PPT-Elements, Compounds, and Mixtures

Chapter 5 Ex Melting Freezing Boilingevaporation Condensation Sublimation Dissolving Bending Crushing Breaking Chopping Filtration distillation Physical change Does not make a different substance. Mr. McMartin. Beta Science. Vocabulary. Compound: a pure substance composed of two or more elements that are chemically combined.. Compounds. Made of two or more elements that are chemically combined.. Investigation 1. Separating Mixtures. Part 1 – Making & Separating Mixtures. Vocabulary. Mixture. – a substance containing two or more materials with different properties.. Property. – a characteristic of an object (something you can observe). Chapter 9.3 Part 1. Q: What is the dullest element? A: . Bohrium. . Key concepts:. Describe 3 properties of mixtures. Describe 4 methods of separating mixtures. Give everyday examples of mixtures. Key Vocabulary:. Mixtures may be separated by many different techniques based on differing physical and/or chemical properties. Sorting. Simply picking apart the different components. This can be easy and obvious…. Chapter 2. Bamboo has properties that make it a good choice for use in chopsticks. It has no noticeable odor or taste. It is hard, yet easy to split, and it is heat resistant. You will learn how properties can be used to classify and identify matter.. 1. st. Year Chemistry. 1. Elements. Elements & Atoms. All substances are made up from tiny particles called atoms. When a substance is made up of only one type of atom it is called an element. The element iron is made up of iron atoms, the element hydrogen is made up of hydrogen atoms, the element sulphur is made up of sulphur atoms and so on.. Divisions of Matter. Pure Substance. Cannot be broken down and retain its properties.. Has a fixed composition.. Every sample of a pure substance has EXACTLY the same composition AND exactly the same characteristics - homogeneous. Pure substances cannot be broken down by physical means.. Pure substances . contain . only one kind of molecule.. Molecules are small groups of atoms that make up matter. Example: Water is a molecule of two hydrogen atoms, and one oxygen atom. How can matter be classified?. Atoms . are the smallest unit of an element that maintains the properties of that element.. The most basic ingredients to . all . matter. Atoms can be combined in three majors ways:. Chapter 5: Molecules and Compounds. Learning Goals. Write . chemical formulas.. Determine . the total number of each type of atom in a chemical formula.. Classify . elements as atomic or molecular.. Classify . Matter. -. anything that has mass and takes up space. .  . Properties of Matter . -Matter can have many different properties or characteristics. -. Chemistry. . is the study of the properties of matter and how it changes. 2014EdusmartGR 4 Teacher GuideGrade 4Separating MixturesTEKS 45Matter and EnergyThe student knows thatmatter has measureable physical properties and those properties determine how matter is classified Which of the following is a physical change that requires energy?. H. 2. O (l) .  H. 2. (g) + O. 2. (g). H. 2. O (l) .  H. 2. O (s). H. 2. O (s) .  H. 2. O. . (l). H. 2. (g) + O. 2. (g). . Elements v. Compounds. Element – Oxygen . Compound – Carbon Dioxide. The Letters of Life. Just like words are made up of letters, compounds are made up of elements. Water. Baking Soda. Capsaicin.