Sunday, 8 January 2012

SPACE EXPLORATION!

This afternoon we decided to have a think about space and what things are like for the people that go up there exploring!

First we talked about how hard it would be to land on the moon. We realised that the people at the space center could not just point a rocket at the moon and send it on its way, because the moon is moving! So how do they get the space shuttle on to the moon that is orbiting our Earth? We decided they would have to calculate where the moon was likely to be by the time the shuttle got near it!
To show how hard it is to hit a moving target we hung a silver moon (screwed up tin foil) off a ruler and hung it over the edge of a chair, weighing down the ruler with a book. Then we swung the moon and threw our space shuttles (screwed up bits of paper) at it....... It's not very easy at all! We did  get a couple of hits!


We also wondered how it might feel for someone walking on the moon. We found an activity in a book that was fun to try out!

The boys climbed in to all in one suits, we used a cyberman costume and a ski suit! Then stuffed it full of news paper, put on wellies, gloves and a helmet. Then filled a backpack with books to wear, to make their balance a bit off center!


The giggling was wonderful to hear and they were defiantly off balance. They decided to walk on the sofa bed as well as this made them even more wobbly!



Kenzie decided that being a spaceman was not very comfortable and he didn't think he would like that job!
He chose to come with me and look at how meteors brake up when they enter the Earths atmosphere!

We used a very basic and probably not very accurate example for this. But it gave a general idea of what happens. Antacid tablets dropped in a glass of water.
Kenzie noticed how the tablets brake up in to smaller pieces, and that the smaller pieces are the bits that hit the bottom of the glass! We decided this was a good thing as big bits could cause big problems for us!


Then we looked at how different sized meteors effected the Earth when they did hit. Does the size of the meteor make a difference to the depth and size of the crater?  The experiment we were going to try did mention using marbles and a tennis ball, but after a while we realised that the weight of these objects was not correct. We didn't have a tennis ball so had been using a tangerine, which is of course very light and the smaller marbles much heavier. In the end Brendan found 3 ball bearings that were graded in size. These gave much more acurate results. 


Brendan noticed that the bigger the meteor the larger the Crater but it was not as deep as the smaller ones. He guessed this was because it had a larger surface area!


Heather asked what she thought would happen if the meteor hit the Sea!?  Thank you Heather.... the next experiment got us all rather wet!!

We used a melon, onion, apple and satsuma as different sized Meteors and dropped them all from the same height, in to the water. What differences could we see in the size of the wave and splash made by each of the fruits?



 What would happen to the rest of the world if a big meteor hit in the sea? Then a quick introduction in to what Tsunamis are!

Lots of hands on Space fun today! Lots of mess and giggling! and lots of learning taking place without them even realising! Just the way we like it!

I hope you enjoyed our space fun and that you are all inspired to try a space walk for yourselves!!


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