Egg-cellent Experiments!

The Pukeko reading group have been having lots of fun learning to make inferences and identify key information from texts.  We have also been tying our reading learning into our Science Fair term topic.

This week we are looking at 'The Acid Effect'!  Natalie bought some eggs from her chickens and Koka Ngaire bought the vinegar... we have put the egg into the jar with the vinegar and we are now leaving it for a week.

What can you see already happening?

We discovered that this is the calcium of the egg reacting with the vinegar (the acid) - the bubbles are the shell being dissolved by the acid (vinegar).

We can't wait to see what happens... our hypothesis is that we think the egg is going to lose its shell completely and be 'bendy'.

Our modifications - what acid did we use?

We thought about our previous experiment with acid's and came up with a modification to this experiment.  Looking at our earlier blogs - what acid do you think we have added to water to see if we can make the same reaction with the egg?











UPDATE: The egg has been in the vinegar for one week... today we took it out and had a feel and a look at what was left.  Ewwww... but exciting!  Listen to Izzy, Poppy and Santino explain the experiment and the results.
And for the big finale - WHAT WAS INSIDE THE EGG?
*We thought the egg may have 'cooked' from the vinegar
*We thought the white and yolk may be solid like a hard boiled egg

The results surprised us!!  And we were pretty impressed that the egg bounced!