Friday 6 December 2019

Food science

We have been looking at ways to preserve food and what happens when you dehydrate food. We imagined that we had to have a survival kit and thought about the best sort of foods to put in them. We discovered that dehydrated food is very light so is good for packing and carrying.

We also wondered which food can be rehydrated, we looked at whether food can be returned to its original state once it has been dehydrated.

We presented our findings and wonderings in a variety of different ways.


Friday 22 November 2019

'Preserving food in Kea Hub' by Lauren

For the past few weeks, we have been learning and exploring how to successfully
preserve food in different ways.  We have been conducting an experiment to see how long different foods last in varying conditions. 

First, we predicted how long they would last, before observing what actually happened. We have drawn pictures of the original product and pictures of the near final result.

Before                                                     After
The final results are gruesome but surprising. It was an exciting experience watching
the progression of the foods.

We have also been doing research about different methods of preserving work
and what sort of food they are best for. We then picked a food of our choice and displayed our findings in a variety of non-digital ways. 

In our display, we included how to best preserve our chosen food, as well as how
and why it rots. We also added in some fun facts and information about our food.

Sam's blog post on our learning about preserving food

Food preserving

This term Room 8 and 9
have started  on science,
our topic for this term is food preserving. 
We first started by listing foods in order from
most water content to least , as a prediction. 
Then we researched the real water content and
listed them too. The class wondered if water content
had something to do with rotting! 
We noticed this because we have conducted an
experiment to do with the lifespan of bread, apples and
crackers and in different storage.
A freezer, a plastic container, a plastic ziplock bag and 
a paper bag. 

Here is a table of the results after 10 days

Paper bag
Plastic bag
Plastic container
Oil seeping onto paper.
No change.
No change!
Shrivelled ,dry, no mould
Mould growing slowly. squidgy
Damp, mouldy and fast growing 
No mould, dry and crunchy.
Some growing mould.
Completely mouldy- fast growing.

After, with a buddy we chose a food
and researched it (any food)
to make a presentation about that
food and how it can be preserved.

Room 8&9 really love food science!

Tuesday 5 November 2019

Science/Pūtaiao. Fossil Fuels (House of Science Box)

This week in Room 9 we are lucky to have a science box from 'The House of Science'.

We think like scientists by carefully observing, predicting and explaining. We know we have to take our time and not rush the observations, otherwise we can miss things.

Being a scientist takes time and patience!

This week we are learning about fossil fuels, renewable and non renewable energy, and the impact these have on our environment.

First we matched up cards with the type of energy and where the energy comes from

We mixed oil and water together and learnt that they are 'immiscible', this means they cannot be mixed together.

We added detergent to the water and oil mixture and saw how this changes things. We observed that the detergent is attracted to both water and oil and helps join it all together.

We put water on a feather and observed how it stays sitting on top, but on a paper towel it soaks in.

This is how birds stay warm and dry, by having oily feathers.

Next we talked about how the fossil fuels 'Coal, Gas and Oil' are made and that they are nonrenewable, when they run out, they are gone forever!

We talked about renewable energy sources like 'solar, hydro, geothermal and wind power.

We made a model of how the fossil fuel oil is created. We used:
Playdough to represent the sea bed
Glitter to represent the dead sea life and sea plants that have sunk to  the bottom.
Coffee mixed with water to represent dirt
Small stones to represent sediment.

We layered these, then squashed it all down really hard and observed how the liquid seeped out. This shows the process that creates oil, but over millions of years.

We are looking forward to the next learning learning we do with the science kit.

Sunday 13 October 2019

Genius hour presentation day - end term 3

At the end of term 3 we completed our Genus Hour presentations and presented them to the Kauri team.
It was quite nerve wracking to have to show people all our work and answer questions about our projects but we felt very proud of ourselves.
We also discovered that things can go wrong on the day, and we have to adapt and be resilient.
Thanks for coming Tui Hub! Please leave some comments about what you thought if you have the time.

Toi: Visual pepeha