Thursday, May 26, 2011

Testing New Classroom Furniture

Mr Linington brought three new classroom chairs to Room 13 for us to test for a week. These are the  chairs shown below, and our student report on what they thought.
Which chair is your favourite?

Seriale online

Saturday, May 21, 2011

Our Class Experiment – Egg & Vinegar

Science Investigation Process - Egg & Vinegar Experiment.

Last week Monday, 11.05 Mr Wood put a fresh egg in a wine glass and filled the glass with white vinegar.

Our big question was What happens to an egg while in vinegar?
Our hypothesis was The egg shell will dissolve, it will go see through and the yolk will turn into liquid when it cracks.

The Method we used was:
1. Put full fresh egg(with shell) in a glass.
2.Cover/pour with white vinegar.
3. Leave for one week.
4. Check and record daily progress.
Things we could’ve changed or vary:
1. Time of putting the egg in the glass.
2. Time of pouring vinegar into glass.
3. Egg size.

Things we could mesure:
1. Vinegar. (different types, white, etc.)
2. Weight of egg.
3. Hardness or softness of egg.
4. Colour of egg.

Day 1(morning): The egg sunk right to the bottom of the wine glass and the egg is covered with tiny bubbles.
Day 1(afternoon): Egg shell is abit rough.
Alot more bubbles surrounding egg.
Egg is moving from on place to another in the glass.
Day 2: Egg shells peeling off.
Bubbles appearing at the top of the glass(surface of vinegar).
Some parts of egg shell is dissapeared and the egg white is visible.
Day 3: Bubbles have dissapeared.
Vinegars stable.
More shell is releasing from the egg and and floating at top.
Looks crinkly.
Washed egg.
Day 3(after washing egg): Washed off the loose shell, now eggs plain white.
Put back in vinegar.
Day 4: Vinegar has become alot more stable.
More egg white is alot more visible; looking foamy.
Some parts of the egg is turning seethrough.
Day 5: Egg white has split.
Yolk is very stable, hasnt spread like a liquid which was expected.
Last Day: Egg white is very wrinkly.

Further Questions:
1) Why is the egg white holding together?
2) Why didnt the egg yolk spread into a liquid once the egg shell was broken.
3) If we put the egg in at different time, would it effect our result?
4) What if the egg was not fresh?
5) What if the egg was boiled?

Saturday, May 7, 2011

Soda and Mentos

Our first Science experiments with mentos and coke.
Rebecca said, "On Tuesday we had library we also did a science experiment with fizzy drink’s and mentos. During our science experiment we had to put six mentos into a fizzy drink then wait for it to explode then when it is done we had to measure how much fizzy is left and record it onto a paper."
Vatrina said, "We used Mentos and soda, our big inquiry question was ‘Does the color of the Soda effect the explosion?’. No. It doesnt, its just coloring, but what I think is that the longer you open the lid the smaller your explosion will be. We had alot of fun that afternoon, we also got to share our drinks and mentos within our group. Science is very fun, I’d love to do alot more experiments."

Friday, May 6, 2011

Maths Vegetables

Problem Solving - Vegetable Garden

This week we did an activity relating to problem solving. It was called the Vegetable Garden. We had to solve a problem with vegetables and make a garden with the veges given. To solve this problem we had to follow the instructions of where the vegetable had to go, we could move the vegetables on the whiteboard to help solve the problem. We had fun doing these problem some of us were really good at solving the problem. These problem were made by our classmates and one is made by our teacher Mr Wood. Could you think of one?