Maths - co- ordinate present worksheet

North pole news and Christmas post

Christmas Acrostic Poem

                CHRISTMAS

Cookies rest on a plate with a glass of milk, getting ready to be devoured.

“Ho, ho, ho,” says a jolly Santa while taking pictures with little children.

Roads are filled with lights and cheerful people.

Icing of different colours decorates yummy, detectable treats.
Santa’s sack is full of presents and amazing gifts.
Toy factories are creating inventive toys for Santa to deliver. 

Mistletoe fills the streets with love.
Advent calendars count down the days every morning with a little goodie to get you in the spirit.
Stockings are filled with appetising delicacies and toys to fiddle with.

By Mahika 

The Party Pobble 365. Make up a story based on a picture

 

As I buzzed around, glowing in the darkness, I saw that there was a party happening in the land of Oz.  No humans were invited. It was bliss, my fellow fireflies, who were the emcees, had gotten ready. The lanterns were lit and shining luminously in the darkness, and the vines were hanging down from the tree graciously, swaying through the cool breeze. The party looked very mystical and mysterious, as I hoped it would be. 

As the party guests, fireflies and flying animals were starting to pour in, they found a seat close to the stage.  They were hoping to see all of the performances and speeches that were going to happen later in the night. That evening was Mrs Tenorio’s birthday and she was turning 50! All the guests that had come were hiding, ready to fly out in surprise.  Mrs Tenorio was my year 10 teacher when I was in Lake Parama High. The funny thing is that she doesn’t know a THING about this party!! Her best friend, Bertha, told her to meet her here in the park for evening tea and it sure fooled her!

Mrs Tenorio is a firefly and she has a golden, glowing rear end, black coloured hips, a rich black neck and body and gorgeous transparent wings.  Here she comes, THREE, TWO, ONE SURPRISE!!!! “WHAT! Who’s this for?” exclaimed Mrs Tenorio.  

“YOU!! HAPPY BIRTHDAY!!! Today we are celebrating your 50th birthday!”  Mrs Tenorio pondered for a while before saying “Wait a minute, how do you know my age! You know you aren’t supposed to know lady animal age!” 

“Well, Bertha told us since she IS your best friend right?” I said half teasing.  

“Well yes, but is she here?”  boasted Mrs Tenorio.  

“Sadly no, she got a cold at the last minute. JUST KIDDING!! Come out, Bertha!” 

Bertha jumped out with a ginormous grin on her face “Happy birthday!”  Ok, now we are finally going to start the show. Firstly, we are going to sta…… everybody RUN!!!

All the partygoers and I ran frantically because we heard frightening footsteps on the muddy and leafy ground. The head firefly said to run and hide. Next, the terrifying creature stepped his big foot into our party area, just as the fun was going to begin! The foreign creature came in and trashed our party uninvited.  He looked like a HUMAN! It looked like he was carrying a lantern crossed with a jar and there was something inside the jar that bothered me. After being puzzled for a few minutes, I realised inside was MRS TENORIO!! It seemed that she had been captured. I was shocked! I HAD to save her! It was her birthday after all.

Well, I was flying over to the radiant lantern and making a buzzing sound. The tall, skinny man who looked like a scientist, didn’t even hear me so I went up to his cheek and said, “Hey, you have my teacher!” And guess what, he didn’t even hear me!!   How deaf can humans be these days?! Aarrgh! So I went up to his eye and turned on my incandescent bottom and hit him! Score! Mrs Tenorio is gonna regret giving me F’s, fails, on my assignments after I save her! Well, somehow I got stuck in the deaf person’s EYE!! Luckily, he hectically shook me out! PHEW! He then ran far, far away! 

As I was so eager to get my yr 10 teacher back, I followed the being until he reached what looked like a door, with a keypad!  How was I going to save Mrs Tenorio now!? But, because I was a smart little bug, I quickly thought of a plan, ducked behind a tree and turned off my fluorescent rear.  Then I watched ever so closely as he finished entering the keypad and as soon as the door opened, I shot and made a runner as I skimmed through the heavy metal door and entered A SECRET SCIENCE LAB! Inside was a whole bunch of test tubes, goops, gunks and sciency materials and the scariest part, INSECTS! What do scientists use these days! l I followed him deeper into this bunker sort of a thing and then he appeared, trudging to a wooden desk.  He took my teacher out of the specimen jar and laid her flat on the desk. He then got a microscope and studied my beloved teacher from back to front. I heard him say, “ Oh well, she just isn’t right! Who is this firefly?”  

