Nature of Matter: Elements, Compounds, and Mixtures
Class 8 · Science
3 ideas in Class 8 Science, explained in plain words, with games and quizzes to practise.
Mixtures and Purity
Part of: Mixture Classification
Mixtures combine substances; pure substances contain one type of substance.
Why it matters. Classifying substances helps explain what they contain and how they can be separated or used.
Try it in two minutes
- List the substance or components.
- Decide whether they are mixed or chemically joined.
- Use the properties to classify the sample.
Try at home. With an adult, compare labels on common materials and identify whether they name one ingredient or several.
Elements and Compounds
Part of: Pure Substance Types
Elements contain one kind of substance; compounds join elements chemically in fixed ratios.
Why it matters. Classifying substances helps explain what they contain and how they can be separated or used.
Try it in two minutes
- List the substance or components.
- Decide whether they are mixed or chemically joined.
- Use the properties to classify the sample.
Try at home. With an adult, compare labels on common materials and identify whether they name one ingredient or several.
Minerals and Materials
Part of: Natural Materials
Minerals are naturally occurring solids; rocks and useful materials may contain mixtures.
Why it matters. Classifying substances helps explain what they contain and how they can be separated or used.
Try it in two minutes
- List the substance or components.
- Decide whether they are mixed or chemically joined.
- Use the properties to classify the sample.
Try at home. With an adult, compare labels on common materials and identify whether they name one ingredient or several.
What your child will practise
- Elements and Compounds: Candy Puzzle (Clue Puzzle)
- Elements and Compounds: Mission Control Sort (Sort It Out)
- Elements and Compounds: Space Quick Fire (Quick Fire)
- Minerals and Materials: Ocean Quick Fire (Quick Fire)
- Mixtures and Purity: Lab Explorer Quest (Collect the Answer)
- Quiz: Elements and Compounds (8 questions)
- Quiz: Minerals and Materials (8 questions)
- Quiz: Mixtures and Purity (8 questions)