SCIE 0900 REVIEW FOR TEST 3 For the test be sure to know how to do everything listed below. Plan to able to show your work for any problems
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1 SCIE 0900 REVIEW FOR TEST 3 For the test be sure to know how to do everything listed below. Plan to able to show your work for any problems Metric Conversions with just moving the decimal - To convert a larger metric unit to a smaller metric unit we move the decimal to the. To convert a smaller metric unit to a larger metric unit we move the decimal to the. Convert the following by moving decimal 3200 cm = km 2.55m = mm dam = dm 5677hm = m How many are there? Be able to calculate: How many millimeters in a centimeter? How many milligrams are in a gram? How many milliliters in a liter? How many decameters in a kilometer? How many centigrams in a hectogram? Scientific Notation: Numbers are expressed as some quantity between 1 & 10 multiplied by 10 raised to some exponent N = A x 10 m N = any number A = coefficient between 1 & 10, can be positive or negative, must be greater than 1 or equal to 1 and less than 10 Remember only significant figures are expressed in Scientific Notation! 10 = called the base m = integer, positive, negative or zero Convert to Scientific Notation 18.1 = = 1,445 = 0.33 = Convert from Scientific Notation 3.80 x 10-5 = 6 x 10 3 = 5.46 x 10 6 = x 10-2 = OVER Page 1
2 Be very familiar with the following formulas and be prepared to do problems similar to these below and those from the homework assignments. YOU DO NOT HAVE TO MEMORIZE THE FORMULAS THEY WILL BE PROVIDED Be able to put answers in correct numbers of significant digits. How do you determine the mass? Determining Volume of a block, Cylinder or sphere by measurement or displacement Which is more accurate? A piece of wood has the measurements of 3.3cm x 1.2cm x 1.0 cm. It has a mass of 4.60 gms. What is its volume? What is its density? A ball has a diameter of 5.62cm. It has a mass of 9.33g. What is its volume? What is its density? A cylinder has a diameter of 4.64 cm. I has a length of 12.25cm. It has a mass of 61.5g. What is its volume? What is its density? OVER Page 2
3 Displacement 1. Original reading of volume 2. Final volume of water 3. Final volume original volume = volume of the object Mass of object = 11.6 g Calculate density of the object: Periodic Table What do groups and periods tell us? What info is in each box for each element? How are elements different? How are the elements divided up? Why do we use the periodic table? OVER Page 3
4 Microscope: Know the correct way to use a microscope, the parts of the microscope and what they do/how they work. OVER Page 4
5 OVER Page 5
6 Definitions and topics - be familiar w/what they are or what they refer to: Density Density gradient Matter States of matter what are they and how are they different? Heterogeneous mixture Homogeneous mixture Element Compound Mixture Colloid Suspension Colloidal dispersion Disassociation Pure substance Atomic Number Atomic Mass Periodic Table what do we find on it, what is it? What is in each box? Periods, Groups Metals, Non-Metals, Metalloids, Atom Neutron Proton Nucleus Electron Molecule Electron shells Ion Ionic bond & what happens Electrolytic solution Covalent bond & what happens Chemical formula Heat conduction Heat energy Conduction of electricity Free electrons Law of Conservation of Energy Osmosis what happens Diffusion what happens Scientific Notation Magnification Field of View Scientific Notation OVER Page 6
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