Hot Air Balloons

Hot air balloons were around in the 1700s. The first hot air balloon ever was built in France, 1783. The first passengers were a sheep, a duck and a rooster. People back then were afraid of heights.

Eventually, in August, the first human passengers boarded the hot air balloon in France, the same location where the first balloon was built.

In 1809, a balloonist named Blanchard crossed the English Channel successfully. Unfortunately, he died because of a balloon accident and crash-landed somewhere near France.

Forty years later, Austria had a use of the hot air balloon: aerial bombing. They were defending Venice from German attack.

Hot air balloons have an ‘envelope’ and a ‘gondola’. The envelope expands thanks to a burner under the the hole and above the gondola. Hot air expands in the envelope. Hot air is lighter than cold air, so it takes up a lot of space. When the envelope rises, it pulls the gondola with it.

By Matthew C

Photo by Adam Sparks on Flickr

Road Safety with Constable Chrystal

Today Constable Chrystal came to talk about a pressing issue. Road safety. It seems that us Epping Heights students and parents are not being careful enough around roads! So Constable Chrystal came to tell us where to cross the road and more importantly where not to cross the road. For example it is not safe to cross near two parked cars, bushes and anything that can obstruct your view of cars and the cars view of you. In fact it is not even safe for you to run across a pedestrian crossing when the light is blinking red and I bet you have done that before. We also found out that you are never too old to hold hands with your parents when you cross the road. We learned to follow the LLT(Look Listen Think) rule before we cross the road. Next time I cross a road I will be more careful. How about you?

Harmony day – Chinese celebration

 

One of the performances we saw on Harmony Day was a Chinese art form. First there was an impressive traditional river dance performed so expertly that we couldn’t take our eyes off her…

. image_20150319202914_t

Then just when we thought it was over, a man came on stage and said he was going to do something not so traditional. Magic!  He said “tedasurpersupus!” and performed a series of mind-boggling tricks that even I couldn’t comprehend.

image_20150319202921_t

The magic performance marked the end of our Chinese celebration

 

The effect of temperature on gasses

In this science lesson, we learned all about the effect of temperature on gasses. We did an experiment in which we put a balloon on the lid of a bottle and found that putting the bottle in hot water made it inflate and putting it in freezing cold water sucked the balloon in.

img_3961_t img_3962_t

So how did this happen? No, it’s not magic. You see when a gas becomes hot, it expands. This inflates the balloon. And when a gas cools down, it contracts. This causes a vacuum and the balloon is sucked inside the bottle.

 

 

Chinese New Year 2015

Its Chinese new year everybody! And apparently the city wants everybody to knowDSC_0282DSC_0289

From dazzling lanterns to terracotta warriors……. This Chinese New Year has it all !

DSC_0285

DSC_0271

 

 

DSC_0283DSC_0277DSC_0297DSC_0300

(pictures taken by my dad)

 

And interestingly this is the lucky year for anybody out there who is 11(basically most of year 6) for this, is the year of the sheep.

green_sheep_3

(picture by: openclipart.org/detail/211942/chinese-new-year-green-sheep-by-dimalique-211942)