1. Bell Work 8/25/14 Number your paper from 1 to 5. See if you can determine what the following magnified photos are. 1. 2. 3. 4. 5. Materials: -PRIDE Card -IN -Pencil/Pen -Foldable

2. The Answers: 1. 2. 3. 4. 5.

3. Learning TargetsTarget Tests 1.Identify the function of materials we use in the science lab. 2.Utilize the metric system to make accurate scientific measurements. 1. 2.

4. Update your Table of Contents!! 8/14/14The Metric System 21 8/25/14Minerals ?? Chemistry

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6. Why does it MATTER???? Matter- anything that has volume and mass. EVERYTHING that surrounds you is composed of matter! There are 4 States of matter

7. 1. Solids Examples: flowers, wood, the chair you are sitting in. 7

8. Examples- water, Gatorade, soda 8 2. Liquids

9. Examples- the sun is made up of many gases, smoke from a fire, water vapor in clouds 9 3. Gases

10. A gas that is composed of free-floating ions Example: solar winds 10 4. Plasma

11. What makes up matter? 11  All matter is made up of elements.  Elements are made up of atoms.  Atoms are made up of protons, neutrons and electrons.

12. A few Definitions…  Matter is anything that has volume and mass. Everything in the physical world that surrounds you is composed of matter.  An element is a substance that cannot be broken down into simpler substances by physical or chemical means.  Atoms are the basic building blocks of all matter and are made up of protons, neutrons, and electrons. Matter  elements  atoms  particles (protons, neutrons, and electrons)

13. How do we organize Elements? There are 92 elements that occur naturally Other elements have been produced in labs.  Each element is given a chemical symbol ex: H=hydrogen, Cu=copper  Elements are classified and arranged according to their chemical properties

14. The Periodic Table is made up of Elements! https://www.youtube.com/watch?v=xQu2eSeM66o 14

15. Elements are made up of atoms…..Let’s take a closer look! Made up of protons and neutrons A particle with approximately the same mass as a proton A particle with a mass and a POSITIVE charge A tiny particle with little mass and a NEGATIVE charge

16. Symbol Element Atomic Mass (sum of protons AND neutrons) Atomic Number (number of protons OR electrons in an atom’s nucleus) Why don’t we include electrons in the atomic mass? Round this number when determining # of neutrons

17. Practice! 1. What is Iron’s atomic number? 26 2. How many electrons does it have? 26 3. What is its atomic mass? 55.845 4. How many neutrons does it have? 56 – 26 = 30 17

18. Let’s Practice!! 18

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20. Bell Work 8/26/13 1. How many states of matter are there? 4 2. What are the states of matter? Solids, liquids, gases, and plasma 3. How many naturally occurring elements are there? 92 20 Don’t forget to write the question too!!

21. The Periodic Table of Elements ***Elements are arranged in columns and rows

22. Columns The vertical (up and down) columns of the periodic table are called groups or families. Elements in the same group or family have similar characteristics or properties.

23. Label each column on your Periodic Table

24. Rows The horizontal rows of the periodic table are called periods. Elements in a period are NOT alike in properties.

25. Label each row on your Periodic Table

26. Groups/Families 26 Periods All the elements can be classified as: -Nonmetals -Metals

27. Metals Non-Metals

28. Quick Quiz (Uno) 1.What element is Group 2 and Period 4? Calcium 2.Is it classified as a nonmetal, metal or metalloid? Metal 28

29. Quick Quiz (Dos) 1.What element is Group 8 and Period 4? Iron 2.Is it classified as a nonmetal, metal or metalloid? Metal 29

30. Quick Quiz (Tres) 1.What element is Group 14 and Period 5? Tin 2. What is that element’s atomic number? 50 3. How many electrons does it have? 50 4. What is its atomic mass? 118.710 5. How many neutrons does it have? 118.710 – 50 = 68.710 30

31. Time to Review for TT4 31

32. Periodic Table of Elements 32 Periodic Table of Elements

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