110 The History of the Earth: Supplemental Guide 6 | The Three Types of Rocks
of chart paper. Write each of the following words on an individual
index card: settle, rise, submerge, descend, sink, fl oat, go up, go
down, and ascend.
Create a Three-Column Chart: Types of Rocks, using Instructional
Master 6B-1 as a guide. Use Image Cards 7(Igneous), 8
(Sedimentary) and 9 (Metamorphic) for the column titles.
➶ Above and Beyond: Make a copy of Instructional Master 6B-1
for students who are ready to fi ll in the chart on their own, using
the sound/spelling correspondences taught thus far.
For the Formation of Rocks extension, bring in three colors of
chocolate chips (one bag per color; e.g. white chocolate chips,
semi-sweet chocolate chips, mint, etc.) or create three colors of
crayon shavings (one cup per color). Have a heat source ready or
have a pan of hot water available. You will also need an aluminum
pan, three zip-top bags, a clear jar, and a few pieces of aluminum
foil. Note: Be sure to check with your school’s policy regarding
food distribution and allergies.