25 June 2014
Pumpkin Painting
Our acrylic paintings are finished and glued onto black paper for impact. They look amazing ! And today we sketched and painted with watercolours. How different will they look ?
Cross Country Stars in Room 8
We are so proud of Greta, Harry and Jack who went to the interzones for cross country. Greta came 2nd, Harry 5th and Jack 13th! What stars they are.
Greta and Harry have also qualified for the regionals in Waikanae. Good job ! Greta also was presented with a medal for being in the top 3.
Greta and Harry have also qualified for the regionals in Waikanae. Good job ! Greta also was presented with a medal for being in the top 3.
19 June 2014
Magic Melting Marshmallows
What happens when you microwave marshmallows for different times? For this experiment we used the skills of observation, touch and smell. Look at the pictures of what happened. The marshmallows were heated for 10, 20, 30 and 50 seconds.
The marshmallow puffed up when heated and deflated when cooling.The change was permanent.
What was going on?
Marshmallows are mostly sugar and water wrapped around a bunch of air bubbles. When you cook marshmallows in your microwave oven, several things happen at once. The microwave makes the water molecules vibrate very quickly—which makes the water heat up. The hot water warms the sugar, which softens a little. The hot water also warms the air bubbles. When you warm air in a closed container, the gas molecules move around faster and push harder against the walls of the container. As the air in the bubbles warms up, the air molecules bounce around faster and faster and push harder against the bubble walls. Since the sugar walls are warm and soft, the bubbles expand, and the marshmallow puffs up. If it puffs up too much, some air bubbles burst, and the marshmallow deflates like a popped balloon. When you take the marshmallow out of the microwave and it cools off, the bubbles shrink and the sugar hardens again. When the microwave marshmallow cools, it’s dry and crunchy. We think that’s because some of the water in the marshmallow evaporates when the marshmallow is hot. If you cook your marshmallow for too long, it turns brown or black inside. That happens when the sugar gets so hot that it starts to burn.
The marshmallow puffed up when heated and deflated when cooling.The change was permanent.
What was going on?
Marshmallows are mostly sugar and water wrapped around a bunch of air bubbles. When you cook marshmallows in your microwave oven, several things happen at once. The microwave makes the water molecules vibrate very quickly—which makes the water heat up. The hot water warms the sugar, which softens a little. The hot water also warms the air bubbles. When you warm air in a closed container, the gas molecules move around faster and push harder against the walls of the container. As the air in the bubbles warms up, the air molecules bounce around faster and faster and push harder against the bubble walls. Since the sugar walls are warm and soft, the bubbles expand, and the marshmallow puffs up. If it puffs up too much, some air bubbles burst, and the marshmallow deflates like a popped balloon. When you take the marshmallow out of the microwave and it cools off, the bubbles shrink and the sugar hardens again. When the microwave marshmallow cools, it’s dry and crunchy. We think that’s because some of the water in the marshmallow evaporates when the marshmallow is hot. If you cook your marshmallow for too long, it turns brown or black inside. That happens when the sugar gets so hot that it starts to burn.
FIFA World Cup Homework
This week the homework challenge was to find out about the FIFA World Cup using the 5 ws. Some people made a poster. Dylan covered a box with his information. We shared them today.
Amazing Pancakes !
If you are looking for a fun activity in the weekend or holidays then check out this Dad and his family making pancakes as you have never seen them before.Why not try yourself.
16 June 2014
Painting a Pumpkin.
Mrs Chao got 2 very cute pumpkins in Levin They were too cute to eat so we are sketching and painting them.One is called Stalky and the other Curly. Come into our room and meet them.
Two Heads are Better than One.
Going to Decimal Land!
The Room 8 Maths class have been learning about and making decimal numbers from place value blocks. They are very proud of themselves .
5 June 2014
Making Butter.
What happens when you shake cream in a jar for about 8 minutes? You make butter!
What can you do with butter? Eat it on a cracker of course! Yummy !
What can you do with butter? Eat it on a cracker of course! Yummy !
More Dancing Raisins
Room 8 followed the instructions and made some dancing raisins of our own.
So why do they dance ?
Raisins are denser than the liquid in the lemonade, so initially they sink to the bottom of the glass. The carbonated soft drink releases carbon dioxide bubbles. When these bubbles stick to the rough surface of a raisin, the raisin is lifted because of the increase in buoyancy. When the raisin reaches the surface, the bubbles pop, and the carbon dioxide gas escapes into the air. This causes the raisin to lose buoyancy and sink. This rising and sinking of the raisins continues until most of the carbon dioxide has escaped, and the soda goes flat. Over time the raisin gets soggy and becomes too heavy to rise to the surface.
So why do they dance ?
Raisins are denser than the liquid in the lemonade, so initially they sink to the bottom of the glass. The carbonated soft drink releases carbon dioxide bubbles. When these bubbles stick to the rough surface of a raisin, the raisin is lifted because of the increase in buoyancy. When the raisin reaches the surface, the bubbles pop, and the carbon dioxide gas escapes into the air. This causes the raisin to lose buoyancy and sink. This rising and sinking of the raisins continues until most of the carbon dioxide has escaped, and the soda goes flat. Over time the raisin gets soggy and becomes too heavy to rise to the surface.
4 June 2014
Sonny comes to Visit
Last week Ana's dog Sonny came for a visit.He is a Cavalier King Charles Spaniel .Sonny was so friendly with everyone. Ana showed us all the tricks he can do like roll over and shake hands. He was a wonderful visitor.
3 June 2014
2 June 2014
Procedure Reading
We were focusing on procedures a few weeks ago.We read and followed lots of procedures to make a stretchy net , a cat puppet, a little house and letter envelope.
We could read and identify the elements but actually doing what the instructions said to do to make the thing was a challenge. Luckily we had some expert makers in the class to help.The thing we all needed was patience!
We are using our skills to read and write a procedure which flows on to our science topic.
We could read and identify the elements but actually doing what the instructions said to do to make the thing was a challenge. Luckily we had some expert makers in the class to help.The thing we all needed was patience!
We are using our skills to read and write a procedure which flows on to our science topic.
Rocket Week
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