3 Measurement / pts. corrected by: x. First Last Name Per. Answers. Give Giga 10 9 Me Mega 10 8 Knowledge K brother. d 3. c

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3 Measurement / pts First Last Name Per Anticipatory Response Final Cornell Question & Ans Answers Directions: Make 5 questions 1. Lincoln knew Bob Marley.

Mega means 10 6 6. Kilo means 10 3. 7. Deci is like diez meaning 1/10. Give Giga 10 9 Me Mega 10 8 Knowledge K 10 2. brother 1 d 3.

1 3 Measurement / pts First Last Name Per Anticipatory Response Final Cornell Question & Ans Answers Directions: Make 5 questions 1. Lincoln knew Bob Marley. & answers that are different 2. Gigameter is bigger than Km. than the Anticipatory Response 3. Base units are 1m, 1L, & 1g Mega means 1 million. 5. Mega means Kilo means Deci is like diez meaning 1/10. Give Giga 10 9 Me Mega 10 8 Knowledge K brother 1 d 3. c m m n Anticipatory Response km x 1000m 3,004 m Final Answers 1 km ,210 Gg x 10 6 g 3.210x10 6 g 1 Gg m 1,234 Km Summary Section corrected by: x 1

2 T G M K b d c m μ n Tera Giga Mega Kilo Base deci Centi Milli Micro nano Trill. Billion Million Thousand 1 1/10 1/100 1/1000 1/million 1/billion Tg Gg Mg Kg 1gram dg cg mg μ g ng Tm Gm Mm Km 1meter dm cm mm μ m nm 1 liters TL GL ML KL dl cl ml μ L nl Ts Ks Second m s TW Kwatts Watts Tb Gb Mb Kb byte Directions: Fill in each box with the an appropriate answer or question? Gb Kb An acquaintance sells you a laptop with Gbytes of memory. How many Kbytes is that? Gb Tb A Best Buy sales rep. is trying to sell you Gb of memory. How many TeraBytes is that? Tb Gb Radio Shack says that they have a computer with Tb of RAM. How many Gb is that? x10-4 Tb Kb On Craiglist someone is selling a 1.204x10-4 Tb Thumb Drive. How many Kbytes does it hold Gb In Walmart you see a 4.5 Gb hard drive computer. How many Mbytes is that? Gb Kb In Walmart 7 Gb In a computer store you see at x 103 Kb drive. How many? 8 How many GL are in a 2.0 Liter bottle of Soda? x10-4 Gg How many grams are in 32.04x10-4 Gg of salt? x 10-4 Tg A 1.5 x 10-4 Tg of Carbon is equal to how many grams of Carbon? x 10 4 g C Kg C How many Kg of Carbon 12 How many Tb are 3,129,000 Kb? Kb Gb How many Gb x10 4 Kb How many Gb are in Directions: Show work and make the appropriate lines and conversions. 15. How many Kg are in 1.5 x 10 6 g Carbon? How many btyes are in 1.5 x 10 3 Mbytes of memory? 17. How many Liters are in 1.5 x 10-3 KL of memory? 2 corrected Corrected by: x 2

3 T G M K b d c m μ n Giga Mega Kilo Base deci Centi Milli Micro nano Billion Million Thousand 1 1/10 1/100 1/1000 1/million 1/billion Gg Gm GL Mg Mm ML Kg Km KL Ks Kwatts 1gram 1meter 1 liters Second watts dg dm dl GL KL 16 12,001 KL ML GL ml ml cl GL dl dl L ML KL KL L ML L L KL 6 4.3x 10 4 ML nl 21 12,001 nl ML 7 6.7x 10-9 Kg dg dg g 8 12,001 Kg cg cg Kg Km µm x10-3 µm Gm Kg g g mg x 10 4 L nl cm L mm m x 10-3 ml L x10-3 g Kg x10-3 ms Ks m mm 29 12,001 sec m-s 15 94x 10 3 Gb Kbyte T bytes bytes corrected by: x cg cm cl mg mm ml m s 3 Corrected μ g μ m μ L 3 ng nm nl 3

4 Metric Conversions 4 1. Convert the following to km: m 2050 cm Mm mm m 499 m 2. Convert the following: mj cj cl μl 0.05 cm mm 1024 B kb kj cj ml L Gg Mg 25.5 km m cm mm μs ms Ms Gs cm km 3. Convert the following: Gm km TL ML ks cs μs ms 4096 MB GB 210 hm cm μg mg cg g μl cl s ks ng cg GL cl Word Problems 1. The distance from your home to the airport is Gm. How far is this in km? 2. There are 10 computers in the computer lab that each have 20 GB hard drives. How many bytes (B) of disk space do we have in the computer lab in total. 3. A challenge: convert ng to Gigagrams. 4 corrected Corrected by: x 4

Subtract the 2 v. The answer is the objects volume. 2. The following liquids are mixed together. Determine the density of each.

