8th Grade Science Guide

8.1: Chemistry 3 Dimensions & Progressions

Unit 2

Activity: Scale of Atoms

Objective

Overview

Materials

●​ I can develop a model to describe the scale and proportion of atoms and molecules and describe how they make up all matter.

●​ Students will watch two

●​ Cosmic Voyage part 1 Macroscopic Video ●​ Cosmic Voyage part 2 Microscopic Video ●​ Interactive Online Scale: ●​ Student Worksheet for both the Cosmic Voyage and the Interactive Scale

parts of Cosmic Voyage (part 1 from a meter up to the scale of the universe and part 2 from a drop of water down to a quark). They will sort objects from largest to smallest on the student sheet. They will then interact with an online scale and answer questions about their observations.

Activity: PHeT Build an Atom

Objective

Overview

Materials

●​ I can develop a model to describe the scale and proportion of atoms and molecules and describe how they make up all matter.

●​ Students will use the pHet simulation to investigate what role each particle of the atom plays in make the overall atom.

●​ student worksheet ●​ PHeT simulation

Activity: Atomic Structure and The Periodic Table

Objective

Overview

Materials

●​ I can develop a model to describe the scale and proportion of atoms and molecules and describe how they make up all matter.

●​ Students will learn the parts of atoms including protons, neutrons, and electrons. They will use atomic numbers to determine protons and electrons and atomic

●​ periodic tables ●​ Slideshow ●​ Worksheet: Using the Periodic Table ●​ Worksheet: Formulas for Compounds

masses to calculate the number of neutrons in an