Discovering Science 7 Unit 3 Chapter 7 - Mixture/Substances Mixtures vs. Pure Substances Matter can be either a mixture or pure substances. Mixture two or more different of matter. – Heterogeneous Mixture made up of two or more part; usually visible to the eye. – Homogeneous Mixture a mixture in which the parts appear to be the same throughout. – Ex: Clean air, vegetable oil, salt water. Reading Check 235 - #1-3 – Activity 235 7-1B - Homework – – Product Classification Reasons (Hetero/Homo) Cereal Hetero Can see bran and raisins Pure Substance matter that is the same throughout. Each part of the substance has the same – properties. Ex: White sugar, copper, pure water, iron Reading Check 237 - # 1-3 – Note: Pure Substance/ Mixture diagrams regarding the particle theory of matter are imp. Sketch! Activity 238 7-1C Set up 3 stations (OJ, MILK, PEPSI) and allow students to look at them – – – under a microscope Checking Concepts 241 - #1-5 –
Discovering Science 7 Unit 3 Chapter 7 - Mixture/Substances Mixtures vs. Pure Substances Matter can be either a mixture or pure substances. Mixture – two or more different of matter. Heterogeneous Mixture – made up of two or more part; usually visible to the eye. Homogeneous Mixture – a mixture in which the parts appear to be the same throughout. Ex: Clean air, vegetable oil, salt water. Reading Check – 235 - #1-3 Activity – 235 – 7-1B - Homework Product Classification (Hetero/Homo) Reasons Cereal Hetero Can see bran and raisins Pure Substance – matter that is the same throughout. Each part of the substance has the same properties. Ex: White sugar, copper, pure water, iron Reading Check – 237 - # 1-3 Note: Pure Substance/ Mixture diagrams regarding the particle theory of matter are imp. Sketch! Activity – 238 – 7-1C – Set up 3 stations (OJ, MILK, PEPSI) and allow students to look at them under a microscope Checking Concepts – 241 - #1-5