Flashcards
Mixtures and Matter
Cards in this deck (36)
- 1What is evaporation?When a liquid turns to gas
- 2What is freezing?When a liquid turns into a solid
- 3What is condensation?When a gas turns into a liquid
- 4What is sublimation?When a solid turns into a gas
- 5What is deposition?When a gas turns into a solid
- 6What is melting?When a solid turns into a liquid
- 7Which is more dense: a tissue box or a brick?A brick
- 8Pure or mixture: ........Pure
- 9Pure or mixture: ...,.,.,,Mixture
- 10Pure or mixture: ,,,,,,,,,Pure
- 11Pure or mixture: ;;;;;;;Pure
- 12Pure or mixture: .,;.,;:.,.Mixture
- 13List the steps in separating a mixture of sand, salt and iron1. Use a magnet to separate iron filings
2. Add water to the remaining salt and sand
3. Sieve sand out
4. Evaporate liquid to leave salt in and evaporating dish - 14What properties allow separation by filtering?Particle size
- 15What properties allow separation by magnets?Magnetism
- 16What properties allow separation by distillation?Boiling point
- 17What properties allow separation by centrifuge?Density
- 18What properties allow separation by chromatography?Molecular weight
- 19What is filtration?Separating liquids from solids through a filter using particle size
- 20What is chromatography?The separation of different coloured liquids
- 21What is crystallization?Separation of a dissolved solid of by evaporation
- 22List three ways you use separation of mixtures in everyday lifeTeabag, filtering water, sieving pasta
- 23When does expansion of matter happen?When matter heats up
- 24What is the different between a solvent and a solute?A solvent is what dissolves something, a solute is what dissolves; a solute dissolves in a solvent, making a solution
- 25In a glass of chocolate milk, what is the solute and solvent?Chocolate is the solute and milk is the solvent
- 26What is matter made of?Vibrating particles
- 27What does heat energy in matter affect?How much the particles vibrate
- 28What state of matter has the most and least heat energy?Gas has the most energy and solids have the least
- 29What allows the separation of mixtures?The particle properties
- 30What is concentration?The quantity in a given space
- 31What is suspension?When a finely distributed solid doesn't dissolve in a liquid; hangs in it
- 32What is the equation for density?Density = mass/volume
- 33What is a solution?A homogeneous mixture of a solute and a solvent
- 34What is the difference between a colloid and suspension?A colloid can pass through filter paper and is cloudy, a suspension cannot pass through a filter paper and has solid particles
- 35What is the difference between chemical and physical change?Physical change is a change to appearance and is reversible and stays the same substance, chemical change sometimes changes appearance but is not reversible and is a new substance
- 36—
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- Test revision
- Created by
- Zoe Braat · Nov 2022
- Updated
- Nov 6, 2022
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