5 DENSITY EXERCISE 1 1. List the 2 methods we learned to determine volume. Give an example of the type of object you might use for each method. Volume of a Liquid Pour liquid into a and read the meniscus. Ex: Volume of a weird shaped object- Fill graduated cylinder about half full, then plunge the w shaped object in the cylinder. Subtract the 2 v. The answer is the objects volume. 2. The following liquids are mixed together. Determine the density of each. Show calculations with colors in order that form in the graduated cylinder to the right. Use calculator below a. 22 of a blue liquid that has a mass of 51.1 g 2.3 g/ b. 46 of a red liquid that has a mass of 43.3 g g/ 46 c. 25 of a clear liquid with a mass of 25.8 g / 25.8 d. 17 of a green liquid with a mass of 14.5 g / e. 30 of a yellow liquid with a mass of 20.7 g / f. 6.5 of an orange liquid with a mass of 6.7 g g. 7.8 of a silver liquid with a mass of 84 g 3. Which liquid (letter a-g) above is the densest? 4. Which liquid (letter a-g) above is the least dense? 5. Which liquid is probably water because of a density of 1.0 g/? 6. What is the difference between MASS and WEIGHT. Mass is how many part are in the object but weight is the force of gr on those particles which is ze in outer-space. 7. What is the density of the rock in the cylinder? a. Formula D ma m w Vo? b. Plug in numbers g c. Solve by dividing 8. If you found another pyroclastic volcanic rock with lots of holes that has a mass of 21.2g & a volume of 35.2, what s its density. a. Formula b. Plug in numbers Volume of water after c. Solve by dividing Volume of before Volume of the Rock 5 5 corrected Corrected by: x 5

6 The Percent Sugar & Flavors in Gum Lab 6 Directions: Make sure to use appropriate sig figs and units. 1. Weigh a stick of gum with the foil (paper). 2. Record the weight and put the stick in mouth. 3. Weigh the foil. 4. Chew the gum for 10 minutes and let dry on the foil. 5. Weigh again. Gum Type sugar free/ regular Before Chewing Mass Before chewing with paper g 1 Mass of Paper - g 2 Mass of Dry Gum (without paper) g 3 After Chewing Mass Chewed Gum & Paper g 4 Mass Paper - g 2 Mass Chewed Gum g 5 Weight of Sugars & Flavors Mass of Dry Gum g 3 Mass of Chewed Gum - g 5 Mass Sugars and Flavors g 6 % Sugars & Flavors Mass Sugars & Flavors 6 x 100% % Mass Dry Gum 3 Gum Conclusions: 1. Which types of gum were higher in % sweeteners? Why? 2. Which types of gum were lower in % sweeteners? Why? 3. Explain how to calculate % composition? 6 corrected Corrected by: x 6