“How dare you call my teacher not right!!” I whispered to myself. Then he put her in the lantern and walked back to the door.  Next, he swung it open and slammed it behind him. He walked gradually back to the party and let her go! “YAYYY!!!!! Where were you, Rose?” Asked Bertha. 

“Some dude took me, captured me and put me into a lantern. He took me to his secret lair and examined me, then put me back in the lantern and brought me back here. So that’s what happened.” 

“It feels soo good to have you back!” Bertha replied.

The party went on and Rose had a wonderful birthday. SHE LOVED IT!!   

By Mahika

Rainbow Water Density Tower experiment

Rainbow Water Density Tower 

Aim - To observe how substances with different densities interact

Materials

Glasses - 1 per group

Food colouring (red, blue, green and yellow - you can make purple and orange by combining two colours)

Sugar or Salt (and measuring spoon)

Measuring cup - 1 per colour (you can have 6 colours to work with, or limit it to 4 colours)

Measuring syringes 

Water (warm water from a tap or kettle)

Plastic spoons to mix the sugar and food colouring in the water

Pots of water to rinse syringes between each colour

Plastic plates or trays to protect the table from sticky sugar water

Results

The colours were not mixing only when we first since we squeezed it in too fast. The second time we put the colours in carefully and it WORKED! The layers looked like a rainbow.

Steps

Firstly, get a jug of hot water and 4 measuring cups. Put 400mls of water into the measuring cup. In one measuring cup put 2 tablespoons of sugar. In the second measuring cup put in 4 tablespoons of sugar, in the next put in 6 tablespoons and lastly in the last cup put in 8 tablespoons of water. Stir them all up till they almost look like normal water. In each cup, we put some food colouring. In water with less sugar but more food colour and in cups that have more. Lastly, take a syringe and fill it up to 20ml then carefully drop it in making sure to wash out the syringe before you use a different colour. 

Explanation

 All of the colours had different amounts of sugar, causing the colours to have different densities and refuse to mix together. Since it won’t mix it instead makes a tower of all the colours from the first colour(the one with the most density) to the last colour laying on the top( the one with lesser density).

Ice Fishing experiment

Ice Fishing 

http://www.sciencefun.org/kidszone/experiments/ice-fishing/

Aim/Purpose:

To see how salt can affect ice or react with ice

Materials 

• Small paper cups, bowl or an ice cube tray
• Glass of water
• String (yarn or kite string works great)
• Small stick
• Salt

Steps/Method:

1. Fill the cup or tray up with water and place it in the freezer.  You can also use ice cubes from your freezer and skip this step.
2. When the water is frozen, remove the ice from the cup or tray.
3. Put the ice in the glass or bowl of water. The cube will bob up and down in the water and then float on the top.
4. Place one end of the string from the fishing pole on top of the ice cube and sprinkle salt on the ice where the string is touching. Watch as the water melts slightly and refreezes.
5. After about 10 seconds, carefully lift the ice cube out of the water with the fishing pole. You caught a fish (ice)!

My results:

Salt - The string stuck really well to the ice and pulled the ice cubes up out of the water

Sugar - The string didn’t stick to the ice cubes and none of them were pulled up out of the water.  Some people started to see the ice cubes stick - but it then failed after that.

Flour - The ice didn’t stick to the string at all 

Pepper - The ice didn’t stick to the string at all 

More salt than normal - The ice still got picked up by the string

Changing the variables

Don’t wet the string beforehand 

Use only a little salt

Using lots of salt 

Try to catch the ice using sugar instead of salt 

Try to catch the ice using pepper instead of salt

Try to catch the ice using flour instead of salt

Change the time period that you wait before trying to pick up the string.

Explanation - Why does it work?

The salt you sprinkle on the ice cube lowers its freezing temperature and the ice cube can’t get any colder than it already is, so it starts to melt. A little pool of water forms on top of the ice cube and the string sinks into it. As the ice cube melts, it decreases the salt/water mixture in the little pool; the freezing point starts to go back up again. The ice refreezes, trapping the string. As soon as the ice cube hardens, you can raise it by lifting the string. All this happens very quickly of course.

