Hokey Pokey Popcorn Crunch #3

Food Science

Today we have been doing some food science to learn about the science behind food.

At the start we did the work on the computer to learn about the science from the videos that Mrs Hyslop sent Hugh and Hugh sent everyone else in the group.

The bag with less vinegar puffed up less because it made less Co2 (carbon dioxide) we got this from ‘Sick Science, CO2 Sandwich’ and the piece I learnt the most from the videos was the popcorn

The hard shell splits because of the pressure of the heated water, then the expansion works like a muscle, vaulting the kernel into the air but the cool thing is that it is the vapour that makes the pop sound.

Written By Vaughan

Video Made By Vaughan, Hugh and Antonio.  

Hokey Pokey Popcorn Crunch

10.9.15

Today at school we are learning the science behind food. The food we are making is hokey pokey popcorn crunch. We got the recipe from New Worlds mini shops. One of the things we learnt was that the popping of the popcorn was caused by heat putting pressure on the kernel, causing it to crack open. The vapour is what makes the popping sound. Some science we learnt from the hokey pokey is that the water and the syrup take a slight change of the mixture burning because most of the energy into the evaporating molecules. 

Lucy

                            

Hokey Pokey Popcorn Crunch #2

Today we did some science and at the same time we made hokey pokey popcorn crunch. It was really fun and amazing because we learnt how popcorn pops and why it jumps up in the air. Now if your wondering it does pop well the popcorn has moisture inside of it and when it gets heated up the moisture expands so much that it pops the shell of the kernels, when the moisture escapes out of the kernel it makes a popping sound and it has such force that it sends it flying up in the air and turns it inside out. Once we had taken all of the kernels that hadn't popped we poured hokey pokey that hadn't set all over the popcorn. It was really fun because we get to eat it and I'm sure it will be delicious.

By Macleod

 

Visit from a Surgeon

Mr Panting comes to school

Today (Monday 24th August) Mr Panting came to school, he was a orthopedic surgeon but is now retired. We learnt about the body and bone breaks. We also learnt how he become a surgeon and how he was good at math top of the class.
Facts we learnt:

• Did you know that when a bone breaks it bleeds, this makes the bone heal.
• One of the most common bones to break is your collarbone.
• Orthopedic surgeon stands for straight children.
• It takes nearly 15 years to become a qualified orthopedic surgeon.
• The smallest bone is in your wrist
• The femur is the longest bone in your body
• Breaks in the joints are harder to fix than a normal break
• Some breaks may leave long-term swelling but it does disappear after a while

This is Keeley's Nan's hip

This is a metal hip joint that Keeley's Nan will now have

School Swimming

7/8/15

Today we did school swimming there are many different groups that are working on similar things like backstroke, freestyle, stream line and breaststroke. 

School swimming is an occasion that only occurs for a week twice a year. All of the children love it, they enjoy being able to swim together as well as knowing that learning these skills they will be safe if anything bad happens like a boating accident. The helpers are enjoying it too, being able to help children develop good swimming skills. 

The support group has also got a professional swim coach to come and help people to swim her name is Mrs Mckinnel.

Written by Keeley

Kapa Haka

Kapa haka with Miss Smith is pretty fun! Today we practised the waiata from the past two terms for Mrs Hyslop because she hasn't seen us perform anything. She thinks we are tu meke at the waiata!

Science with Henrica

On Tuesday Henrica came down to see us from the University of Otago and showed us some cool science experiments, the first one she showed us was one with coke and milk, she put some milk into a glass of budget coke and we left it till later. When we looked after we did our other experiment we saw that the acid in the coke had eaten all the calcium out of the milk.

We also did a fun spud gun experiment where we had a long straw and a skewer and and we stuck a piece of potato in each end and then pushed one end up the straw to shoot the front piece out. This happened because of the air pressure that built up in the straw and the friction on the pieces of potato. 

After we finished we talked about taking our results and making tables and graphs to record what we found out, then we had to scramble around the tennis court to find the pieces the birds hadn't got, so they wouldn't grow into potato plants on the turf. 

We all thought our experiments were really fun, and we are now thinking of doing a follow up spud gun experiment to finish.

Holly

Science Words