21273795
Description
Flashcards by Beatriz Cánovas, updated more than 1 year ago
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Created by Beatriz Cánovas
about 4 years ago
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| Question | Answer |
| It is everything around us that has a mass and a volume. It is made up of atoms. | Matter |
| They are the smallest particles in matter. | Atoms |
| It is the amount of matter in a physical body. | Mass |
| It is the amount of space that a physical body occupies. | Volume |
| It is an instrument used to measure mass. | Scale |
| It is an instrument used to measure volume. | Beaker |
| They are the most common units to measure mass. | Kilogram, gram |
| They are the most common units to measure volume. | Litre, millilitre, cubic metre |
| It is the colour, size, shape, texture of lustre of a body. | Appearance |
| It is the tendency to float or rise in a liquid or gas. | Floatability |
| It is the ability to resist scratching. | Hardness |
| It is the ability to attract iron. | Magnetism |
| It is the ability of a substance to dissolve in another substance. | Solubility |
| It is the amount of heat or energy in matter. | Temperature |
| It is when the appearance changes but the substance remains the same. | Physical change |
| It is when the substance changes into different ones. | Chemical change |
| They are physical changes that happen when a substance passes from one state to another. | Changes of state |
| This state of matter has a fixed volume and a fixed shape. | Solid |
| This state of matter has a fixed volume but doesn't have a fixed shape. It takes the shape of its container. | Liquid |
| This state of matter doesn't have a fixed volume and a fixed shape. It expands to occupy as much space as it can. | Gas |
| It is a chemical change that happens when matter combines with oxygen. | Oxidation |
| It is a chemical change that happens when fungi and bacteria decompose organic matter. | Putrefaction |
| It is a type of oxidation that produces light and heat in the form of fire. | Combustion |
| It is a type of substance that cannot be separated. | Pure substance |
| It is when two or more substances are combined. | Mixture |
| It is a type of mixture in which the components are evenly distributed and cannot be distinguished. | Homogeneous mixture |
| It is a type of mixture in which components are not evenly distributed and thus, they can be distiguished. | Heterogeneous mixture |
| Technique to separate mixtures in which one of the components is iron and the others aren't. | Magnetism |
| Technique to separate mixtures in which one component is liquid and the others are solids. | Filtration |
| Technique to separate mixtures in which the components have different densities so one stays at the bottom. | Decantation |
| Technique to separate homogeneous mixtures in which one substances is dissolved in a liquid. | Evaporation |
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