Chromatography

Today we learnt what Chromatography and did a little experiment. 

What is Chromatography? Chromatography- the process of separating a mixture based on the pigments.

Pigments- Pigments can be separated based on their solubility. More soluble the pigment the higher they move with the water. The less soluble the lower they will stay on the chromatography paper.

AIM- To separate the different pigments from ink using chromatography
HYPOTHESIS- I think that it will change colour.
EQUIPMENT- Felt tip pen, filter paper strips, test tube, measuring cylinder, pencil.

Method-

1- Draw a line across the filter paper in pencil, 5cm from the bottom.
2- Draw a coloured dot in the centre of the line.
3- Measure out 10mL of water and place in the test tube.
4- Place the filter paper in the test tube and fold over the side. MAKE SURE THE PENCIL LINE/ DOT IS NOT IN THE WATER.
5- Wait for 5 minutes and observe the results

Science - concentration and dilution

Hi reader today in science we are learning about what is concentration and dilution. We are also making a little experiment 

Concentration - is a measure of how much solute has been dissolved into the solvent.

Dilution - Making something less concentrated.

Aim:  Carry out a serial dilution with potassium permanganate. 

Experiment: 

Equipment: A potassium permanganate crystal, six large test tubes, tweezers, a plastic transfer pipette, a test tubes rock. 10 ml. measuring cylinder.

Hypothesis: I think it will go change the water.

Method:

1. Place the six test tubes in a test rack. label the rack with numbers 1-6   
2.  Using the measuring cylinder, fill test tubes 1 with 10 ml. of water. fill the measuring test tubes with 5 ml. of water.
3. Using your tweezers, add a single cylinder of potassium permanganate to test tube 1.
4. Gently shake the test tube until the crystal has dissolved.
5. Using the transfer pipette, carefully 5 ml. from test tube 1 and pour it into test tube 2.
6. rinse the transfer pipette thoroughly to ensure that no purple solution remains.
7. Gently shake the test tube 2 and repeat the transfer process, transferring exactly 5 ml. of solution from test tube 2 to test tube 3.
8. rinse the pipette again and repeat the transfer process of test tube 4, 5 and 6.

Science ( BECOMING A MARTIAN by Clare Knighton )

Today we have been going writing and science. Today the work that we had to do was read the text that is on the hurumanu site. We had to answers some questions from the story and this is my work that I have done on the slides.

Science growing seedlings

Today we were working on our DLO for Science hurumanu. We had to grow a sunflower without soil and this is a image of it.
I made a slide to. It had question that my group had to answers.



This is the slide:      

Simple to complex sentences

Today we have been working on Simple to complex sentences for practising for wright assessment on Wednesdays to help improve our writing so the sentences are not boring.

Simple to complex sentences 

The dog ate.

The dog ate sadly. 

On Thursday the dog ate sadly.

On Thursday the dog ate outside on the grass sadly.

 On Thursday the dog ate outside on the grass in the ice cold sadly.

Science,

Past 2 week we have been doing science. The side show what we have done.

Science, hurumanu,

Definitions!!

Hi readers today I am going to be telling you about the document we did about definitions!
We got given 5 definitions then we had to say what it means.

here is mine:

hurumanu science-definition

1. Anemometer

Measures the speed of the wind, gas, or any current.

2. 
   Beaufort wind scale

Measures the wind speed

3. Python

It’s similar to a hurricane.

4. Monsoon

A Monsoon is a seasonal change in the direction of the prevailing, or strongest, winds of a region.

5. What is it when the weather is really nice then turns to hail fast?

forms when thunderstorm drafts are strong enough to carry water droplets well above the freezing level. It’s a Hailstone

I hope you enjoyed reading my blog, if you have any feedback or positive comments.

Please leave it in the comments. Bye!!

Hurumanu - Wind Power

Extreme weather

Measuring weather.

Definitions:

1.  Anemometer:
2. Beaufort wind scale:

MATERIALS   

1.   Sellotape  
2. pencil
3. pin
4. 2x sticks
5.   x4 cups
6. sticky note

STEPS

1. Sellotape both cups at the end of the sticks.
2. Sellotape the sticks together to make a cross.  
3. Pin the centre of the cross to the rubber of the pencil. 
4.  
5.   
6. 
   

Group Investigation.

Groups size: 5 
Roles:

• Timekeeper ( watch)

• Counter

• Recorder ( Chromebook or refill )

• Anemometer Manager ( Anemometer)

• Wind Manager

Instructions:

• Go to the measuring place and set up your wind gauge.
• Make sure everyone in your group is ready to start their roles.
• Record how many times it spins and record it in the table below.
• Count the number of spins in 15 seconds.
• Record it on your chart.

FINDINGS

	Place name on school grounds	Number of Spins in 15 seconds
1.	Field	20
2.	Old J Block site	15
3.	Grass hill in the quad	10
4.	Tennis Court gate	3

• USING A4 PAPER DRAW YOUR RESULTS ON A GRAPH.
• TAKE A PICTURE OF THE GRAPH AND UPLOAD IT TO YOUR BLOG

WHICH IS THE WINDEST AREA AND WHY?

WHICH IS THE CALMEST AREA AND WHY?

WHERE IS THE BEST PLACE ON LAND TO BUILD A WINDMILL?

1. The field is the windiest as the cars come past and make a lot of wind plus its a big space.
2. The Tennis court is the calmest as its all fenced off and there would be very little wind.
3. The best place to build a windmill would have to be the old J block site because people won't be over there most of the time and it's also out of the way of the children

CONCLUSION:

Wind

Beaufort Wind Scale

Beaufort Force	Wind Speed (KPH)	Spins	Indicators	Terms Used in NWS Forecasts
0	0-2	0	Calm; smoke rises vertically.	Calm
1	2-5	10	Shown by the direction of wind smoke drift, but not by wind vanes.	Light
2	6-12	40	The wind felt on face, leaves rustle; ordinary vanes moved by wind.	Light
3	13-20	80	Leaves and small twigs in constant motion; wind extends light flag.	Gentle
4	21-29	130	Raises dust and lose paper; small branches are moved.	Moderate
5	30-39	190	Small trees in leaf begin to sway; crested wavelets form on inland waters.	Fresh
6	40-50	250	Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.	Strong
7	51-61	320	Whole trees in motion; inconvenience felt walking against the wind.	Strong
8	62-74	390	Breaks twigs off trees; generally impedes progress.	Gale
9	75-87	470	Slight structural damage.	Gale
10	88-101	550	Seldom experienced inland; trees uprooted; considerable structural damage occurs.	Whole gale
11	102-116	640	Very rarely experienced inland; accompanied by widespread damage.	Whole gale
12	117 or more	730+	Very rarely experienced; accompanied by widespread damage.	Hurricane

Based on your findings what was the Wind Speed and the Beaufort Wind Force for each area.

	Spins per minute	Wind speed ( kph)	Beaufort Scale
Field	80	13-20	3
Old J Block site	60	6-12	2
Grass hill	40	6-12	2
Tennis Court Gate	12	2-5	1

CONCLUSION:

This week I learnt how to make a wind gauge.

we found out that in the field's wind speed is 13-20 kph.

we also found out that the old J blocks wind speed is 6-15 kph.