Osmosis - Gummy bears

 Osmosis: The movement of the solvent through the wall of the solid. 

Aim:

I want to find out what happens to the gummy bears when we put them into different liquids.

Prediction:

i think that the gummy bears will shrink or grow in the liquids.

Methods:

Equipment

1. Three solutions - water, sugar, and salt.

2. four gummy bears of the same colour.

3. two petri dishes.

4. marker pen.

5. Electronic balance.

6. measuring cylinder.

7. beaker.

steps

1. Get your equipment.

2. Label petri dishes with DRY, WATER, SALT WATER, SUGAR WATER

3. Weigh the gummy bears and record their weight on the petri dish

4. Add 40mL pf the solution into the petri dish.

solvet	dry	wet
water	2.24
Salt water	2.35
H2O	2.40

floods

During the past few days there has been lots of flooding happening across new Zealand. Hundreds have already been evacuated in New Zealand's Canterbury region floods. Throughout Ashburton there has been many roads, Bridges and farms affected by the floods even causing some animals to drown. 

In Hornby, it wasn't too bad and mostly we kept dry but there was a little of heavy rain. I wonder if this will happen again? 

                                                         

Hands on fire

Aim:

To safley light my hands on fire.

4 ways to do this safely.

1.  Listen to the teacher.

2. Have an fire extinguisher with you.

3. Wear your googles.

4. Tie your hair back.

Equipment:

1. Detergent

2. Lighter

3. Saftey googles

4. Gas

5. Tray

6. Hose

instructions:

1. Collect your equipment.

2. Put some water into the tray.

3. Squirt some detergent into the water.

4. Put on saftey glasses.

5. Tie up long hair.

6. Take off all your jewellery.

7. Wet your hands, wrist and arms.

8. Bubble the gas into the water.

9. Scoop the bubbles but not the water.

10. Hold the bubbles in front of your face with your arms locked.

Hurumanu 6 - My learning story

 

Christchurch Earthquakes

people affected by Christchurch Earthquakes

- family died

- people with homes destroyed 

- people lived in garages

because they felt nervous / scared / worried 

-injuries

- people has to move away form
Christchurch

-business places broken-move business

- set up other medical / centers / hospital depts.

helpers

1. Taiwanese rescuers

2. student army

3. japanese search and rescue

4. navy

5. nz military

making a compass

 Today we learned how to make a compass with everyday materials. the materials we used to make the compass work was: water, pin, magnet, leaf and an container. the first step was to fill your container 2 cm deep with water. second step was to put an leaf at the top of the water gently so it does not sinks. third step is to grab your magnet and your pin and scrap your pin aside the magnet not to hard tho for 3 minutes. then once the 3 minutes is done you take the pin and carefully place it on top of the leaf make sure it does not sink and wait till it has stopped moving then your done the compass should face to where north is  

Hurumanu 3 Compass -

 one thing that affects a compass reading correctly -

objects such as keys, tables with metal legs, steel screws, phones and even heavy framed spectacles. High voltage power lines, car bodies and flashlight batteries will impact the compass too. Really anything that is built with steel metal or power.

3 jobs that still use compass -

1. Marketing & Sales Coordinator. 

2. Administrative Assistant. 

3. Staff Product Manager.

3 sports that require a compass -

1. Underwater Orienteering

2. Letter boxing

3. Ski Orienteering