Monday, June 13, 2011

Clifford Comes to the Book Fair

Clifford the Bid Red Dog!!!
This week is Scholastic Book Fair in our school library.
This afternoon Clifford came over to our class and invited us to go and take a look at the book fair.
There are hundreds of amazing books to look at and choose from.
Lots of us chose to get our photo taken with Clifford.
Look out Rylee!!!!!
and Kate - our school secretary.

Sunday, June 12, 2011

Kitchen Chemistry in the Lab!

This morning we had a very special treat.

We visited Mrs Lilley's Science Lab and she took us for an amazing lesson about 'Solids, Liquids and Gases'.

She demonstrated experiments about fizzing and popping and then we were able to carry out some of our own experiments.

We had a wonderful time, and learnt a LOT!!!

By the time we got back to class, we were POPPING and FIZZING!!!

Check out all of our experiments, photos and videos right here on the BLOG.Thanks, also, to Alana - Mrs Lilley's helpful assistant.

Mini Poppers - Explosive Fun!

If you want to make an explosion then you should try 'Mini Poppers'.
Take the lid of a small film cannister and pour in some vinegar.
Then add baking soda and put the lid back on the cannister as quickly as you can.
The solids and liquid cause a reaction that cause the lid to explode off the cannister.
One of our explosions hit the roof!!! It was wet with the baking soda and vinegar.
It makes a loud popping sound as the lid pops of the cannister.
If your explosion doesn't happen try again, make sure you have the lid on properly, but not too tightly..
Explanation written by Blaize, Chaleece, and William

Popping Popcorn

Who ever thought we could make popcorn in a boiling tube?
Mrs Lilley began by heating a bit of cooking oil in the boiling tube, over a bunsen burner. She lit the gas that was coming out of the bunsen burner which made a flame.
When the oil was hot she put put three popcorn kernels into the oil, and continued to heat them over the flame.
After a few seconds over the heat the popcorn began to pop.
Mrs Lilley explained that the kernel was a small hard shell, filled with the white fluffy texture. When it was heated it began to get excited and move around very fast.
The popping of the popcorn was the kernel turning from a solid, to a liquid to a gas and back to solid again, but the reactions happens so quickly that it turns itself inside out.
She demonstrated this for us, using cotton balls.
You can not eat the popcorn that has been popped in a boiling tube, but it was certainly fun to watch.
Explanation written by Jaxon, Alex, Mac and Lucy.

Foaming at the Mouth - Sherbet

Does anyone want a fizzing treat? Well, let us tell you how to make sherbet.
First of all you need to get some baking soda, icing sugar and some citric acid. You also need a paper bag, straws, spoons and paper cups. These are used when you are mixing and making your sherbet.
Take your paper cup and tip in some icing sugar, then add some baking soda and stir. After you have stirred add the citric acid and mix them well, squishing all of the lumps against the side of the cup, until they are gone.
After that you need to get the paper bag and tip the contents from the cup into the paper bag. (If you want to you could share the mixture between two bags.)
After you've put the contents of the cup into the paper bag, put a straw into the bag and if you want to you can staple the top of the bag to keep the sherbet in.
Finally, you can taste the sherbet, by sucking it up the straw. Try keeping the sherbet on your tongue to see the fizzy reaction, when the ingredients get wet.
If you get a big bit of sherbet in your mouth your mouth will get filled with foam!!!
When the sherbet goes into your mouth it is a solid.
When it gets wet on your tongue it begins to melt and turns to a liquid.
That is why it starts to fizz.
This is a fun party trick/treat and it is also a great way to learn about fizzing.
Explanation written by Izack, Emma & Jessica