Poor Rudolph lost his collar bells. We were investigating which bells would be the loudest for Rudolph to wear so children could hear him coming!
First, we experimented with different bells. Then, we made a prediction on which bell we thought would be the loudest.
We went out onto the playground and conducted our experiment. It's really important to make it fair, we can only change one thing and we chose to change the bells! That meant we had to keep the person ringing the bell, listening to the bell and the distance between the ringer and the listener, as well as the place the same! (That was hard work!)
In conclusion the desk bell was the loudest! We both predicted this, so our prediction was correct!
We have learnt how to predict, conduct and conclude a fair test and at the same time having lots of fun!
Here are some pictures below of our investigation!
Written by Ethan and Bradley
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