Gummy Bear Osmosis 2

 Kia ora, Today is another day of learning about Gummy Bear Osmosis this time we are going to be looking at how they have changed over the time period of a week, We are mostly looking at how much  water has been absorbed and what effect that had on the water and the gummy its self.

	Dry	Water	Salt water	Sugar water
Initial weight of Gummy Bear	5.81g	5.36g	5.73g	5.45g
Final weight of Gummy Bear	5.70g	6.52g	6.22g	6.05g
Weight difference	Lost 0.11g	Gain 1.16g	Gain 0.49g	Gain 0.60
Initial volume		40mL	40mL	40mL
Final volume		0mL	10mL	7mL
Volume difference		Lost 40mL	Lost 30mL	Lost 30mL

Discussion:

1. The normal water was transformed into the gummy bear the most.

2.The dry gummy bear lost 0.11 grams over a week.

3. The sugar water was diffused faster than the salt water.

Diffusion Meaning: Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an important process for living things: it is how substances move in and out of cells.

Gummy Bear Osmosis

Kia ora,Today we are learning about Gummy Bear Osmosis. 

 Aim: I want to find out what happens to Gummy Bears when we put them into different soluttons.

Prediction: I predict that they will disolve into the solutions.

 Equipment: 

1. 4x Gummy Bears of the same colour 

2. 2x Petri dishes 

3. Paper towels 

4. Marker pen
5. Water 

6. Sugar water 

7. Salt water 

 8. Electronic balance 

9. Beaker 

10. Safety glasess 

 

Instructions: 

1. Get your equipment. 

2. Put on your safety glasess. 

3. Using the marker pen, Write the name of the condition on the petri dish. Dry, Water, Salt water and Sugar water. 

4. Weigh the Gummy Bear And write the weight on the petri dish. 

5. Mesure 40ML of the solution and pour it into the petri dish.

Skittle art!

 Kia ora.

Today we are doing science and in science we are doing skittle art.

Aim: To use water to extract the dye from skittles using the process of chromatography.

Materials: 

1. Water.

2. Five skittles.

3.  Petri dish.

4. Beaker.

Process: 

Step 1. Place the skittles into the petri dish around the edges.

Step  2. Pour 50ml water gently into the middle of the petri dish.

Step 3. watch to see how fast the dye moves

Findings:

Colour	Tally	Number
Green		0
Yellow	I	1
Red	l l l l l l	6
Purple	I l	2
Orange	I	1

Chromatography

 Kia ora.

Aim: Is to separate colours by using the processes of Chromatography.

Materials: 

1. Paper strip (Chromatography paper).

2. Felt pens

3. Ruler

4. Water 

5. Test tube rack 

First we get paper strips and measure 1 Cm then draw a reasonable sized dot on the paper next we get a test tube and fill the bottom with water now put the test tube in a test tube rack and put half of the dot in the water fold the top of the paper over the edge of the test tube and watch it expand.

The colour that changed the most was Blue .

I can see nine new colours.

The colour that travelled the furthest was Blue.

Using a Bunsen burner

 Aim: To demonstrate how to heat a liquid inside a test tube.

Equipment: Bunsen Burner, Heatproof mat, Lighter, Test tube tongs, Safety glasses.

Method:

1. Light the Bunsen burner.

2. Fill your test tube to approximately 5ml water.

3. Turn the collar at the Bunsen so it is a blue  flame 

 4. Holding the test tube tongs, Tilt the test tube on a 45 degree angle and place the bottom of the test tube into the flame ensure that the mouth  of the rest tube is not pointing towards anyone.

5. Gently wave the test tube in and out of the flame, Remember you are trying to heat the liquid gently.

6. Once the water starts to gently bubble, Take it away from the flame. Carefully pour the hot water into the sink.

Wheels

 

Uses for the Wheel Over the Centuries	Date
First wheel used for pottery in Mesopotamia	4200-4000 BC
First wheeled vehicles, Europe and asia	3500-3350 BC
First 2 wheeled vehicles,Europe	3402-2800 BC
First know Wheel tracks, Germany	3420-3385 BC
Wheel invented independently, China	2800 BC
First spoked wheels, Turkey	2000 BC
First iron rims, Celtic chariots	800-450 BC
Wheels for spinning pottery and as water wheels, Nubia	400 BC
First Wheelbarrows in, China	50 - AD
First spinning wheel, China	1000 AD
First wheel barrows (outside of china), Europe	1170-1250 AD
Turnspit dog used to cook meat, Britain	1500-1800s AD
First “pleasure wheels”, Bulgaria	1600s AD
First Roller skates, Belgium	1743AD
First bicycle & first “kick” scooter, Germany	1817 AD
First pneumatic tire, Scotland	1847 AD
First wire-spoked wheels, France	1869 AD
First motor car & motor bike, Germany	1885 AD
First gas/petrol powered tractor, US	1892 AD

First Ferris wheel, USA	1893 AD
First skateboard, USA	1950s AD
First Segway, England	2001 AD

Music

Today we got to listen to songs and these are some of my favourites:

T.N.T

I put T.N.T because i grew up with it  and my mum LOVES ACDC

Bohemian rhapsody

I have chosen this song because its great and makes me happy. 

Don't give it up

I have this song on here because I think its good to be happy.

Athletics

In P.E for the last couple of weeks we have been practising for athletics day, I enjoyed high jump and sprints the most, I improved  the most in sprints and high jump. we have done Long jump, High jump, Sprints, Shot put, Discus and relay. wish me luck tomorrow for competitive.

thanks for listening,bye.

Hands on fire.

 Aim: i want to safely light my hands on fire. Before we do this activity we need to be aware of the safety features. 

In pairs you need to come up with a list of 5 safety items that need to be considered when doing this experiment.

1. Tie up long hair.

2.No food or drinks.

3.Wear safety glasses.

4.Know where the fire extinguisher is.

5.Must wear closed toe shoes.

Instructions 

1.Collect you equipment.

2.Put some water into the tray.

3.Squirt some detergent into  the water.

4.Put on safety glasses.

5.Tie up any long hair.

6. Take off 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.