CHEMISTRY FORM 1
- 1.1 What is matter?
- 1.2 What is Chemistry?
- 1.3 What does matter consist of?
- 1.4 Are the particles in matter stationary?
- 1.5 Arrangement, distance, and attraction between particles
- 1.6 Properties of matter (volume, shape and compression)
- 1.7 Conductors and non-conductors
- 1.8 Sources of heat
- 1.9 Bunsen burner
- 1.10 Role of Chemistry in society
- 2.1 Pure substances
- 2.2 Mixtures
- 2.3 Separation of Mixtures
- 2.4 Separation of solid-solid mixture
- 2.5 Separation of insoluble solid-liquid mixture
- 2.6 Separation of soluble solid-liquid mixture (solution)
- 2.7 Separation of immiscible liquid-liquid mixture
- 2.8 Separation of miscible liquid-liquid mixtures (solution)
- 2.9 Separation of liquid-gas mixture
- 2.10 Selecting and using appropriate methods of separating mixtures
- 2.11 Kinetic theory of matter
- 2.12 Classification by physical states
- 2.13 Effect of heat on physical states
- 2.14 Effect of impurities on melting and boiling points
- 2.15 Permanent and non-permanent changes
- 2.16 Definitions, chemical symbols and equations
- 3.1 Simple acid-base indicators
- 3.2 Universal indicators and pH scale
- 3.3 Reactions of acids with metals
- 3.4 Reactions of acids with carbonates and hydrogen-carbonates
- 3.5 Reactions of acids with bases
- 3.6 Effects of acids on substances
- 3.7 Applications of acids and bases
- 4.1 Composition of Air
- 4.2 Fractional distillation of liquid air
- 4.3 Rusting
- 4.4 Oxygen
- 4.5 Burning of substances in air
- 4.6 Atmospheric pollution
- 5.1 Candle wax and water
- 5.2 Reactions of metals with liquid water
- 5.3 Reaction of metals with steam
- 5.4 Preparation of hydrogen gas
Simple Classification of Substances and Separation of Mixtures: Separation of insoluble solid-liquid mixture
2.0 Simple Classification of Substances and Separation of Mixtures
2.5 Separation of insoluble solid-liquid mixture
How can we separate sand and water?
Materials and substances required
- Beakers, conical flask, filter paper, funnel
- The mixture of sand and water
Open the video below, filtration,
- What difference between sand and water (or the black solid used) does this separation rely on?
- Name the material used in this method to cause separation of the mixture.
- Why is this material able to cause separation?
- Suggest a name for this method of separation.
- What is the use of glass rod?
- Name any five (5) other substances that flow like water.
- Name two other binary mixtures which can be separated using this method.
- Why is this method not suitable for separating a solution of sodium chloride or other salts in water?
Answers to Questions 2.5(a)
- Find out if fresh milk can be separated by filtration.
- Explain why, although iodine sublimes, sublimation is not a suitable method of separating iodine crystals from water.
- Identify two alternative methods which you would use to separate iron filings from water.
Answers to Questions 2.5(b)
Muddy water can be boiled and allowed to settle, then filtered using a clean piece of cloth. Blended juice is separated in a similar manner.