Milk Plastic

Aim: to make milk into plastic.

Video: Video to turn milk into plastic

equipment: Stove, oven or microwave, Measuring cup, Measuring spoon (tsp.), Milk (1 cup), Pot or microwaveable container, White vinegar, Paper towels, Spoon, Mug, Optional food colouring, Glitter or cookie cutters for decoration. 

method: Pour 1 cup of milk into a pot or microwaveable container. Heat the milk in the microwave or the stove until it is steaming. Stir the mixture with a spoon. Stack 4 layers of paper towels on a surface that is safe to get damp. Fold the paper towels over the curds and press down to absorb excess liquid. You can colour your food with food colouring.

Rainbow paper

 Aim: To separate colours by using the process of chromatography                                                      Definition: Chromatography is a method of separating out materials from a mixture using a liquid.

Materials:

1 boiling tube

2 Pen marker

3 water

4 filter paper

5 scissors

6 test tube stand

7 ruler

8 pencil

Steps:

1. Cut up the filter paper into strips ready to write on with felt pens.

2. Rule a line 1cm from the bottom of the paper. 

3. put 8ml of water into the bottom of the boiling tube

4. draw two coloured pen dots on the pencil line

5. drop the paper strip into the boiling tube and once it is touching the water at the bottom you can crease the top of the paper over.

6.  watch, take 2 photos and observe the chromatography 

Conclusion:

What colours changed the most: green

How many new colours did i see? none

Wich colour travelled further est green

Chromatography

 Chromatography is a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates.

Aim: To separate the colours from the skittles by using chromatography.

Materials:

1. 6 skittles

2. water

3. petri dish

4. beaker

Process:

Step 1: Get your equipment set up ready to pour 50mls of water into the petri dish with skittles

Step 2: Place the skittles into the petri dish around the edges

Step 3: Pour 50mls water gently into the middle of the petri dish

step 4: Watch as the water removes the dye from the skittles. See which colour reaches the middle fastes

Osmosis - gummy bears

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

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

I am predicting that the gummy bears will grow in the liquids

Equipment:

three solutions - water, sugar and salt

four gummy bears of the same colour

two dishes

marker pen

Electronic balance

measuring cylinder

beaker

Solvent	dry	wet
Water	Red 2.46	5.94
Salt water	Clear 2.48	3.90
Sugar water	Yellow 2.45nu	6.01

 Findings:

The water that was included in the first gummy bear dish made the gummy bear change from a dry weight of 2.46 to a wet weight of 5.94. The difference between the two weights was 3.48. This means that the gummy bear absorbed 3.48 grams of water though the process of osmosis. Te salt water gummy bear dish has a change from a dry weight of 2.48 and a wet weight of 3.90 that mean the different's was 1.92 grams. Lastly we did one last one with sugar water. When the bear was dry it was 2.45 gram and when it was wet it was 6.01 the difference was 3.56. 

Canterbury mas flood

The floods that have been going on for about 4 days  have caused a tragic event.  Farms have been ruined and some animals drowned. This bad amount of rain only happens about 100 years! The rain has has made the Waimakariri River and the Ashley River to flood and caused bridges to collapse. The Ashburton bridge slumped and now its flooded. Did you suffer from the flooding?

Hands on fire

 Aim:

To safely light hands on fire

1. when your hands are on fire make a iron man posture to put it out

2. when your hands are on fire don't throw your hands around the room

3.you should have goggles to protect your eyes

4. you need a fire extinguisher in case it goes wrong 

Safety goggles

extinguisher

tie hair back

listen to the teacher

Equipment:

1. detergent

2. water hose

3. tray

4.gas

5.lighter

Instructions:

1 collect your equipment

2.put some water into the the tray

3. squirt some detergent into the tray

4. put on your safety glasses

5. tie up hair

6. take off any 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 frount of your face whith your arms locked