Mia+'s+Science+Fair+Reflection

Science Fair Reflection Page

Week 1 Reflection:

This week we found out what our homework project would be for this term. At first I couldn't think of any ideas at all but after a little while I came up with an idea which I think I might do my project on. The question is "Can you actually chop onions without crying?" I came up with this idea because I love cooking. The only thing I've started doing is brainstorming things I'm going to include in my project.

I like this idea Mia. Be careful with this one as we will need to make sure that you can test it fairly. You could also try it with different types of onions or even use strategies like having swimming goggles on or bread in your mouth or running water or a window open... All of these are myths that people believe about onions and crying...

Mr B.

Week 2 Reflection:

This week I didn't do much on my homework project. The thing I did was make a brainstorm and write down all the things I'm going to include. I'm either going to have just me testing the theories or me and someone else.

Week 3 Reflection:

This week I looked on the internet and chose eight theories that I'm going to look into. I am going to have my two sisters and I testing the theories. My next step is to look into how those theories are ment to stop you crying and write a hypothesis for each of them.

Thats cool Mia. Are you planning to test 8 different things or one main one? Come and see me. Mr B

Week 4 Reflection

I have now decided on my theories that I am going to test. They are.... « Put the unpeeled onion in the freezer first for about 10 minutes <span style="color: #00ff00; font-family: "Comic Sans MS",cursive; font-size: 120%;">« Soak the peeled onion in water first <span style="color: #00ff00; font-family: "Comic Sans MS",cursive; font-size: 120%;">« Hold a piece of bread in your mouth <span style="color: #00ff00; font-family: "Comic Sans MS",cursive; font-size: 120%;">« Only breathe through your mouth <span style="color: #00ff00; font-family: "Comic Sans MS",cursive; font-size: 120%;">« Don’t chop the onion root- do it last <span style="color: #00ff00; font-family: "Comic Sans MS",cursive; font-size: 120%;">« Wear swimming goggles <span style="color: #00ff00; font-family: "Comic Sans MS",cursive; font-size: 120%;">« Put white vinegar on the chopping board <span style="color: #00ff00; font-family: "Comic Sans MS",cursive; font-size: 120%;"> Light a candle nearby where you are chopping

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">11/9/11

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">I am now all ready to test. I've finished researching and I've wrote my hypothesis. I'm going to create a table that my sisters and I will fill in when testing the different theroies.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">These are why the theories are meant to work

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Putting the onions in the freezer____﻿__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">When you put an onion in the freezer the cold temperatures should slow down the reaction of the acids so less sulphuric acid reaches your eyes.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Soaking the onion in water first__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">The water dissolves the sulphuric acid so it gets washed down the sink before reaching your eyes.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Holding a piece of bread in your mouth__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">Somehow it’s meant to stop the gasses reaching your eyes.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Wearing swimming goggles____﻿__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">It stops the gasses from reaching your eyes.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Chopping the onion root last__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">The most acids are in the root of the onion so chop it at the last minute to avoid tearing up.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Only breathe through your mouth__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">It draws the gasses over your wet tongue instead of going up your nose. When you breathe through your nose there are instant tears.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Putting vinegar on the chopping board__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">The acid from the vinegar stops the reaction between the other acids.

<span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">__Lighting a candle nearby where you are chopping__ <span style="color: #0000ff; font-family: "Comic Sans MS",cursive; font-size: 120%;">The candle draws away all the acids into its flame.

<span style="color: #ff00ff; font-family: "Comic Sans MS",cursive; font-size: 130%;">13/9/11

<span style="color: #ff00ff; font-family: "Comic Sans MS",cursive; font-size: 130%;">Yesterday I made two different tables to display my data in when I'm testing <span style="color: #ff00ff; font-family: "Comic Sans MS",cursive; font-size: 130%;">One table is going to be filled out by my sisters and I to see what theories work the best <span style="color: #ff00ff; font-family: "Comic Sans MS",cursive; font-size: 130%;">I'm hoping to test the theories and fill out the tables tomorrow

<span style="color: #000000; font-family: "Comic Sans MS",cursive; font-size: 130%;">Well done Mia. This looks good. I look forward to seeing your results. Happy testing. Mr B

<span style="color: #000000; font-family: "Comic Sans MS",cursive; font-size: 130%;">21/9/11

<span style="color: #000000; font-family: "Comic Sans MS",cursive; font-size: 130%;">I have now finished testing. I'm quite surprised at the results (A lot different to my hypothesises). <span style="color: #000000; font-family: "Comic Sans MS",cursive; font-size: 130%;">My mum, dad and I filled out a table while we were testing and gave it a yes, no or 1/2 (1/2 being eyes slightly stinging not watering). Those results are all typed up to see which theories worked and which ones didn't. I'm still deciding on how I'm going to present it.