Transcript Do Now
Do Now • Please write HW in your agenda. • Please update your table of contents. Page # 56 Title Bill Nye Atoms Guy Date 11/13/14 57 58-59 Classifying Matter HW Elements, Compounds, Mixtures 11/14/14 11/14/14 • Please open to your HW on page 57 to have it checked. Discuss what new information you learned while completing the homework. Classifying Matter • Please take one of the slips of paper from the back lab table – you may only take one, and you may not switch for a different one once you have picked one up! • Once you have a type of matter, please stand on the side of the room labeled with the type of matter you are. Center Mixture Compound Element Classifying Matter Elements Pure substances Compounds Pure substances Mixtures Composed of more than one substance Classifying Matter Elements Compounds Mixtures Pure substances Pure substances Composed of more than one substance Made of only one type of atom Made of more than one type of atom Can have various compositions, even with the same types of substances Classifying Matter Elements Compounds Mixtures Pure substances Pure substances Composed of more than one substance Made of only one type of atom Made of more than one type of atom Can have various compositions, even with the same types of substances Found on the periodic table Can be broken down by chemical means only Can be separated by physical means Classifying Matter Elements Mercury Iron Copper Graphite Aluminum Foil Oxygen Compounds Sand Rust Baking Soda Carbon Dioxide Table Salt Pure Water Mixtures Milk Wood Concrete Tap Water Salt Water Air Coffee Soil Jello Lucky Charms Salad Flour Butter Chex Mix Substances • A substance is matter with a composition that is always the same. • The two types of pure substances are: o Elements o Compounds • Any sample of a substance will always be made up of the same combination of atoms. Elements • An element is a substance that consists of just one type of atom. • Because there are around 115 known elements, there are around 115 different types of atoms. • Elements differ by the number of protons in the nucleus. Elements • Most elements exist as individual atoms. • Some elements, such as oxygen, exist in groups, but still contain only one type of atom. Compounds • A compound is a substance that contains atoms of two or more different elements chemically bonded together. • Carbon dioxide is a compound that consists of two elements, carbon and oxygen, that are chemically bonded together. • A compound often has different properties from the individual elements that make it up. Mixtures • A mixture is a combination of two or more substances that are physically blended together. Heterogeneous Homogeneous • Individual substances are • Individual substances are not evenly mixed. evenly mixed. • Different samples can • Different samples will have different combos of have the same combos of the same substances. the same substances. • Example: Lucky Charms • Example: milk Homework (p. 58) • Create a drawing or a poem to help you remember the difference between elements, compounds, and mixtures. Drawing Poem • Define element, compound, and mixture. • Any type of poem: acrostic, haiku, limerick, sonnet, free verse. • Drawings should be large and colorful, illustrating the difference between the three types of matter. • Define element, compound, and mixture and provide examples. • Must have at least two lines for each type of matter. Exit Ticket • Based on the information from today’s lesson, please write a question that you might see on a test and provide the answer • Example (you may not use this question!): Q: Which types of matter are considered pure substances? A: Elements and compounds