## Volume of a Penny Lab – New!

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Problem: How can we use water displacement to calculate the volume of one penny?

Materials:

• Volume of a Penny Lab (PDF)
• Graduated cylinders (25 mL, 50 mL, or 100 mL)
• Cup or beaker of water, food coloring optional
• Pennies – 100+ per group
• Tub
• Plastic Spoon – to pour water out of graduated cylinder and separate pennies

This is a simple & fun lab to have students practice measuring and reading volume as well as use water displacement to determine the volume of  a penny – an irregularly shaped object.

Students will design their own series of 10 tests with the following criteria:

• All pennies must be under water inside of the graduated cylinder.
• The volume of water must not pass the 100 mL (or highest) increment.
• All data is recorded carefully.

Students were able to carefully measure and determine that the volume of a penny was 0.35 mL – most students were very close with a range of 0.33 – 0.37 mL.

https://www.instagram.com/peckscience/

## How to draw Lewis Structures – a step by step tutorial

Materials:

• Updated Google Slides (Public Link) with step-by-step instructions on how to draw Lewis Structures
• Lewis Diagrams worksheets

## How to draw Bohr Diagrams – a step by step tutorial

I updated the Google Slides and worksheet for my lesson on drawing Bohr Diagrams. This lesson will walk your students through the basics on how to draw a Bohr Diagram for the first 20 elements on the periodic table. I also created a simple worksheet for students to record their drawings and do independent practice.

You can access them at:

For additional lessons related to atoms and the periodic table, please click on the tags below.