Boat Race

Last week our homework was to make a boat our of paper and bread clips, and on Friday we had a race. At home we had to record what changes we did to make our boats go faster and other experiments like that.

When it came down to the two finalists who were Vatrina and Monolisa, Vatrina won and got a chocolate fish.

There were also other competitors in the class that made boats and it was a lot of fun seeing the boats move like they did when the contestants added the dishwashing liquid into the bread clips.

I didn’t get a chance to compete because I had to help other students with there work but from what I heard from the other side of the room was heaps of laughter and fun.

Damon

The Art of Science

Today in science we explored the reaction that happens when you add liquid detergent to milk. We discussed what happened and Mohana took photos with a webcam. The colours were amazing and we wondered if cream would have even a bigger effect?


After all the amazing effects of the dye colours mixing we decided to try a similar thing with shared painting. Each group had a small blob of paint in each corner (red, blue, green, yellow), the students had to work together to mix the paints together into art.

Have you ever tried this experiment?
Why do you think this happens?

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.

Observation/Results:

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?

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."