Lab Activity: Golden Penny
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When I first started teaching I had a difficult time finding lab activities that actually work and yield minimum error. Fortunately, compiled here are 21 of my most favorite lab activities – enough to teach an entire school year worth of lab. Purchasing this lab bundle will make your first year prPrice $120.77Original Price $120.77
Description
alloys, density, law of conservation, CER, constructing models, atomic structure, mixtures
This highly student-centered lab will help your students decide on the necessary data to collect to decide if in fact their pennies turned into silver or gold. Students will be able to practice their skills of writing claim, evidence, and reasoning statements, as well as practice creating explanatory models. Setup and implementation is easy with my teacher prep guide - see the product preview for details.
Concepts and skills addressed:
- Density
- Alloy chemistry
- Atomic structure
- Law of conservation
- Drawing particulate models
- Defending claims with evidence and reasoning
Perfect for use at the beginning of the year to teach essential science skills, or use during your unit on bonding to introduce metallic bonding and alloys.
Learning objectives: Your students will be able to…
- Identify evidence that will help identify the composition of a pre/post 1982 penny
- Decide on the data that must be collected to determine if a penny turned into silver or gold
- Use evidence and reasoning to defend whether or not a penny turned into silver or gold
- Explain what an alloy is and its properties
Materials your students will need:
- Pennies
- 2.0M sodium hydroxide solution
- Mossy zinc
- Metals tongs or forceps
- Steel wool
- Evaporating dish
- Hot plate
- Stirring rod
- Beaker
This lab activity includes:
- 2-page student lab handout
- Procedural flowchart guidelines
- 4-page article
- Scaffolded sections for obtaining data
- Post-lab questions
- Safety precautions
- Clean up instructions
- Teacher’s prep guide
- Answer key
All rights are reserved by the author. This product is for personal classroom use only and may not be redistributed or posted to any website or educational blog in part or in its entirety. Store Copyright © 2011 by Karen Randazzo (a.k.a. MsRazz ChemClass)
