1 00:00:01,199 --> 00:00:13,089 We are going to talk about matter. 2 00:00:15,089 --> 00:00:16,410 What is matter? 3 00:00:16,769 --> 00:00:19,429 Matter is everything that is around us. 4 00:00:21,190 --> 00:00:22,410 States of matter. 5 00:00:22,890 --> 00:00:25,510 Matter can be solid, liquid or gas. 6 00:00:26,629 --> 00:00:27,269 Reflection. 7 00:00:28,149 --> 00:00:30,070 Reflection is a natural phenomenon. 8 00:00:31,109 --> 00:00:37,130 It is produced when rays of light hit the surface of solid or liquid matter and change the direction. 9 00:00:37,130 --> 00:00:39,270 Mixture 10 00:00:39,270 --> 00:00:47,789 A mixture is a substance made up of two or more types of matter that are not chemically combined. 11 00:00:49,009 --> 00:00:54,350 A solution is a mixture of one or more liquids with one or more other substance. 12 00:00:54,350 --> 00:01:01,130 A solution is a mixture of one or more liquids with one or more other substance. 13 00:01:01,609 --> 00:01:05,769 In a solution, each substance is dissolved in the liquid. 14 00:01:05,769 --> 00:01:18,769 Can we separate mixtures with filtration, evaporation, with dissolution, and distillation? 15 00:01:19,829 --> 00:01:26,750 Chemical changes occur when one or more substances combine to form a new substance. 16 00:01:27,290 --> 00:01:29,670 A chemical change is non-reversible. 17 00:01:29,670 --> 00:01:36,670 The new substance cannot be changed back into its original forms or components. 18 00:01:36,670 --> 00:01:37,670 Bye!