7 YÜ wtç? bvàéuxü DF à{? DJLL gé `ç WxtÜ YÜ xçw tçw à{x ÉÇÄç ã{é vtç z äx Åx tç \ÇàÜÉwâvà ÉÇ ÇàÉ YÜxxwÉÅ tzt Ç? \ Çxxw çéâ àé áxvüxàäç yäétà ÉäxÜ àéâvtñà äx \áätçwê DF Å Äxá Éyy à{x vétáà Éy à{x c ÜtàxáVtÜÜ uuxtç \áätçw? fàa g{éåtá? ã{xüx \ tå ÑÜxáxÇàÄç {xäw vtñà äxa g{x ÉÇÄç ãtç \ËÄÄ zxà Éâà Éy à{ á wâçzxéç á çéâëää {täx àé ÅxÄà wéãç çéâü ÅÉÇxç Ñ xvxá 9 áxää à{x véññxü àé U z Utw UÉuA léâëää y Çw { Å y çéâ áçxt~ tüéâçw Âc Ütàxá cü áéçê ã{xüx \Ëäx uxxç {xäw vtñà äx ÄÄxztÄÄç yéü J çxtüáa U z Utw UÉuÊ á à{x ÉÇÄç Ñ Ütàx ~ÇÉãÇ àé tvvxñà áâv{ uü uxáa léâëää {täx àé wxv wx ã{xà{xü àé uü Çz ÉÄw ÑxÇÇ xá yüéå à{x KCËá tçw uxyéüx ÉÜ Çxã ÉÇxáAg{x ÉÇÄç ÑÉáá uäx àütçáñéüàtà ÉÇ à{tàëá ÑÉáá uäx á véçáàâvà yäétàtà ÉÇ wxä vxá yüéå ÑÜÉwâvàá vüxtàxw uç ytvàéü xá ÇxtÜ à{x vétáàa léâü v{é vxá tüx véü~ ÉÜ ÜâuuxÜ áàéññxüáa léâëää Çxxw ÄÉàá Éy yäâ wá à{tà vtç ux áxtäxw yüéå à{x {xtà tçw átäà t ÜA léâü v{é vx Éy wü Ç~ àé vtüüç ÉÇ çéâü yäéàtà ÉÇ wxä vx á w xà ÉÜ ÜxzâÄtÜ áéwta f ÇvxÜxÄç? léâ ^ÇÉã j{é4 cafa cäxtáx yéääéã à{xáx cüévxwâüxá uxyéüx çéâ v{ééáx çéâü xávtñx ÅtàxÜ täm 1. To find the density of the old pennies (80 s and earlier), 1 st measure mass on the balance to the nearest 100 th example g. 2. Measure the volume of the copper pennies sliding them slowly into a graduated cylinder that has 73.5 of water. 3. Record final volume of the pennies in the H 2 O. Subtract the V total - V water V pennies. Divide m by v; Dm/v 4. Repeat steps 1-3 for the new pennies (82 & later). 5. Repeat steps 1-3 for the cork stopper. Use a pencil tip to keep the stopper under water. 6. Repeat steps 1 3 for the rubber stopper. 7. Mass the diet soda in its can, then subtract the mass of can to obtain the mass of the liquid inside. 8. Read the volume on the bottom of the diet soda and record. Divide m by v; D m/v 9. Repeat step 7-8 for the regular soda. 10. To find density of the water, first mass the graduated cylinder and record the container s mass. 11. Then fill the cylinder to 73.5 and mass again. m total - m cylinder m water 12. Divide the mass of the water by the volume of the water (73.5 );; Divide m by v; D m/v Data Table Fill in each box using a minimum of 3-4 significant digits and with units. D Old Pennies New Pennies Cork Stopper Rubber Stopper Diet Soda Regular Soda Tap Water g g Liquid s Mass g + Container g g - Mass g Container Actual M ass g g g g g g Liquid s Mass Total Volume Water Volume Pennies Volume D M V g_ g_ g_ g_ Check 3 of the 6 choices Questions 1. Why did water not have an exact density of 1.0 g/? 2. Which stopper material would use to make your boat? Why? 3. Why are the sodas a different density? 4. Why are the pennies a different density? 5. What is the rule for rounding? 6. What is the rule for how many digits should be used in your measurements? 7 corrected Corrected by: x 7 7

8 MEASURING AND CALCULATING REVIEW 8 1. Red, Blue, 5g, 20.3m, warm. Which are qualitative/quantitative? Why? Connect the dots to the appropriate answers 2. Centi /100 cm Kilo /1000 mm Milli km Deci /10 dm 3. 1 significant digit sig. Figs x sig. Figs sig. Figs O Liters Mass Amount of particles Weight Compactness; mass/volume Density Space occupied Volume Measure of the fore of gravity on an object 5. Accuracy In solving chem problems one needs it Precision Solving a problem (1 st step) Technique Arriving at the truth Known Info Proving to be consistent Found/Documented Density Uses a derived unit Connect dots & show work for credit. 6. Mass 10g, Volume 2 6 Density? Your value 95g, True value 100g 5 % Error? Mass 25g, Density 10g/ 5 Volume? has how many sig. Figures has how many sig. Figs x molecules is 1 mole Scientific Notation 8 corrected Corrected by: x 8

SIGNIFICANT FIGURES WORKSHEET

SIGNIFICANT FIGURES WORKSHEET PART 1 - Determine the number of significant figures in the following numbers. 1.) 0.02 2.) 0.020 3.) 501 4.) 501.0 5.) 5,000 6.) 5,000. 7.) 6,051.00 8.) 0.0005 9.) 0.1020