Science test revision

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What is density? Density is the amount of matter in a fixed volume.

How do you calcuate density? Divide mass/ volume

How do you write density? grams/cm cubed

How do you measure the volume of irregular shapes? displacement

What is a mixture? A mixture is two or more pure substances mixed physically.

What are the two types fo mixtures? Homogenous and Heterogenous

What is a solution made up of? Solvent and solute

What is a solute and solvent? solute is the thing being dissolved and solvent is the thing doing the dissolving.

What is a suspension? A suspension is an unevenly mixed mixture.

What is sediment? Sediment is the matter left behind in a liquid.

What is decanting? Decanting is used to separate suspensions based off density.

What is centrifuging? Centrifuging uses gravity to separate suspesions based off density.

What is filtration? Filtration separates a mixture based off size and sates of matter.

What is seiving? Sieving is separating a mixture based on the particle sizes.

What is evaporation? Evaporation is separating mixtures based off boiling points.

What is distillation? Distillation is based of boiling points.

What is chromatography? RESEARCH