Science SCI.V.2..4 Grade 5 Strand V: Using Scientific Knowledge in Earth Science Standard 2: Hydrosphere - All students will analyze the relationships between human activities with the hydrosphere Benchmark 4: Describe the origins of pollution in the hydrosphere. Constructing and Reflecting: SCI.I.1.1 - Generate scientific questions about the world based on observation. SCI.I.1.2 - Design and conduct scientific investigations. SCI.I.1.4 - Use metric measurement devices to provide consistency in an investigation. SCI.II.1.1 - Evaluate the strengths and weaknesses of claims, arguments, or data. Vocabulary/Key Concepts Context • Sewage • Household dumping • Industrial wastes • Agricultural runoff • • Examples of polluted water Examples of occasions when the water supply is restricted, such as during droughts Knowledge and Skills The student will demonstrate through investigations and awareness of how humans, as well as nature, pollute the hydrosphere. Natural pollutants • Tannic acid • Limestone – hard water Human pollutants • Construction • Industrial waste • Agricultural runoff • Sewage • Household dumping Resources Coloma Resources: Other Resources: • Ecocolumn Lesson Resources • EPA online Ed. Resources – Water • Global Rivers Environmental Education Network • The Globe Program • Vernier Probes available through BCISD • Michigan Teacher Network Resources • Scope Unit – Problems from Pollution • Ground water simulator through BCISD • STC Unit: Ecosystems • US Coastguard Videoconferences Available For more information, see www.remc11.k12.mi.us/dl or call Janine Lim 4717725x101 or email jlim@remc11.k12.mi.us V.2.MS.4 Diving into Solution to Pollution from Aquatic Research Interactive, Inc. Diving into Toxic Release Inventory from Aquatic Research Interactive, Inc. 5th Grade Science Curriculum Technology Resources V.2.MS.4 Vernier probes available: Dissolved O2, IonSelective Electrodes (Ammonia, Chloride, Nitrate), pH Sensor, Turbidity Sensor Instruction Focus Question: What affect does pollution have on the source of water? Instruction I Students will participate in a field trip to collect water samples or the teacher will provide water samples from a lake, stream, river, pond, and household source. Students will make observations or receive descriptions of the natural and industrial surroundings of the five water sources. Students will hypothesize which water sample is most polluted, undrinkable, and why. Students will collect data by performing chemical tests (pH, dissolved oxygen, phosphate, nitrate, colliform, and turbidity and by making microscopic observations of the water samples. Students will compile and use data in charts and graphs to evaluate their original hypothesis. Students will compare and contrast the results of the four water samples to household drinking water and determine if they would consume water from the other four sources. Note: Teachers should emphasize the increasingly important role that aerial transport of contaminants into water bodies. Most of the Pb and Hg reaching Lake Superior, for example, comes from aerial transport. This leads to a discussion on our interconnectedness because with aerial transport, state and international boundaries are easily crossed. How one state pollutes impacts another. Assessment Optional Assessment: Students will write lab reports about the investigations they performed in Instructional Example I that include analysis of the data and the rationale behind their decisions to consider water consumable or not. The data should be represented in data tables and graphs that include the results of chemical tests, sketches of microscopic observations, and collection of geographical data. (give students rubric prior to activity) Scoring Rubric for Instruction Criteria: Completeness of chemical test data: Apprentice Presents a chart that shows results of one test. Basic Presents a chart that shows results of two test types. Meets Presents a chart that shows results of three test types. Presents a chart that shows all testing results. Criteria: Accuracy of microscopic sketches: Apprentice - Attempts a sketch of microorganism(s). Basic Completes a sketch of microorganism(s). Meets Completes a sketch of microorganism(s) showing detail. Exceeds - Completes sketches of microorganisms that are detailed and concise. Criteria: Completeness of geographical data: Apprentice - Attempts to present geographical Using three 2 liter pop bottles, create an data. ecocolumn that contains both a terrarium and Basic Displays one or two areas of aquarium. geographical data. See: Displays all geographical data. http://www.carolina.com/STC/acrobat/storylines/S Meets Exceeds Displays geographical data that is torylineEcosys.pdf accurate and complete Instruction II Assessment (Continued) Criteria: Accuracy of conclusion: Apprentice - Attempts a conclusion. Basic Provides an acceptable conclusion. Meets Provides a detailed conclusion. Exceeds Provides a detailed and accurate conclusion. Criteria: Completeness of lab report: Apprentice - Presents limited information that is relevant to water consumption. Basic Presents information that demonstrates an effort to organize the information. Meets Presents an accurate, interesting, and well-organized report. Exceeds Presents an interesting and accurate report that is clearly focused with explanation of results. Students will write on the following topics: Why is it important to keep toxic wastes from spilling on the ground or leaching out of landfills? (JCISD) Name two ways that toxic wastes can enter our water supply? (JCISD) Teacher Notes: Much of our water supply is located below the surface in ground water deposits, which are replenished by rain that soaks into the ground. Ground water and surface water can be polluted by human activities. “Fresh water, limited in supply, is essential for life and also for most industrial processes. Rivers, lakes, and groundwater can be depleted or polluted, becoming unavailable or unsuitable for life.” (BSL) Focus Questions • • • . What path does water take to reach the Great Lakes from our community? What is ground water and how does it exist? What affect does pollution have on the source of water (surface and ground)?