 August 2019

HuruManu- Recycling

Aim: To learn practical ways of recycling so that we can make our world a better place.



How can we prevent climate change by recycling these products?

Plastics:
Cycling or walking: 
Paper:
Steel: 




AT WHAT RATES DO DIFFERENT ITEMS DECOMPOSE?

MY INVESTIGATION.


Image result for rates of decomposition


Choose 5 items from the list and investigate them. 

You need to answer three questions.

Name: Nappy 

  1. How long do they take to decompose?  200 - 500 years 
  2. What resource/fossil fuel are they made from? The components to making a disposable nappy are waterproof, wood pulp and synthetic polyacrylate (cloth Diapering) Disposable diaper, polyethylene plastic are used and the raw material for this is the oil: it takes 1 cup of crude oil to make the plastic for one disposable diaper.
  3. How is this resource recycled?
  4. How does this object contribute to climate change?

Wind Power

Weather and Climate Change 

Measuring weather.

Wind

Beaufort
Force
Wind Speed
(KPH)
SpinsIndicatorsTerms Used in NWS Forecasts
00-20Calm; smoke rises vertically.Calm
12-510Shown by the direction of wind smoke drift, but not by wind vanes.Light
26-1240The wind felt on face, leaves rustle; ordinary vanes moved by wind.Light
313-2080 Leaves and small twigs in constant motion; wind extends light flag.Gentle
421-29130Raises dust and lose paper; small branches are moved.Moderate
530-39190Small trees in leaf begin to sway; crested wavelets form on inland waters.Fresh
640-50250Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.Strong
751-61320Whole trees in motion; inconvenience felt walking against the wind.Strong
862-74390Breaks twigs off trees; generally impedes progress.Gale
975-87470Slight structural damage.Gale
1088-101550Seldom experienced inland; trees uprooted; considerable structural damage occurs.Whole gale
11102-116640Very rarely experienced inland; accompanied by widespread damage.Whole gale
12117 or more730+Very rarely experienced; accompanied by widespread damage.Hurricane

Wind speed - Making an anemometer.

Anemometer

MATERIALS: 

  1. Pins 
  2. Cups  (x4)
  3. Pencils  
  4. Straws (x4) 
  5. Tape  

STEPS

  1.   Put 2 holes in each cup 
  2.   Put your straws in a cross 
  3.  Tape the cross of straws together (go around with tape 3 times) 
  4.    Then pin them done in the pencil with a rubber in it 
  5. Then put the cups and straws together  
 Once you have made an anemometer we are going to record the wind speed.

Group size: 5

You will need:

Anemometer (above) 

Roles:


  • Timekeeper
  • Counter
  • Recorder
  • Anemometer Manager
  • Wind generator
  1. Mount the anemometer in a place that has full access to the wind from all directions.
  2. When the timekeeper 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. If possible, repeat the above step four (4) times and record the average number of spins on the chart.

Fossil Fuels


 Image result for coal mining

Image result for oil rig

Aim: To look at how fossil fuels are contributing to climate change and how we can prevent this.

Definition of Fossil Fuels:



Scientific Terms for Students
  • Coal: a dark-brown to a black solid substance formed naturally from the compaction and hardening of fossilized plants and used as a fuel primarily for electricity generation
  • Natural gas: a mixture of hydrocarbon gases that occurs naturally beneath the earth’s surface and is used as a fuel primarily for cooking and heating homes
  • Renewable resource: a resource that is never used up (e.g., solar energy)
  • Non-renewable resource: a resource that is not replaceable after its use (e.g., coal, gas)

Examples of Fossil Fuels:
  1.   Coal
  2.  Wood  
  3. Oil

Activity: 

In groups of 3, you will learn about different fossil fuels and the way they are mined?
Each group will be given a fossil fuel. The recorder will read it to the group. The recorder will write down some of the important points.
Person 1: Recorder: to write down 5 points of interest from the text. 
  1. 5 Points:
  2. Positives and negatives of your type of mining.
Person 2: Reporter: to read back to the class their 5 points of interest.
Person 3: Collector: Gathers the required stationery from the teacher.



Mining Fossil Fuels

What Fossil Fuels are mined? 
1.Coal




How are they mined?
Coal is extracted from the surface of the earth or from deep within the earth (called underground mining). Where are they mined?