Purifying water experiment

Water Filter Experiment 

Aim/ Purpose - 

To filter or clean water using a number of materials 

How to clean/filter water - making it clean

Materials -

Sand, 

gravel, 

activated charcoal, 

cotton wool, 

plastic bottles cut in half,

bucket of dirty water (can make the water dirty with soil or whatever from outside)

Predictions - What is going to work best?  What steps/process and in what order - why?

Cotton wool at the bottom - It will absorb the smaller dirt particles from the dirty water

2nd layer up - gravel - The gravel will grab onto the dirty parts and the clean water will drip off the gravel through the gaps.

Second Layer Up  - Charcoal - Second smallest material, can absorb the things not cleared by the bigger materials.

Third Layer Up - Sand - Turns hard when it’s wet - Take all the bigger dirt particles 

Top layer - Gravel - All the hugest dirt particles out first.  

Method/Steps:

1. Cotton wool
2. Sand
3. Gravel
4. Charcoal
5. And 1 piece of cotton
6. water 

Explanation - How did it work?

The gravel takes all the large bits out of the water

Then the sand to take and pieces that have passed the gravel and the sand hardens.

The charcoal absorbs tiny pieces of dirt and sand 

The cotton wool absorbs water

Why is it important for cities/towns etc to purify and clean the water before it gets to peoples’ homes?

In New Zealand cities and towns, clean water is pumped straight into homes. We have systems in place to monitor how safe our water is for drinking, and to manage what happens when there is an increased risk of illness. It also catches Algae bacteria.

https://science.lovetoknow.com/science-fair-projects/homemade-water-filter-science-project

https://www.youtube.com/watch?v=tPP_Yn2

https://www.homesciencetools.com/article/

This is the bubble bomb experiment

Inquiry experiment  

Aim/Purpose : 

To see what happens when baking soda and vinegar mix/combine 

To see the reaction that occurs when these two substances are mixed

Prediction - What do we think is going to happen:

We think it will explode/ It’s going to blow up

The ziplock bag will pop open and the liquid will spill out

It could fizz up 

The bag might fill up with air 

Fizz up like soda when shaken

The air pressure created inside the bag will cause the seal on the bag to pop open

Steps:     

1.  Open up a paper towel on a flat surface
2. Put 4 leveled teaspoons of baking soda in the center of the paper towel
3. Wrap up the baking soda in the paper towel like a package - Keep the baking soda concentrated in the middle of the paper towel
4. Tape down your package of baking soda with a piece of masking tape so that everything stays in place
5. Open the vinegar and pour it into a cup - until the cup is half full
6. Then open a zip lock bag and pour the vinegar into it
7. Hold the package inside the zip lock bag, making sure it doesn’t yet make contact with the vinegar - then zip up the bag - making sure that it is completely closed
8. Let the package of baking soda drop into the vinegar and shake the bag up a little so that they start to mix
9. Observe what happens

https://www.youtube.com/watch?v=FlmsiPxEuK0

Materials/equipment:

• Baking Soda  (4 x tablespoons) 
• Vinegar (half a cup)
• Ziploc sandwich bags 
• Plastic spoon
• Paper towel 
• Masking tape

The Result - What did we see happen?

The bag popped because of all the pressure and couldn’t cope anymore.

Variables - How could we change the variables?

Predict what might happen if we change the variables 

Experiment - Were our predictions accurate?

Put 5 or more teaspoons of baking soda into the package - Bigger explosion/more powerful 

If there is too much baking soda and not enough vinegar, it may not work.

It took too long to absorb the baking soda but it did pop! But took a long time

Put more vinegar  - Bigger explosion/not pop

The pop wasn’t that big!  

Way less baking soda and wrapped in more paper towels - nothing - it would take a longer time to see a reaction 

Baking soda - With no package surrounding it - The reaction would happen instantly and uncontrollably 

Science - Why did it happen?  Here are some websites to look at…. You may be able to find other websites too!

Baking soda and vinegar react with each other because they exchange atoms. In this reaction, baking soda acts as a base and takes a proton from vinegar, which is an acid. The reaction releases gas because when the baking soda receives the proton, it transforms into water and carbon dioxide. 

https://littlebinsforlittlehands.com/balloon-baking-soda-vinegar-experiment-kids/

https://www.science-sparks.com/amazing-baking-soda-experiments/

https://www.wonderopolis.org/wonder/what-happens-when-you-mix-vinegar-and-baking-soda

https://carrotsareorange.com/baking-soda-vinegar-reaction-experiment