We read an article about a fleet of research waka which spent two years criss crossing the Pacific ocean, observing rubbish in the Pacific Ocean. They noticed that if they found rubbish in the ocean, it usually meant they were getting close to land. Because of this, we infer that most rubbish in the ocean comes from land.
We wondered if the rubbish in our playground might have a similar trend. We decided, before lunch on Wednesday last week, to go and find out.
We split the school into 12 sections on a map. Each section had a group of scientist (us!) to make observations and inferences.
We put a red dot on the map wherever we found a piece of rubbish and collected all the rubbish.
After lunch we went back, and noted with a blue dot, any new rubbish found in our area. We also collected this rubbish. This is our map, showing where we found rubbish, both times.
Our observations and inferences: (Please answer these questions in full sentences for your presentation to another class)
1a What do you notice about where the red dot rubbish is? (Observation)
1b, Why do you think that is? (Inference)
2a. Is it the same in all parts of the map? (Observation)
2b Why? Why not? (Inference)
3a. Do some areas attract more rubbish of certain types than others? (Observation)
3b. Why might this be? (Inference)
4a. What problems might there be with our data?(Inference)
4b. What difference does the wind make? (Inference)
5a. What have you learnt about rubbish in your playground?
5b. What can we do about it?