1.  Coal is mined in South Africa, America, USA, England.


    Activity;

    On the sheet provided you need to make two drawings of your cookie. 
    1. looking down at it. 
    2. side on -  of the imaginary habitat that will live on the top of the cookie. ( trees, bushes, flax, sea, etc)

    Material:

    1.  Cookie
    2.   Plate
    3.   Toothpick
    Steps:
    1.   Get your materials
    2.   Get your cookie and put it on your plate
    3.   Grab your toothpick and start minding
    4.   See if you and get all the chocolate chips out of your cookie
    5.   And then enjoy eating the crumbs of the cookie 
    Once you have drawn your cookies you must take 2 pictures and upload them to your blog.

    Findings: What did you find out as a result of your mining?
    That it was a little hard because we had to try to get all the chocolate chips out from around the outside without breaking it but other than that it was really easy and really fun to do. 
    Conclusion: 
    It was easy but hard at the same time but it was really fun and cool. 

    Water Cycle

    AIM: TO LOOK AT THE WATER CYCLE AND HOW CLIMATE CHANGE IS AFFECTING IT.


    Definition:

    Evaporation:
    The process of turning from a liquid into vapor.
    The process of something abstract ceasing to exist.

    Transpiration:
    (of a plant or a leaf) the exhalation of water vapor through the stomata.
    (plants lose more than 90 percent of their water through transpiration)

    Precipitation: 
    The action or process of precipitating a substance of a solution.
    Rain, snow, Sleet, or hail that falls to or condenses on the ground.

    Condensation:
    Water which collects as droplets on a cold surface when humid air is in contact with it.
    The conversion of a vapor or gas to a liquid.

     

     

    Scientific words:


    • Evaporation. When water is heated by radiant energy it turns into water vapor.
    • Transpiration. Evaporation from plants.
    • Condensation. When water vapor cools, molecules join together and form clouds.
    • Precipitation. When clouds get heavy the waters falls as rain, sleet, hail, or snow.
    • Acidification: the action or process of making or becoming acidic.

    We will be conducting an experiment that looks at the different ways that climate change is affecting the water cycle.

    THE WATER CYCLE EXPERIMENT

    Bag 1: Normal Water cycle
    Bag 2: Water cycle with CO2 added: like Oceans in climate change
    Bag 3: Water cycle with ice added: like Antarctica in climate change

    Material:

    1.  Plastic bag
    2. Vivid marker 
    3.  1 cup of water 
    4.   2 drops of food coloring

    Steps:

    1.  Got our bag 
    2.  We Drew everything we needed to on it.
    3. Next, we added 1 cup of water
    4. The added 2 drops of food coloring
    5. After that, I added double-sided tape on one side of the bag and taped it to the window.

    Two Images:

     

    Findings: It was really easy to make and do.


    Conclusion:

    Findings:





    The Water Cycle: Bag 1
    CO2 Water Cycle: Bag 2
    Acid
    Desert Water Cycle
    Bag 3
    Does it cycle?
    Yes YesYes
    Amount of Water
    222
    Acidity
    121
                                                      Key: Water and acidity amount: 1 = none 
    2 = small drips
    3 = large drips

    Other comments:

    1. Water cycle 1 had no acidity 
    2 Water cycle bag 1-2-3 both have a small amount of drips in them.
    3 Water cycle bag 1&3 have no acidity in them
    4 Water cycle 1-2-3- all cycle




    Conclusion:

    It was fun and learned heaps






    Draw a labeled diagram of the Water Cycle

    Water cycle words:
    1. Precipitation
    2. Hurricanes
    3. Storms
    4. Evaporation
    5. Carbon Dioxide
    6. Water
    7. Oceans
    8. Water vapour
    9. Freshwater
    10. Flooding


    1. Icecap melt 
    2. Acidification 
    3. Deforestation
    4. Water vapour

    Icecap melt definition:
    A polar ice cap is a region of land at the North or South Pole of a planet that is covered with ice. ... As the polar ice caps melt, sea levels rise and the oceans become less saline.
    2 pictures:
















    Deforestation definition:
    Deforestation is the clearing of trees, transforming a forest into clear land. You can see the word forest in deforestation.

    Huruman - Solar Energy

    Solar Energy

    Catching the sun movie



    Materials:


    1.  4 Cups   
    2.  Water
    3.  Tin Foil
    4.  2 Sheets Of White Paper 
    5.  1 Sheet Of Black Paper 
    6. Thermometer
    7. 1 Large Cup 
    8. 1 Heat Lamp 

    Steps

    1.   Get all your materials 
    2.  Filled all 4 cups quarter the way fill
    3.  Then get your one sheet of tin foil 2 sheets of white paper and your other sheet of black paper
    4.  Put one cup on each of those sheets 
    5. Check the temperature of them all before you turn on your heat lamp 
    6.   Turn on your lamp or leave them sitting in the sun
    7. Check it every 15 minutes 3 times for an hour.

