Monday, September 13, 2010
HEAT IT UP!
HEAT IT UP
On 25th August as part of our GATE extension programme a group of 12 budding St Albans scientists participated in an exciting workshop at Science Alive –Heat it Up!
The workshop consisted of six stations all focusing on the topic of change. As an introductory exercise students were invited to taste two samples of chocolate-one had been re-set and the other tempered. They then had to compare the properties of the two using taste, touch, smell and appearance.
Everyone made a dough shape which was baked to be used later as a template for a plastic mould into which melted chocolate would be poured. The melting point of chocolate depends on the amount of cocoa butter in the chocolate. Pieces of milk chocolate, white chocolate and dark chocolate were put into test tubes and placed in a water bath. Students had to rank the chocolate in order from lowest melting point to highest melting point.
The second station focused on the boiling point of salt water-is it higher or lower than unsalted water?
At the next station students had to predict what would happen if you added salt to icy cold water and to name a practical application for its use.
The temperature of hot wax was then measured and its melting point predicted. A small mould was filled with the hot wax and the temperature measured again when it began to solidify.
Using dry ice the students looked at sublimation (the change from solid to liquid form) A pellet of dry ice was put into water and the time it took to completely sublimate was recorded.
At the end of the session the pieces of cooked dough were placed in between 2 pieces of polystyrene and subjected to extreme heat so that a mould was formed. Melted chocolate was poured into the mould and of course eventually eaten.
This was a very valuable experience for our students who had previously proved themselves to be very able in the Science area of the curriculum.
On 25th August as part of our GATE extension programme a group of 12 budding St Albans scientists participated in an exciting workshop at Science Alive –Heat it Up!
The workshop consisted of six stations all focusing on the topic of change. As an introductory exercise students were invited to taste two samples of chocolate-one had been re-set and the other tempered. They then had to compare the properties of the two using taste, touch, smell and appearance.
Everyone made a dough shape which was baked to be used later as a template for a plastic mould into which melted chocolate would be poured. The melting point of chocolate depends on the amount of cocoa butter in the chocolate. Pieces of milk chocolate, white chocolate and dark chocolate were put into test tubes and placed in a water bath. Students had to rank the chocolate in order from lowest melting point to highest melting point.
The second station focused on the boiling point of salt water-is it higher or lower than unsalted water?
At the next station students had to predict what would happen if you added salt to icy cold water and to name a practical application for its use.
The temperature of hot wax was then measured and its melting point predicted. A small mould was filled with the hot wax and the temperature measured again when it began to solidify.
Using dry ice the students looked at sublimation (the change from solid to liquid form) A pellet of dry ice was put into water and the time it took to completely sublimate was recorded.
At the end of the session the pieces of cooked dough were placed in between 2 pieces of polystyrene and subjected to extreme heat so that a mould was formed. Melted chocolate was poured into the mould and of course eventually eaten.
This was a very valuable experience for our students who had previously proved themselves to be very able in the Science area of the curriculum.
Tuesday, June 29, 2010
Making Silent Movies
On Monday we met Mrs Howison and looked at silent movies on You Tube.
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| From Silent Movies |
Then we made a plan of what we were going to do and we had to write it out on a story board.
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| From Silent Movies |
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| From Silent Movies |
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| From Silent Movies |
Next we got to go and film it. We had to use as much body language as we could. We were able to use simple props.
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| From Silent Movies |
After that we fixed it all up on the computer using iMovie. We added titles over black as that
was how it was done long ago. We made music on Garage Band and added it to our movie project.
We chose Silent movies as we are currently studying change. It is amazing how we can use modern technology to re-create movies made long ago.
I found it nerve wracking but also fun! Ethan
I found it rather funny and I kept bursting out with laughter. Ava
I thought is was exciting. Whitiaua
I thought it was really fun and I like not talking as I am quite shy. Anabel
I found it interesting that we couldn't talk but still get our message across. Emma
I learned how to put garageband music onto movies, is was exciting. Jesse
I liked the character I played. Roisin
I felt happy to meet new people. Ngahiraka
I enjoyed working in groups. Pieta
I enjoyed the brainstorming and storyboarding. Zoe
I thought it was exciting. Hilary
It was great, fun and awesome. Finn
Here are our movies, we hope you enjoy them.
This was created by Whiti, Finn, Jesse and Ethan.
This was created by Anabel, Roisin, Ava and Emma.
This was created by Hilary, Ngahiraka, Pieta and Zoe.
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