Indicators

 What is an acid?

An acid is something you can use in science and can be used for lots of different things. Acid is also dangerous and can hurt you in many ways. - Such as vinegar and lemon

What is an Alkali?

An Alkali is something that can be found in cleaning products- Soapy and slippery

For example, Water is Neutral , Hand wash is alkali and lemon juice is acid.

Indicators we used:

Cranberry Juice,tea, turmeric and universal indicator.

The colour changes: For Cranberry Juice it turned darker and Turned lighter for acid, turmeric didn't have much of a change but the change it had was a little darker.

This is the colour change you get with universal indicator

Red is acid, Green is neutral and blue is alkali

Sports Heroes

 For the past few days we have been working on a slide about sports heroes, we had to write at least 2 for each slide but we also allowed to do only 1 for local and I added in an acting hero, I included where they were born,when they were born and some other facts about them.  Here's my slideshow of Heroes.

World without wheels

For the past few days I have been writing a story about a world without wheels, we were allowed to make it where wheels are new and they have only just been invented. I finished my story and its about a world where wheels were hard to have because they weren't expensive but to them they were and people didn't have the money. I'll let you read it to find out the rest of the story. 

Jelly Baby Osmosis Results

Jelly baby osmosis

What we done was fill up 3 petri dishes with different types of water, one being salt water,sugar water and regular water. We took 8 jelly baby's and put 2 in each and left 2 out to see the original form of the jelly baby.

What happened was they all grew a bit but the regular water one grew the least ours ( Erin,Maddison and Me ) fell apart when we were moving them from the petri dishes to a paper towel to observe. The sugar one and salt ones were really similar in shape and size but I personally think the sugar one grew a little more.

It happened because the jelly's took in the water and it grew, Some of the water has more sugar and more ingredients in the water so the sugar one would of affected the the jelly's the most because the water had sugar and the jelly's had sugar.

Skittle Experiment

 Yesterday for science we ( Me Keah and Gemeve ) done a skittle experiment we started with a little clear lid and base and filled it up with water about 3 quarters full. Then we got to grab up to 5 skittles we started with one of each colour red,orange,yellow,green and purple we placed them all round the water and watched the colour from the skittles fade away into the water. When all of them were finished we flipped them over gently so that the colour didn't mix. Once all of them finished we noticed how the colours stayed in their own little bubble of colour all of them formed into a little triangle in the corner of where they were placed. We mixed the colours together and it just made an ugly brown, then we done another one, The same thing happened to the second one. But we done it with orange and yellow skittles. :) Here's a little bit of some questions we answered.

Skittle Observations

Instructions: 

1.  ¾ fill a petri dish with water. 

2. Carefully place 4 differently coloured skittles evenly spaced around the outside of the petri dish. 

3. Watch...

 

1. 
   

Observations

• What things did you notice?  Can you make five observations?

•   The colours faded  from the skittles. 

•   the skittles made lines in the water from where the skittle colour faded.

•   It coloured the water.

•   the water made the skittles drain the water 

•   The coloured water mixed together and made an ugly colour

• Did anything surprise you?  What weren’t you expecting to observe? 

No-Keah

I wasn’t expecting the colours to stay in their own bubble I thought they would automatically merge with their neighbours boarders and make a mixed colour line where they joined. - Ayla

Not really- Gemeve

Wonderings

• What questions arose in your mind as you did this activity?

what colour is more dominant 

                            Why was the lines forming in the water from the skittles- Gemeve

Heroes

 For the last few days we have been learning about the 28 Maori battalion soldiers we all read the boxes with the story's in them then we had to write and answer questions about them. We wrote them in our books the other day but we had to write them on a doc with better answers. I finished this doc with questions about the stretcher bearers, how people saved others lives that I've answered and more information about them. Here are some images of my answers and information.

 

Bunsen Flames

 Today/Yesterday for Science we set up the Bunsen burners and then figured out what the difference was between the safety flame ( orange ) temperature and roaring flame ( blue ) temperature on a Bunsen burner by warming Water. The starting temperature of the water ( in a beaker ) was 11 degrees then when we warmed the water for 5 minutes on a safety flame we got up to 50 degrees, The roaring flame also starting at 11 degrees it got up to 53 also warming for 5 minutes. 

Which wasn't much of a difference considering other groups got differences of 20--100. Then we had to figure out the average of all the groups temperatures by adding all the temperatures together then divide it by 7, I didn't figure it out but it was quite high with over 200 then divided it by 7 so it was around 35. Here's a photo of the roaring flame ( blue ) and the safety flame ( orange )

Evaluate the practical.

We need to make the test fair so that everyone is at the same stage and some people aren't struggling more than others.

We need to make sure everyone has the same thing and same equipment to keep it fair for everyone.

It was half and half a fair test because some people didn't warm it for exactly 5 minutes,some of us took the thermometer out early lastly people had different amounts of water.

this experiment could be improved by everyone starting and finishing at the same time all ready and have a specific measurement to make it as close as possible