Energy and Chemical Change
Overview
This lab is designed to help students understand the nanoscale effect of various energy inputs on the crystal lattice of a smart material, Nitinol.
Standards
HS-PS1-3. Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles
HS-PS2-6. Communicate scientific and technical information about why the molecular level structure is important in the functioning of designed materials.
HS-PS3-4. Plan and conduct an investigation to provide evidence that the transfer of thermal energy when two components of different temperature are combined within a closed system results in a more uniform energy distribution among the components in the system.
Learning Objectives
The students will use the heat equation, q=m c T for calorimetry problems.
Materials
Nitinol wire
Procedure
3min | Get started/Drill/Do Now: (What meaningful activity will students complete as soon as they enter the classroom?) BW-Vocabulary-Alloy, Heat capacity, phase change, temperature, heat
| 5 pts |
4min | Engage/Motivation: (How will student interest be sparked? Is there prior knowledge that should be tapped? Is there vocabulary that must be cleared? Is there brainstorming that student need to complete before the lesson begins?) Demonstration Warmup- Demonstrate how Nitinol behaves differently from other alloys |
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5min | Whole Group Instruction: (Focus lessons [explicit teaching/modeling, strategy demonstration, activate prior knowledge], shared reading, shared writing, discussion, writing process.) Video: Blendspace, Nano Scale Lessons, Tile 17, Nitinol-Metallic Muscles |
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20 min | Group Practice/Small Group Instruction: (teacher-facilitated group discussion, student or teacher-led collaboration, student conferencing, re-teaching or intervention, writing process) Student Lab: Number Nanotechnology Invention and Design: Phase Changes, Energy and Crystal- (Resource Google drive-Nano 2016-Lesson 4, File Name: Phase Changes SW modifies) |
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10 min | Independent Practice: (individual practice, discussion, writing process.) Student Lab: Number Nanotechnology Invention and Design: Phase Changes, Energy and Crystal- Post Lab Questions
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5 min | Evaluate Understanding/Assessment: (How will I know if students have achieved today’s objective?) Whole class discussion of Results and post lab questions. Collect assignment next day.
| 30 pts |
5 min | Closing Activities/Summary: (How will I tie up loose ends, reinforce/revisit the objective and connect the lesson to the unit?) Exit Quiz-Career search
| 5 pts |
| Enrichment/Extension/Re-teaching/Accommodations: (How will my lesson satisfy the needs of all learners?) Video: Blendspace, Nano Scale Lessons, Tile 18, Scientific Tuesday-Nitinol
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Credits
This learning module was created by Linda Monroe, a participant in Indiana University-Purdue University’s NSF-Funded “Nanotechnology Experiences for Students and Teachers (NEST)” Program (Award # 1513112).