Hurumau-Decomposition

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

Hypothesis: I think that the banana would break down first, then the bread and then the paper then the styrofoam.

Materials:

1. Paper   
2. Banana 
3. Bread   
4. Styrofoam 
5. Test Tube x4
6. Test Tube Rack  
7. Water    

Steps:

1. Put the Test Tube in the Test Tube Rack.  
2. put the styrofoam in one of the Test Tube. 
3. Put the Paper in one of the Test Tube.
4. Put the Bread in one of the Test Tube.
5. Put the Banana in one of the Test Tube.
6. put water all of the Test Tube.
7. then leave it.

Image:

Findings:

TODAY	Colour	Change	Observations
Banana	yellow/brown	nothing	banana is half of the Tube
Paper	brown	nothing	taking up most of the Tube
Styrofoam cup	white	nothing	taking up half of the Tube
Bread	beige	nothing	taking up most of the Tube

•  The banana is half of the Tube 
•  The Paper is taking up most of the Tube
•  The Styrofoam is taking up most of the Tube 
•  The bread is taking up most of the Tube 

3 weeks	Colour	Change	Observations
Banana	black brown cream	rotten	bottom of the tube
Paper	brown	nothing	bottom of the tube
Styrofoam cup	white	nothing	halfway of the tube
Bread	black white green	rotten	halfway of the tube

•  The banana is half of the Tube 
•  The Paper is taking up most of the Tube
•  The Styrofoam is taking up most of the Tube 
•  The bread is taking up most of the Tube 

5 weeks	Colour	Change	Observations
Banana	black brown cream	rotten	bottom of the tube
Paper	brown	nothing	bottom of the tube
Styrofoam cup	white	nothing	halfway of the tube
Bread	black white green	rotten	halfway of the tube

   

•  The banana is half of the Tube 
•  The Paper is taking up most of the Tube
•  The Styrofoam is taking up most of the Tube 
•  The bread is taking up most of the Tube 

Conclusion:

We found out that the Banana rotted first then the Bread but the Cup and Paper did not change.
We also found out that the things that we put in the Test Tube changed colours.

Decimals

Hurumau-My Investigation on climate change

My Investigation on climate change

ACIDIFICATION

DEFINITION: becoming acidic

What is happening to the oceans?

the ocean observes co2.

What does this do to shellfish?

the shellfish deform and doesn't form.

HOW DOES CLIMATE CHANGE CONTRIBUTE TO THE ACIDIFICATION OF OUR OCEANS?

2 Images;

 

DEFORESTATION

DEFINITION: it is when people cut down trees around the world

What are trees used for?

trees are used for paper, pencil, furniture and oxygen.

HOW DOES DEFORESTATION AFFECT THE CLIMATE?

2 Images;

ICECAP MELT

DEFINITION: it is when the ice melts

If all the ice melted what would happen?

the water level would go up when the ice melts

HOW DOES ICECAP MELT AFFECT CLIMATE CHANGE?

it affects climate change by the water levels goes up.


2 Images;

WATER VAPOUR

DEFINITION: when water turns into gas

HOW DOES  WATER VAPOUR AND EVAPORATION CONTRIBUTE TO CLIMATE CHANGE? 

2 Images;

science laboratory

Aim: To learn about the expected behaviour in a science laboratory.

Our R9 Class Treaty

1.  bags under your desk  
2.  no food or drinks  
3.  no running
4.  don't touch experiments 
5.  report any breakages or spills
6.  do not taste or sniff anything  

Safety in a laboratory.

teacher   shoes   practical  teacher laboratory   ask  sniff teacher  breakages 

1.   Follow the instructions given to you by the _____teachers_____ .
2.   You must not enter the laboratory without your ___teacher_____.
3.   Report all _____breakages_______ to your teacher.
4.   You must never eat or drink in a _____laboratory_______ .
5.   ___shoes____ must be worn at all times.
6.   If you spill something you should tell your ____teacher_____ immediately.
7.  You should wash your hands after every ___practical____ activity.
8. You should know what you are doing. If in doubt ___ask___ your teacher.
9. Never taste or ___sniff___ chemicals.

In your group, discuss how the following scenarios could be dangerous.

1. Not putting your bag under your desk.
2. Running around in the laboratory.
3. Not wearing shoes in a laboratory.
4. Shaking a test tube with your thumb over its mouth?

How do we work in this laboratory?

