20386_Science_with_STEM_Year_4_Earth_and_Space_Sciences_Surface_changes

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Unit overview Earth and space sciences SURFACE CHANGES Earth’s surface changes over time as a result of natural processes and human activity (ACSSU075) Lesson 1 How does a geologist use rocks and fossils to understand how the Earth’s surface has changed over time? Lesson 2 What is in soil? Is soil the same everywhere? Lesson 3 What is weathering? How does weathering make soil? Lesson 4 What is erosion? How is it different to weathering? Lesson 5 How does extreme weather change Earth’s coastlines? How can storm erosion be slowed down? Lesson 6 How does human activity contribute to erosion? How can humans help reduce erosion? Summative assessment STEM project Form the landforms Students explore what a geologist is and how they examine rocks to understand what changes Earth’s surface has gone through. Students conduct their own dig in the school yard, and photograph and examine rocks, in an attempt to classify them. Students explore what soil is made up of and the three types— sand, silt and clay. Students investigate actual soil samples to record information about colour, texture, grain size and ability to absorb water, as well as conduct an experiment to separate soil into its components. Students conduct online research to determine what weathering is and represent the information in a graphic organiser of their choice. Students then demonstrate the weathering process of freeze-thaw by creating a rock from modelling clay, filling the inside with water, freezing and photographing the results. Students look at examples of landforms and predict how these were formed. Students then conduct online research by watching a video that explains the difference between weathering and erosion. Students then demonstrate erosion by wind, water and ice (glaciers) and compare their demonstrations to videos online. Students explore the effects of extreme weather, such as floods and storms, on coastlines or areas surrounding natural waterways. Students conduct an experiment to test the effects of erosion when only sand is present, when there are plants in the sand, and one other variable of their choice that is added to the sand. Students recreate storm waves and film the results, in order to offer the best solution to protect the coastline from erosion. Students use internet research to understand how humans contribute to erosion through deforestation, mining, construction and agricultural practices. After watching a video of school students investigating a local area subject to erosion, students explore their own local area and create a short documentary about the way humans have contributed to erosion and how they may be able to help. ©R.I.C. Publications Low Resolution Images Display Copy Students answer questions relating to what rocks and fossils can reveal about Earth’s past, the components of soil and how sand is created, what weathering and erosion are, and the effects of extreme weather and humans on erosion. Students use their knowledge of how landforms are created and change over time, to demonstrate the process using gelatin/ sand landforms and warm water. A video is then created by adding sound effects, music and a voice over, as well a table of measurements taken of the various landforms. Pages 80–83 84–87 88–91 92–96 97–99 100–101 102–104 105–112 78 Science: A STEM APPROACH YEAR 4 R.I.C. Publications® – www.ricpublications.com.au
Earth and space sciences SURFACE CHANGES Unit overview Curriculum scope and sequence SCIENCE UNDERSTANDING Earth’s surface changes over time as a result of natural processes and human activity (ACSSU075) SCIENCE AS A HUMAN ENDEAVOUR Science involves making predictions and describing patterns and relationships (ACSHE061) Science knowledge helps people to understand the effect of their actions (ACSHE062) SCIENCE INQUIRY SKILLS Questioning and predicting With guidance, identify questions in familiar contexts that can be investigated scientifically and make predictions based on prior knowledge (ACSIS064) Planning and conducting With guidance, plan and conduct scientific investigations to find answers to questions, considering the safe use of appropriate materials and equipment (ACSIS065) Consider the elements of fair tests and use formal measurements and digital technologies as appropriate, to make and record observations accurately (ACSIS066) Processing and analysing data and information Use a range of methods including tables and simple column graphs to represent data and to identify patterns and trends (ACSIS068) Compare results with predictions, suggesting possible reasons for findings (ACSIS216) Evaluating Reflect on investigations, including whether a test was fair or not (ACSIS069) Communicating Represent and communicate observations, ideas and findings using formal and informal representations (ACSIS071) Lesson 1 2 3 4 5 6 Assessment STEM project ©R.I.C. Publications Low Resolution Images Display Copy R.I.C. Publications® – www.ricpublications.com.au YEAR Science: 4 A STEM APPROACH 79
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20386_Science_with_STEM_Year_4_Earth_and_Space_Sciences_Surface_changes

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