    Which surface conducts/attracts the most heat?


    Time +
    temperature
    Cup 1
    White paper
    Cup 2
    White paper+ plastic.
    Cup 3
    Black paper
    Cup 4
    Tinfoil
    0
    12121212
    40 minutes
    17212329
    15 minutes
    20152429

    Findings:

    I found that 1 cup stayed the same temperature without the heat lamp.
    Conclusion

    That it was really easy to do and found that at a lot of water was spilled.

    Hurumanu- BioGas

    RENEWABLE ENERGY

    Aim: To compare the amount of gas that is produced from different types of biomass.

    Material:
    1.   Bottles (x3)
    2.   Ballons (x3)
    3.   Permanent Marker 
    4.   Disposable Gloves
    5.   Cup
    6.   Fresh horse or cow manure
    7.  Mashed Bananas
    8.  Funnel
    9. Water
    10. Vegetable peelings
    Steps:


    1.   Label all 3 bottles
    1. Horse or cow manure
    2.Manure and Vegetable peelings
    3. Manure and mashed bananas   
           
        2. Place 1c manure

    1c manure + 1c vegetable peelings 
    1c manure + 1c mashed bananas 
        3. Fill the bottle with water
        4. Place a balloon on the top.
        

       


    A picture of three bottles with balloons on top, containing cow manure with vegetable peelings or mashed banana.
Energy science project



    Investigation.


    Research the following Biomass fuels. You will need to:

    Write a definition of fuel.
    Write 8 sentences about fuel. 
    • How is it made? 
    • Where is it made? 
    • What is it made with? 
    • What countries use it? 
    • What uses will it have in the future?  
    Place 1 image of the fuel.

    Biomass Fuel types.

    Name Agricultural crops and wood fuels.
    Definition: Agricultural crops such as miscanthus and straw from cereal crops can be used as a fuel for production of heat. Herbaceous materials have a different composition from wood and its combustion must be handled differently from the wood.

    Research:
    • How is it made?  Wood energy is the use of wood fuel to produce heat or electricity. It comes in several numbers of forms, including firewood, shavings, sawdust, wood chips, agricultural crops, and bark.
    • Where is it made? Wood biomass is the main source of wood energy in New Zealand and it comes in a number of forms.



    Name Animal waste.
    Methane Gas
    Definition:
    methane. A colorless, odorless, flammable gas that is the simplest hydrocarbon. It is the major constituent of natural gas and is released during the decomposition of plant or other organic compounds, as in marshes and coal mines. Methane is the first member of the alkane series.

    Research:
    How is Methane Made? 
    Methane is produced at shallow levels (low pressure) by anaerobic decay of organic matter and reworked methane from deep under the Earth's surface. ... Methane is generally transported in bulk by pipeline in its natural gas form, or LNG carriers in its liquefied form; few countries transport it by truck.

    Where is Methane Gas made?
    Methane that is produced and released into the atmosphere is taken up by methane sinks, which include soil and the process of methane oxidation in the troposphere (the lowest atmospheric region). Most methane produced naturally is offset by its uptake into natural sinks.
    Image:


    Name: Biogas
    Definition: Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. Biogas is a renewable energy source

    Research:
    How is it made? Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. ...

    Where is biogas made?
    It occurs naturally in compost heaps, as swamp gas, and as a result of enteric fermentation in cattle and other ruminants








    Name: Biofuels
    Definition: A fuel derived immediately from living matter.


    Research:
    How is Biofuels made?
    Biofuels are designed to replace gasoline, diesel fuel and coal, which are called “fossil fuels” because they are made from animals and plants that died millions of years ago. Biofuels are made mostly from plants that have just been harvested. There are three main types of biofuel. Ethanol, biodiesel, and biojet fuel.

    Where is Biofuels made?
    Ethanol fuel is the most common biofuel worldwide, particularly in Brazil. Alcohol fuels are produced by fermentation of sugars derived from wheat, corn, sugar beets, sugar cane, molasses and any sugar or starch from which alcoholic beverages such as whiskey, can be made (such as potato and fruit waste, etc.).






    Image: