Wednesday 10 December 2014

Bridge building

Mrs Ware read us a cool big book last week about the 'Three Billy Goats Gruff' and in the back it had a report on different types of bridges. We thought it would be cool to try building some of our own.


Mrs Ware found another book called 'The Impossible Bridge' which we all read.

Then we got into groups and made a plan. The leaders had to make sure everyone had a chance to share their ideas.





We had to decide on the type of bridge we would build and what materials we would need.  We also thought carefully about what sometimes made us upset when we were working with a group and how we could work together well. 



Yesterday and today we worked really hard on making our bridges. Sometimes it didn't quite work out as we thought and we had to have a group meeting to come up with a new plan.  Mrs Ware was REALLY impressed and how well the teams worked together :)






Last of all Mrs Ware put blocks on the bridges to see if they were strong. 






Well done Room 12. What awesome team work!!!




Coke experiment

As part of our proccedural writing in class we did a science experiment.

Mrs Ware asked us what we thought might happen if we put some coins and a tooth in coke for a few days.

We know about only changing one variable in an experiment so we made this plan.


We used what we knew about coins, teeth and coke to make some hypothesis (guesses) then we took some 'before' pictures.



Then we put them all in coke for a day.  The next day we took them out and looked at them, took more photos and made some observations in our writing books. 



We saw that the coins were shinier and the tooth looked all brown. The next day this is what they looked like. 


We concluded that the acid in the coke had eaten through the enamel coating on the tooth, and then the food colouring in the coke had dyed it brown. 

The acid had also eaten away all the dirt and grime on the coins making them nice and shiny again. 

Hopefully this experiment should put your child off drinking quite so much coke this summer ;)