Does The Water Stay There?

How Does It Happen?

Bucket Experiment

On Tuesday Hoiho class did Jacob's Wonder Brick. The Wonder was "How does water stay in a bucket when you swing it around?" First we got some people to swing the bucket around with the water in it.

Patrick and Aria got a bit wet because the bucket hit their leg when they were swinging it around.

The water stays in the bucket because the water swinging around in a circle gets a force, which makes the water want to fly outwards. If you swing the bucket around fast enough this force will be greater than the force of gravity so it won’t spill.

By Lawson and Sam

The amazing water and bucket trick!

On Tuesday, Hoiho went outside to do a "bucket" experiment. We filled the bucket up about half way with water, and if you spin the bucket around your head so your arm just touches your ear, the water will not fall out! 

The water stayed in the bucket because of centrifugal force. The bucket is what stops the water from flying outwards. Without the centrifugal force, you would expect for the water to fall out of the bucket because of gravity!

(Phew, thank goodness for centrifugal force!) But if you fill it to the brim, some of the water will come out while you are getting it up to speed!

By Finn, Patrick, and Josh.  

Learning About Area

Learning about Perimeter or Peri Meter

They're Growing

After two weeks the beans have grown to between 30 and 40 cm and they have started climbing up the poles!

More Curious Cove Camp

Camp 2 on PhotoPeach

Curious Cove Camp

Curious Cove Camp 2013 on PhotoPeach

Jacob's Lacebark Pic Collage

RIMU

Cabbage Tree by Connor

Manuka

The beans root have grown from 52mm to 102mm to 185mm

Our beans

Native trees

New Zealand Christmas Tree

Pohutukawa by Bridget

Ben and Caleb's Pohutukawa Pic Collage

David's Pohutukawa pic collage

Pohutukawa Trees

Sent from my iPad

Pohutukawa

Sent from my iPad

Join In

Join In The Fun Time on PhotoPeach

Helpful Halving and Doubling

Zumba Fun

Zumba Time on PhotoPeach

Resisting Gravity

Flying? No, Parachuting on PhotoPeach

Floating and Sinking

Does It Float?

Multiplication Strategy

Multiplying by Tens

Multiplication using Skip Counting

Multiplying by Skip Counting

Touch Rugby With Garin

Touch Coaching With Garin on PhotoPeach

Book Week Friday Fun

Book Week Friday on PhotoPeach

Reading To The Juniors

Library Bookweek Reading on PhotoPeach

Multiplication The Easy Way

More About Pulleys and The Extra Hand

Lots of machines have pulleys in them for example a cage that pulls you across a river.                           David

You use pulleys when you are sailing. It makes it easier to pull the sails up. You also use pulleys on cranes to lift up heavy objects like big containers. Also on flying foxes you connect the pulley to the wire. And with flags you use the pulley to raise the flag.                      Ben

You can find pulleys on cranes, garbage trucks with claws, big boats, sail boats, ski lifts, drawbridges, flag poles and bikes.              Margeaux

Today we had a big argument about where the weight goes when you pull the weight up with the pulley. First Ben said half the weight goes to the beam. It does, so he was right. The beam acts like another hand.                        Patrick

We learned that the beam supported half of the weight and our hands supported the other half of the weight.                    Josh

The weight will be half the weight that it actually is. This is because the beam is acting like another person so it is halving the weight between you and the beam.   Margeaux

Same Force

Without a pulley two people lifting a weight have to both lift with the same force for the scales to read the same. If one lifts harder than the other their scales will read higher.

With a pulley on the lifting string the pulley will make sure that both people lift with the same force.

Addition To Large Numbers

Subtraction From Large Numbers

A Special Opportunity

Some Makos came to train us.

The Nearest Ten

Subtracting Using Basic Facts

Dome Strength

We brainstormed strong 3D shapes on the whiteboard . We said that an arch was a strong shape, then we talked about where your weight would go if we stood on an arch bridge. We had a lot of ideas about where our weight would go but we found out that it went down the curved sides towards the ground.Then we demonstrated with our arms how strong a dome is with Jonty and Mrs Bryant pushing the top of our hands down. It was fun experimenting with domes.

By Ruby and Kimberly

On Wednesday 4th Hoiho class did a science experiment. What we did is we got four empty three quarter eggshells. We put two eggshells close together at one end and two at the other end in a rectangle shape. Then we started to put blocks on.  

By Margeaux 

Some people thought that the eggshells wouldn’t hold three blocks. We stacked the third block on the empty 3/4 eggshells. Finn, Jacob, David

We put on the 4th block and there was a loud CRACK! Everyone yelled and I said "That was close". And one eggshell was cracked now. By Patrick 

Then we placed the tenth block on top of the ninth block. And the eggs didn’t break. Caleb

On the 14th block we heard a crack in an eggshell and it collapsed like the twin towers. By Margeaux

On Thursday we were writing like scientists about doing a forces experiment. First we did the title then the materials. After that we did the hypothesis. Then we did the procedures which took a while. Last of all we did the conclusion.

By Lawson and Sam

Groupings to 1000

Lifting With A Pulley

First my class saw Ruby using scales with a metal lathe plate hanging on the bottom of the scales then her face turned red.

Suddenly Mrs Bryant said, “You can put it down now”.

Then Ruby had a turn with the pulley. Mrs Bryant asked, “Is that easier?” Ruby replied, “Yes”.

Suddenly Mrs Bryant told me to have a go.                   David

Pulleys make it easier to lift things into the air. They are useful for lifting weights and heavy things. Today in class we were lifting a metal lathe plate with scales and a rope with a pulley to see which one was harder to lift. We found that it was harder with the scales. To get the lathe plate the same height as it was with the scales you need to pull the rope two times higher. Lawson

Lifting with the pulley is a lot easier than lifting with the scales. Because the scales just tell you the weight and the pulley is helping you to lift what ever you’re lifting. When you’re lifting the pulley lift it two times higher than the weight moves.                                                                Aria

Pulleys make it easier to pull things up. You have to pull it two times higher. Jonty

Fighting Gravity

Hoiho class watched as Josh jumped off a school chair. He said it was easy. When he tried  jumping back on the chair from the ground he said it was harder because he was fighting  gravity. 

The  Moon is going around the earth because of the gravity coming from the earth pulling the moon towards the centre of the earth. To show you some girls and some boys showed what it looks like  by making the moon and the earth. 

There is less gravity on the moon than on earth because the moon has less mass. We got eight people to be the earth and then four people to be the moon. 

We put the pin on the ground then we put a piece of wood on top of the pin. The pin held the piece of wood up. 

Kimberly stood on the piece of wood. Her weight made the pin go into the wood.