Grade 1 - A History Of The Earth

90 The History of the Earth: Supplemental Guide 5 | Minerals

gemstones, n. Precious stones that can be cut, polished, and used in

jewelry

Example: We were amazed at the brilliant colors of the gemstones on

display in the museum.

Variation(s): gemstone

minerals, n. Natural substances found in rocks or in the ground

Example: Minerals such as diamonds and gold come in many shapes

and sizes.

Variation(s): mineral

traces, n. Very small amounts

Example: After three days, there were still traces of snow on the ground.

Variation(s): trace

Vocabulary Chart for Minerals

Core Vocabulary words are in bold.

Multiple Meaning Word Activity word is underlined.

Vocabulary Instructional Activity words have an asterisk (*).

Suggested words to pre-teach are in italics.

Type of Words Tier 3

Domain-Specifi c Words

Tier 2

General Academic Words

Tier 1

Everyday-Speech Words

Understanding

geologist

gemstones

minerals

characteristics*

collection

dissolves

environments

pure

skills

texture

beautiful

color

diamond

salt

size

Multiple Meaning

crystals

facets

polish

traces

clear

composed

common

scratch

shape

study

type

variations

clear

cut

glass

rocks

Phrases earth’s crust magnifying glasses

Cognates

geólogo

minerales

cristal

facetas

trazas

característicos*

colección

disolves

puro

textura

claro

común

estudio

tipo

variaciones

diamontes

sal

color

rocas