1. Beginning and End of class: Lining up, Entry, Seating, 
2. Equipment tray: equipment list and details.

• Test tube - This is used for experiments using liquids. They have a bung that can be placed in the top. Test tubes sit in a test tube rack.
• 
• Conical Flask - This is used for experiments with liquid up to 150 ml. The flask has a rubber bung for the top and the glass is heatproof.
• 
• Glass Stirring rod - This is a 20cm glass rod used to stir and mix any liquids together.
• 
• Test tube tongs - These are used to hold a hot test tube after an experiment.
• 
• Spatula - This is for holding very small amounts of chemical powders.
• 
• Funnel - used to channel liquids into a smaller container.
• 
• Measuring Cylinder - This is used to measure liquids for experiments. The liquids will be poured into a beaker or test tube once measured out.
• 
• beaker

       

Hurumau-Water Cycle

AIM: TO LEARN ABOUT WATER ON EARTH.Climate Chaos

Written by: Qyn

Title	How to make a water cycle
Purpose	The purpose is to make a normal water cycle in experiment 1  To find carbon dioxide in experiment 2
Materials	Clear zip lock bag 1 cup of cold water  2 drops of blue food colouring  Permanent marker 2 strips of double-sided tape Window to stick Second Experiment  Clear zip lock bag 2 drops of blue food colouring  Permanent marker 2 strips of double-sided tape 1 teaspoon of baking soda 1 cup of soda water Litmus paper
Steps	Experiment 1  Draw a water cycle on the clear zip-lock bag with a   marker. Put 2 double-sided tapes on the top and bottom part of the zip lock bag Carefully put 1 cup of cold water in a zip lock bag. Add 2 drops of blue food colouring in the bag of water. Close the zip lock bag and stick the zip lock bag on a window where there is sunlight. Experiment 2   Draw a water cycle on the clear zip-lock bag with a permanent marker. Put 2   double-sided tapes on the top and bottom part of the zip lock bag Carefully add 1 cup of soda water in a zip lock bag   Put the litmus paper on top of the zip lock bag. Add 1 teaspoon of baking soda in the bag and quickly close the zip lock bag. stick the zip lock bag on a window where is sunlight.
Conclusion	Experiment 1 I think what is going to happen to the normal water cycle is that there will be only half of the water left. Experiment 2 I think the litmus paper will change colour

Two Images:

Findings:

	The Water Cycle: Bag 1	CO2 Water Cycle: Bag 2 Acid	Desert Water Cycle Bag 3
Does it cycle?	2	2
Amount of Water	2	2
Acidity	0	2

Key: Water and acidity amount: 1 = none 

2 = small 

3 = large 

• for the first bag only cycled in a small bit
• the first water cycle the water changed a small amount 
• the second cycle changed a little bit
• the litmus paper change a small amount  

Conclusion

the normal water cycle had an average droplet of cycle.

the water of the normal water cycle changed a small amount.

On the second water cycle, the litmus paper only changed a little bit of colour.

the second cycle changed a little bit.

Clay Sculpture

For the past week for Art, we have been making our characters for our stop motions.

Here is what I have made.

I made one of the four Pheonix and its name is Moonlight and the other character that I made is Bob the guard from the prison.

What I found challenging is how to make the tiny little details of the characters.

Hurumau-Solar Energy

Solar Energy

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

Hypothesis: I think the colour silver will attract the sun. 

Materials:

1. white cup 
2. white paper 
3. black plastic
4. 2 clear cups
5. tin foil  
6. heat lamp 
7. thermometer

Steps

1. Collect all of the materials 
2. Put the white paper on the table
3. Put the white cup on top of the paper
4. Put black plastic on the table next to the white paper 
5. Put the cup on the black plastic cover 
6. Put the clear cup in the centre of the plastic
7. Put the tin foil next to the black plastic 
8. Cover the clear cup with tin foil
9. Put the heat lamp in front of the cups

1.  Findings:

Time	Cup 1 White	Cup 2 Black	Cup 3 Tinfoil
0	16	16	16
15	19.1	19	20
30	25	27	26
45	20	24.5	22.5

Conclusion

In conclusion, my findings in this experiment state that the colour attracts the heat more. The colour white attracts less heat. We found out that solar panels are coloured black because black attracts more heat. In other hot countries, they don’t paint their houses black because they don’t want to be hot, so they paint their houses white.

Hurumau-Greenhouse Effects

AIM: TO LOOK AT CLIMATE CHANGE AND THE GREENHOUSE EFFECT.

THE GREENHOUSE GASES

The Greenhouse Effect experiment

Materials

1. bottles
2. thermometer 
3. heat lamp 
4. baking soda and citric acid
5. rubber bung 
6.  water 

Procedure

1.  plug in the heat lamp
2. put the heat lamp towards the bottle
3. add the water, baking soda, mixture to one of the bottle
4. add just water to the second bottle 
5. put the rubber bung and the thermometer in the bottle top 
6. start recording the temperature of the bottles every 5 minute

Findings: The Greenhouse Effect Data 

Minutes	Bottle 1: Water	Bottle 2: CO2 Gas
0	18'c	18'c
5	22'c	25'c
10	25'c	25'c
15	26'c	25'c
20	No recording	No recording
25	No recording	No recording
30	No recording	No recording
35	No recording	No recording
40	30'c	41'

Conclusion: