Tuesday, August 2, 2011

Super Science!

We have started the term with some exciting science. Today we had a visiting group of scientists come to work with Room 2 and 3. Their names were Esther, Bianca, Sam and Joe.

They showed us how to make airzookas and straw oboes and talked about how sound is made and how it travels.



We made some straw oboes. We cut a notch out of one end of a straw. Then we had to blow through the straw while pressing down slightly with our lips.
It was VERY tricky but some of us made some strange duck sounds!!













The Airzooka

We had some cardboard tubes.








We cut the neck off the balloon and stretched the round part over the end of the tube. We pulled the balloon back and let it go.









At the other end is a lid with a hole cut in it. A puff of air comes out when you let the balloon go at the other end.





Sounds Travel!

Bianca had a wire coat hangar with 2 strings tied to it. She hit the wire with a fork when we were holding the strings and it sounded quiet.










When we held the strings up to our ears the sound was really loud. The sound from banging the wire travelled up the string into our ears. The wire hanger vibrated and the vibrations went up the string!





At the end of the afternoon Esther showed us how to make icecream. She mixed cream, milk, sugar, berries and chocolate chips together in a bowl. Then while the mixer was going Joe poured in some liquid nitrogen. This is really really really really cold!! It froze the cream mixture straight away and turned it into icecream. It also gave off steam as it warmed up in the room. Esther then put a little scoop of icecream in a cone and we all had one! Yum...this is great science!

We had a great time observing, predicting, and exploring. Over the next few weeks we will let you know of some other learning that we do in science.

Something to look out for is what hatched out of the mystery egg in our classroom....it has to be submerged in water....hmmmm what do you think it could be??

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