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6th grade science worksheet on reversible and irreversible processes with fill-in-the-blank activities about Aboriginal use of resin and plant materials.
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Reversible and Irreversible Processes

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About:

This printable science worksheet explores reversible and irreversible processes through the lens of Aboriginal and Torres Strait Islander use of resin and plant materials. Students complete six informational passages about how resin properties change with heat, the use of resins in tool manufacture and repair, and the irreversible changes from combustion. Includes a 95-word vocabulary bank. Suitable for 6th grade chemistry or physical science lessons on properties of matter and cultural knowledge systems.

Subject:
Science
Topic:
Chemistry
Grade Level:
6th Grade
Updated April 2026

Word Bank

  • adhesive
  • adhesives
  • applied
  • are
  • Australia
  • beeswax
  • bending
  • block
  • blunted
  • bright
  • brittle
  • burns
  • cement
  • charcoal
  • charred
  • coconut
  • combustion
  • commodity
  • commonly
  • cooling
  • cools
  • crumbled
  • cutting
  • damaged
  • depends
  • desired
  • enhanced
  • European
  • evidenced
  • exceeded
  • exude
  • fire
  • fishing
  • fixing
  • flammable
  • form
  • grasstree
  • grasstrees
  • hardened
  • heads
  • heat
  • highly
  • hooks
  • indicated
  • insoluble
  • intended
  • irreversible
  • Irreversible
  • joints
  • knife
  • light
  • limits
  • long
  • malleable
  • manufacture
  • masks
  • moulded
  • night
  • observed
  • odour
  • opportunity
  • plant
  • plants
  • producing
  • prolonged
  • properties
  • purposes
  • quickly
  • repeated
  • replace
  • resin
  • resins
  • results
  • returning
  • reversible
  • sand
  • scraping
  • scrub
  • shape
  • smoke
  • soften
  • source
  • spear
  • spear-throwers
  • spears
  • spinifex
  • stone
  • supply
  • Sydney
  • temperature
  • timber
  • tips
  • torch
  • torches
  • traded
  • traditionally
  • treat
  • turtle
  • undergoes
  • understanding
  • unusable
  • useful
  • vegetation
  • waterproof
  • waterproofing
  • wide

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