6th+Grade+Science+Day+8

[6th Grade] [6th Grade Assignment Sheets] Language Arts] Math] Science] Social Studies] Science Unit Plan] Day 1] 2] 3] 4] 5] 6] 7] [8] 9] 10]

**__Day 8: Cell Diffusion and Osmosis __**   -The students will explain how materials pass through a cell membrane during the processes of diffusion and osmosis. __Focus Attention/Motivation: __  Teacher will place 2-3 drops of unidentified extract in into deflated balloon in front of class. Blow balloon up, tie, place it in a shoe box. Repeat with several other scents such as vanilla, lemon, etc. Place in shoe box, close lid. Leave lid closed while students are writing. 5 minutes  Have students answer Question of the Day in science journals. “What would happen if a plant had no cell wall? 5 minutes  Pass boxes around. One per group. Students open box and try to identify scents.  Ask. Why does the box smell of particular scent when extract was only placed in balloons? <span style="color: #e36c0a; font-family: 'Times New Roman','serif'; font-size: 12pt;">Diffusion. <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Discus what they know. <span style="color: #e36c0a; mso-themecolor: accent6; mso-themeshade: 191; msospacerun: yes; msothemecolor: accent6; msothemeshade: 191;"> 10 minutes <span style="color: #e36c0a; font-family: 'Times New Roman','serif'; font-size: 12pt;"> __<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Instructional Input & Modeling __<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">: <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Page 36-37 of text. Preview pictures that illustrate diffusion. Ask if anyone can explain based on pictures. Look at vocabulary words. “diffusion” and “osmosis” <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Students will silently read 3 paragraphs about diffusion. When finished reading, they must stand up and do 5 bicep curls. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">(While students are reading, teacher is preparing lab) <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Discussion of diffusion. Students take notes as teacher transcribes on ELMO-Definition and quick drawing of concept. <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Teacher will demonstrate concept with sugar cube and glass of water. Predict and discuss what will happen when sugar cube is dropped into water. Sugar particles eventually diffuse throughout water. 20 minutes <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> __<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Student Engagement/Practice: __ <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Agree or disagree with this statement? The cell membrane in plant and animal cells plays the most important role in diffusion. Those who agree go to one side of the room, those who disagree go to another. (Students will have knowledge of cell membranes from previous lessons). Discuss reasoning. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Students return to seats. Hand out lab write up worksheets. <span style="color: red; font-family: 'Times New Roman','serif'; font-size: 12pt;">5 minutes <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Experiment: Students investigate how a cell membrane works. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Cornstarch and water were placed into a plastic bag and closed with a twist tie. Ask students what this represents? <span style="color: #e36c0a; font-family: 'Times New Roman','serif'; font-size: 12pt;">Cell membrane. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Explain that the bag will be then placed in a cup containing water and iodine. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Students will predict what will happen when the bag is placed into the cup containing the solution. Discuss with shoulder partner and write hypothesis on lab write up worksheet. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">The bag is placed in cup. Students observe and record initial observations. <span style="color: red; font-family: 'Times New Roman','serif'; font-size: 12pt;">10 minutes <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">We will read and discuss paragraphs about cell membrane as a class. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Students will again observe and record observations. <span style="color: red; font-family: 'Times New Roman','serif'; font-size: 12pt;">10 minutes <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Is there a word for the diffusion of water across a membrane? Osmosis. Read paragraph as whole class. Write definition in notebook. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Students make final observation and record observations. <span style="color: red; font-family: 'Times New Roman','serif'; font-size: 12pt;">10 minutes <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Homework finish lab write up… Conclusion-Was hypothesis correct? Explanation of results. <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> Experiment write up  <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> Demonstration materials <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> Experiment materials <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> Experiment write up <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">
 * __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Subject: __** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Science
 * __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Topic __**__<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">: __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> Cell functions
 * __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Grade Level __****<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">: **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">6th
 * __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Time Frame: __** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">80 minutes <span style="font-family: 'Times New Roman','serif'; font-size: 13.5pt;">
 * __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Learning Standard __**<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">: 12.A.3a <span style="font-family: 'Arial','sans-serif';"> <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Explain how cells function as “building blocks” of organisms and describe the require­ments for cells to live.
 * __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Instructional Objective __**__<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">: __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> -The students will comprehend the processes of diffusion and osmosis within a cell.
 * __<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Procedures: __**<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">
 * __<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Assessment: __**<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> Participation in discussion
 * __<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;">Materials: __**<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt;"> Scott Foresman 6th grade science text
 * __<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Accommodations: __**<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Students experiencing difficulty will be given outline of notes with blanks for them to fill in.