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1. Overview Using science tools to effectively make observations about the physical properties of... more 1. Overview Using science tools to effectively make observations about the physical properties of substances is an important standard that 5 th grade students need to develop in order to access more challenging science laboratory work in later grades. Access to science standards is not always effectively provided, as many science lessons do not adequately address the language needs of a science activity. This lesson helps 5 th graders explore three specific substances – gravel, sodium chloride, and diatomaceous earth – and how the physical properties of the substances can change when a mixture is made of the substance and water. Students will work in small lab groups and will be given structured language supports when discussing, observing and recording observations of substances and mixtures. Students begin by observing and writing about the physical properties of the substances. Then, they mix the substances with water to form a mixture, and predict which kinds of filters will successfully separate the mixtures. Finally, the students will test their predictions and reflect on the results. 2. Learning Goals and Standards Goals: Science Learning Goals: 1. Students will come to know and understand that various materials (substances) may have different physical properties (S1) 2. Students will come to know and understand that mixtures are an intermingling of two or more materials, and that some mixtures can be separated using filters. (S2) Language Learning Goals: 1. Students will be able to communicate effectively with classmates and the teacher about the physical properties of substances and the study of mixtures (ELD1) 2. Students will be able to use concepts and academic vocabulary to complete writing activities that support concept development related to the study of mixtures (ELD2) 3. Students will be able to follow multi-step directions given verbally and in written form (ELD3)
1. Overview Using science tools to effectively make observations about the physical properties of... more 1. Overview Using science tools to effectively make observations about the physical properties of substances is an important standard that 5 th grade students need to develop in order to access more challenging science laboratory work in later grades. Access to science standards is not always effectively provided, as many science lessons do not adequately address the language needs of a science activity. This lesson helps 5 th graders explore three specific substances – gravel, sodium chloride, and diatomaceous earth – and how the physical properties of the substances can change when a mixture is made of the substance and water. Students will work in small lab groups and will be given structured language supports when discussing, observing and recording observations of substances and mixtures. Students begin by observing and writing about the physical properties of the substances. Then, they mix the substances with water to form a mixture, and predict which kinds of filters will successfully separate the mixtures. Finally, the students will test their predictions and reflect on the results. 2. Learning Goals and Standards Goals: Science Learning Goals: 1. Students will come to know and understand that various materials (substances) may have different physical properties (S1) 2. Students will come to know and understand that mixtures are an intermingling of two or more materials, and that some mixtures can be separated using filters. (S2) Language Learning Goals: 1. Students will be able to communicate effectively with classmates and the teacher about the physical properties of substances and the study of mixtures (ELD1) 2. Students will be able to use concepts and academic vocabulary to complete writing activities that support concept development related to the study of mixtures (ELD2) 3. Students will be able to follow multi-step directions given verbally and in written form (ELD3)