BELL RINGER 8-19-15 WRITE THE QUESTION AND THE ANSWER 1. What was the temperature on the first day of March? A. 30 B. 75 C. 35 D. 40 2. If you compared the temperature on the first day of October with the first day of January, you would find the temperature A. went down. B. stayed the same.

C. rose slightly. D. rose a lot. BELL RINGER 8-19-15 A shopping mall wanted to determine whether the more expensive Tough Stuff floor wax was better then the cheaper Steel Seal floor wax at protecting its floor tiles against scratches. One liter of each brand of floor wax was applied to each of 5 test sections of the main hall of the mall. The test sections were all the same size and were covered with

the same kind of tiles. Five (5) other test sections received no wax. After 3 weeks, the number of scratches in each of the test sections was counted. 1- What is the Problem? WHERE CAN WE FIND ATOMS?- OPENING Take a look at your neighbor. Look very closely. Can you see any atoms? No? Look closer! If you had super x-ray abilities you

would be able to see that a bunch of things that look something like this. WHAT ARE ATOMS? Atoms are very tiny particles that form the building blocks for all matter CAN WE SEE ATOMS?? A very good question. The answer is Yes. And No. The reason for No is that it is actually

impossible for anybody to "see" an individual atom, since all atoms are thousands of times smaller than the smallest light waves we can see using our eyes. The reason for Yes is that, even though they cannot be seen directly with our eyes there is so much evidence for atoms, and we know so much about them, that it is impossible to say they do not exist. JUST WHAT SIZE IS AN ATOM? Lets do a little exercise!!

What youll need A strip of paper A pair of scissors What to do Take your strip of paper and cut it into equal halves Cut one of the remaining pieces of paper into equal halves Repeat!

JUST WHAT SIZE IS AN ATOM? Cut 1 Hand Pocke t 14

JUST WHAT SIZE IS AN ATOM? Finger Cut 2 Ea r 7.0 cm

JUST WHAT SIZE IS AN ATOM? Watch Cut 3 Mushroom Eye

3.5 JUST WHAT SIZE IS AN ATOM? Cut Keyboard 4 Ring Key Insect 1.75

JUST WHAT SIZE IS AN ATOM? Cut 5 Keep going atoms are much smaller! 0.88 JUST WHAT SIZE IS AN ATOM? Cut

6 Tiny seeds on top of a Whopper bun 0.44 JUST WHAT SIZE IS AN ATOM? Cut 7 Keep going atoms are still much

smaller! 0.22 JUST WHAT SIZE IS AN ATOM? Cut 8 Thread 1.0

JUST WHAT SIZE IS AN ATOM? Cut 9 Its too difficult to keep cutting! Lets just pretend from now on 0.5 JUST WHAT SIZE IS AN ATOM? Cut 10

The size of one tiny light (pixel) on a computer screen 0.25 mm JUST WHAT SIZE IS AN ATOM? Cut 11 Wow, I didnt think anything was this small!

0.125 JUST WHAT SIZE IS AN ATOM? Cut 12 A piece of hair 0.06 mm JUST WHAT SIZE IS AN ATOM?

Cut 13 Our meter has disappeared! ??? 0.03 mm JUST WHAT SIZE IS AN ATOM? Cut 14

The width of paper 0.015 JUST WHAT SIZE IS AN ATOM? Cut 15 Were not done yet keep cutting! 0.007

JUST WHAT SIZE IS AN ATOM? Cut 16 Bacteria 0.003 JUST WHAT SIZE IS AN ATOM? Cut 17 Were not done yet

keep cutting! 0.0015 mm JUST WHAT SIZE IS AN ATOM? Cut 18 Water filter 1.0 micron

JUST WHAT SIZE IS AN ATOM? Cut 19 Were not done yet keep cutting! 0.5 micron JUST WHAT SIZE IS AN ATOM?

Cut 20 Tiny wires inside a computer chip 0.25 micron JUST WHAT SIZE IS AN ATOM? Cut 21 Were not done yet keep cutting!

0.13 micron JUST WHAT SIZE IS AN ATOM? Cut 22 Virus 0.07 micron JUST WHAT SIZE IS AN ATOM?

Cut 23-25 Were not done yet keep cutting! 0.03 micron JUST WHAT SIZE IS AN ATOM? Cut 26 Almost there 5 Cuts left

0.004 micron JUST WHAT SIZE IS AN ATOM? Cut 27 Almost there 4 Cuts left 0.002 micron

JUST WHAT SIZE IS AN ATOM? Cut 28 Almost there 3 Cuts left 0.001 micron JUST WHAT SIZE IS AN ATOM? Cut 29

Almost there 2 Cuts left 0.0005 JUST WHAT SIZE IS AN ATOM? Cut 30 Almost there 1 Cut left

0.00025 JUST WHAT SIZE IS AN ATOM? Cut 31 H Ca He Atoms !!! Cl

C O Na N 0.00013 HOW MANY ATOMS ARE IN A PERSON?

Around 8,000,000,000,000,000,000,000,0 00,000 thats eight million-millionmillion-millionthousand atoms Wow! WORK SESSION PART INTRO TO ATOMS- 8- FLAP FOLDABLE Today we will make an 8 flap

foldable. Fold in half lengthwise (hamburger fold) Open and fold each side to center fold. Now fold it in half twice so that you have four lines going across your foldable. LABEL THE FLAPS THE FOLLOWING Atom

Electron Atomic Structure Atomic Number Atomic Mass Proton Neutron Periodic Table

WORK SESSION GRAPHIC ORGANIZER You will have 10 minutes and 10 minutes only to work with your group to make a poster depicting parts of the atoms. Your poster must include the following information: 12345- A title A description/definition (

A visual representation (thats a picture) Why it is important 2 interesting facts WORK SESSION You will have 20 minutes to quietly travel to each poster and fill in your graphic organizer. It MUST INCLUDE the FOLLOWING INFORMTION 1- Description/ definition 2- Picture 3- 2 interesting facts

You will start at your poster and then move on to the next poster. ( I will not use a timer to tell you when to move on- you go at your own pace- but when 20 is done it is over) This is an individual activity and YOU CANNOT TALK TO ANYONE!!! Click icon to add picture O P P

G N I N S I O A CL R B ATOMS

Atoms are basic building blocks of matter. They are made up of three basic particles, protons, neutrons, and electrons. ATOMIC STRUCTURE Atoms are broken up into two distinctive areas: the

nucleus which has the protons and neutrons and the electron cloud which has ELECTRONS. Clou d PROTONS

Small positively charged particle in the nucleus of an atom. NEUTRONS Particles with NO CHARGE, they are neutral. o

o Tiny, NEGATIVELY charged, high energy particle that moves in the space outside the nucleus of an atom called the electron cloud. Electron -e

-e -e Nucleu s -e -e ATOMIC NUMBER

The number of protons in the nucleus of an atom. The number of PROTONS determines what the element is. (remember this from the video?) In a stable atom (no charge), there must + be an + equal numbers of+protons

ATOMIC MASS (WEIGHT) The average mass of one atom of an element ( number of Protons and Neutrons). # of Protons + # of Neutrons = Atomic Mass NP P N NP

Elements and the Periodic The periodic table Elements Tableare chemically the simplest substances and they cannot be broken down using chemical methods

They have all the same atoms. organizes elements on a big grid based on an elements properties. Each element is placed in a specific location because of its atomic structure. The periodic table brings

order to information about the chemical

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