Science AlexOnline version Review the basic concepts by Mary Carmen Arana 1 Matter a Anything that takes up space and has mass is matter b Is the amount of matter in an object, is measured in grams or kilograms c Is how much space an object takes up 2 1. Mass a Anything that takes up space and has mass is matter b Is the amount of matter in an object, is measured in grams or kilograms c Is how much space an object takes up 3 Volume a anything that takes up space and has mass is matter b Is the amount of matter in an object, is measured in grams or kilograms c Is how much space an object takes up 4 Density a Is the amount of matter present in a certain volume of a substance b A characteristic of matter that you observe and measure directly c Is how much space an object takes up 5 Physical properties a Is the amount of matter present in a certain volume of a substance b A characteristic of matter that you observe and measure directly c Is how much space an object takes up 6 Solid a Definite volume and shape b Definite volume but not shape c Does not has definite volume nor shape 7 Liquid a Definite volume and shape b Definite volume but not shape c Does not has definite volume nor shape 8 2.Gas a Definite volume and shape b Definite volume but not shape c Does not has definite volume nor shape 9 Freezing a Liquid to solid b Solid to Liquid c Gas to liquid d Liquid to gas 10 Melting a Liquid to solid b Solid to Liquid c Gas to liquid d Liquid to gas 11 Condensation a Liquid to solid b Solid to Liquid c Gas to liquid d Liquid to gas 12 Evaporation a Liquid to solid b Solid to Liquid c Gas to liquid d Liquid to gas 13 Chemical change a Is a change in which change a new substance not formed b When one or more substances are change into entirely new substances 14 Physical change a Is a change in which change a new substance not formed b When one or more substances are change into entirely new substances 15 Alex performs a science activity in which he wants to describe certain properties of a substance. Which of the following properties should Alex to measure the space taken up by the substance. a Density b Mass c Volume d Weight 16 Shayna classifies a group of objets by their physical properties. She puts a soccer ball, a blue marble an a orange in one group. What property does she most likely use to classify these objets? a Color b Hardness c Shape d Size 17 A student is describing the properties of an unknown substance. Which of the following words could he use to describe texture? a oval b floral c gritty d shiny 18 Tiko is washing the dishes, and he puts the wet dishes on the drying rack. Tiko knows that, over time, the water on the dishes will disappear and the dishes will be dry. What causes the water on the clean dishes to disappear? a The water melts b The water condenses c The water evaporates d The water absorbed 19 The three states of matter are solid, liquid, and gas. Which process turns liquid water into water vapor? a condensation b evaporation c freezing d melting 20 The three states of matter are solid, liquid, and gas. Which process turns ice water into liquid water ? a condensation b evaporation c freezing d melting
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