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Science•JHS Matter, Elements & Compounds

Elements, compounds & mixtures

Junior High 6 questions
AI-drafted from platform data — specialist review scheduledBy DigiTransact Mastermind editorial teamLast updated
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What elements, compounds & mixtures means

You learn how to tell an element, a compound and a mixture apart. This helps you understand what different materials are made of and choose a suitable way to separate a mixture.

What you will practise

  • Classify substances as elements, compounds or mixtures.
  • Use simple clues to identify pure substances.
  • Match mixtures with suitable separation methods.
  • Decide when filtration, evaporation or handpicking is needed.

Before you start

You should already know basic particle ideas and be able to describe common materials around you. It also helps to know simple changes in state and how some substances dissolve in water.

Not confident yet? Work through States of matter & changes first.

Worked example

One question from this skill's own question bank, shown with its full working.

Question

Water (H₂O) is an example of a(n):

  • element
  • compound
  • mixture
  • metal
Answer: compound

Working: Water is a compound because hydrogen and oxygen are chemically combined.

Common mistakes to avoid

  • Calling every pure substance an element instead of checking its atoms.
  • Thinking a compound can be separated by simple physical means.
  • Choosing filtration for dissolved solids, when evaporation is needed.
  • Confusing a mixture with a compound because both contain more than one substance.

Curriculum and exam alignment

Ghana GES Basic 7 to 9 syllabusBECE

This topic normally sits in the Junior High School science unit on matter and the nature of substances. It supports the kind of classification and separation questions that often appear in BECE preparation.

Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.

Related skills

Other JHS Matter, Elements & Compounds skills in Science, at the same point in the course.

Other Science topics

Living Things Around UsSHS SciencesUniversity ScienceBiologyChemistryPhysics

Related study guides

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Exams that assess elements, compounds & mixtures

Junior High work on this skill feeds directly into these exam papers. Each page lists the Science topics that appear on it.

BECEBECE practice questionsFree BECE practice across the subjects at this stage, with worked answers.GESGES practice questionsFree GES practice across the subjects at this stage, with worked answers.

How this page was produced

This text was drafted with AI assistance from the questions and topics already stored on the platform. A subject-specialist review is scheduled but has not yet been recorded, so we do not claim it here.

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Practise elements, compounds & mixtures

6 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.

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