Monday, May 23, 2011

Oxygen - Our Science Experiment

Over the last few days we have been going through the scientific process. We started with a question that we wanted to investigate.

How is oxygen formed?

We then spent a few sessions researching how oxygen is formed and came up with some conclusions. During our researching period we learnt to use the wonder wheel in google to help us condense our information.

Here is a brief summery of what we came up with:

That plants take in carbon dioxide (co2) and water (h2o) and it produces oxygen (o2) and glucose (sugar.)This process needs to have light in order for it to happen.


Then we came with our hypothesis and designed our investigation.


Hypothesis:

The light in the candle will go out when there is no oxygen (o2) present and then the leaf will form oxygen when left in light over a period of 4 days.

Equipment:

1 X Large Jar

1 x Candle ( long)

1 x leaf (with chlorophyll present)

1 x matches

Method:

1. Light the candle.

2. Place the candle into the upside down jar with the leaf inside.

3. Observe

4. Once the flame is out leave the jar over turned for 3 days.

5. After 3 days pull the candle out without letting oxygen in.

6. Re light candle and place back into upturned jar.

7. Observe

Observations:

The flame initially went taller and went brighter. Then it slowly went out. It left behind smoke that filled the jar. It also left a black mark on the top of the jar.


Here is the video of the first part of our experiment. Check in a few days for the second part and our conclusion.



Wednesday, May 18, 2011

My Story About My Favourite Pet. Norm Hewitt video

Today we had a SPCA presentation from Norm Hewitt . Afterwards we did some writing about a favourite time with a pet and this is mine.



My Dogs Last Days.

The bone swiftly glided through the air as the tears slowly dripped down my face and fell on to the dry concrete. She leaped up as if defying gravity and clenched the meaty bone with her mouth. As she trotted one step at a time I was sure she gave me a wink. A smile drew across her face, Why was she smiling she had nothing to smile about? Then as I raised my head I noticed the big lump on her head. It made me think how much pain she would be in. My eyes watered as if it had rained for just about a year.
I was told that she had a brain tumour and they couldn’t remove it. She didn’t know that these days were her last. She came and sat on me and licked my face, soon she fell asleep. I felt her tail wag as she awoke. The pain rose again from the depth of my heart. Goodbye I thought to myself. The day ended hastily as if the sun was only up for a minute the moon rose as the stars did. I unlocked the door and she jumped through then I lead her to my room, she slept on my bed that night.
The sun rose but the clouds were covering it. The day looked as I felt scared, frightened, and sad. Today was the day, the last day I would ever see my Rufus again. The flood gates opened again and the tears ran down my check as if they would never end. We took her to the vet little did she know it was the last time she would ever see me, my family, my house her home again.
The memories flooded back to me, the day when I was little, she ate my ice-cream straight off the cone when I was little, the painting I did while she admired from next to me. The love we shared, oh and I could never forget the compactions she showed me.
We took her inside the veterinary and they put her on the examining table she sat quietly with no emotion. I couldn’t believe that it was happening to her my darling dog Rufus, the dog that has been with me since I was in my mother’s stomach, it was hard just thinking about it.
The moment came when she had to say goodbye I held her paw until it was over the pain wrenched in my guts the pain arose once more.
I remember the last thing I ever said to her, ‘’good girl, no one will ever replace you there is no dog like you’’.
By Aria.




First Episode of Roslyn TV

Tuesday, May 17, 2011

How Oxygen Is Produced

Oxygen is one of the key things in a Humans life. If we didn't have oxygen, we would all die because our bodied wouldn't get the nutrition's we need. Oxygen is produced during photosynthesis by a light called phototsystem 2, which is absorbed and is used to split a molecule of water.

Monday, May 16, 2011

How To Make A Paper Sail Boat



To make a sailboat out of an A4 square sheet of paper.
Equipment:
1 x A4 sheet of square paper
1 x Ruler
Steps:
1. Fold the A4 square piece of paper diagonally from one corner to the next.
2. Open the piece of paper flat.
3. Turn it over and fold it into square quarters.
4. Open the paper out flat.
5. Fold the two squares that don’t have any lines into the centre.
6. Turn it upside down so that the folds are on the table.
7. Press the top two folds inside so that you end up with a diamond.
8. Fold one side of the split down, then half way up.
9. Tuck the flap into the top
10. Fold the bottom triangle up to the middle



Wednesday, May 11, 2011

My Paper Plane Movie.



This is how to make a paper plane by Aria





Friday, May 6, 2011

The egg and the bottle.



We've doing science for our topic we found this cool experiment you should try it to.

Thursday, May 5, 2011

WALT:Infer from text

Starting with a bang

This week we started to explore science and why things happen. We went through and did the egg experiment.

Here is the same experiment that we did on youtube:





Can you help us explain why this happens?