8th Grade Science Guide

8.1: Chemistry 3 Dimensions & Progressions

Unit 2

Then have them continue to watch through the side of the cup. As the ice melts, the water will go to the bottom and create a third layer. Students continue to observe and give explanations on the molecular level. Include causes and effects for this phenomena. What is the liquid? What is the ice made of? Why does the ice sink? Why does it foat? Why is it layered.

● Summary Paragraph:

8.1.7 Phenomena: Metal Vs. Plastic Spoon Energy Transfer

Objective

Overview

Materials

● I can defne and model energy transfer (conduction, convection, radiation). ● I can differentiate between an insulator and a conductor. ● I can design, construct, and test a device that will affect the rate of a phase

● Students are given a

● melting ice cube link to student directions ● plastic spoons, metal spoons (stainless or silver works best), ice

plastic and a metal spoon. They make general observations of their properties and then test them to see which will most quickly melt ice. Directions are on the link in the materials.

change and compare competing devices to improve performance.

Activity: Penguin Article

Objective

Overview

Materials

● I can defne and model energy transfer (conduction, convection, radiation).

● Students read the

● Penguin Article ● Worksheet

penguin article and fnd evidence from the article to answer a set of questions.