Sedimentary Layers cement thinking on Tuesday
Geologists in action - our identity lenses today ...
We used our thinking framework the OWI -- Observe (look closely at an artifact, object, organism), Wonder (ask questions about what you see), Infer (make maybe statements to answer your questions using your background knowledge).
What was our focus? Sediment jars. What is sedimentation? Why are we interested in understanding sediment? How are water and sediment connected?
Sedimentation = the building up of layers of small particles like sand or mud. https://scienceforthekids.wordpress.com/2013/03/12/what-is-sedimentation/
"The sea, rivers and lakes are the best depositors of sand and mud and dinosaurs (fossils) are found where there used to be a sea, lake or river. But big glaciers also carry grains and the air can also carry very small grains."
It's all sedimentary my dear Watson!
We used our thinking framework the OWI -- Observe (look closely at an artifact, object, organism), Wonder (ask questions about what you see), Infer (make maybe statements to answer your questions using your background knowledge).
What was our focus? Sediment jars. What is sedimentation? Why are we interested in understanding sediment? How are water and sediment connected?
Sedimentation = the building up of layers of small particles like sand or mud. https://scienceforthekids.wordpress.com/2013/03/12/what-is-sedimentation/
"The sea, rivers and lakes are the best depositors of sand and mud and dinosaurs (fossils) are found where there used to be a sea, lake or river. But big glaciers also carry grains and the air can also carry very small grains."
We are looking closely at the different grains and layers in these jars to learn more about sediment and understand how sedimentary rocks are formed as well as eroded (broken down through erosion).
http://teacher.scholastic.com/dirt/erosion/whateros.htm Water is a huge natural force that causes erosion.
These jars gave us connections back to the water cycle and how water changes state. There are obvious signs of evaporation on the jar and it is interesting to observe how the evaporation rings are different colours. Can you inference why this might be?
This led us to a text-text connect to a TED Ed video about the brown food chain and how important decaying plants are to every food chain and ecosystems. We also learned a new word detritus. Have a look at the video http://ed.ted.com/lessons/dead-stuff-the-secret-ingredient-in-our-food-chain-john-c-moore
Here is some of the vocabulary that we collected through our discussion of the jars.
Have a look at some of the fabulous OWI charts completed by the geologist/field scientists. By the way we incorporated some math into this task as well. We used measurement and division to figure out the width of our columns and rows (an array!). Notice how accurate and organized their charts are. Learning how to use a ruler properly is a skill we soon discovered.
It's all sedimentary my dear Watson!
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