Term
|
Definition
| 1. observation/question
2. hypothesis
3. experiment
a. natural law
b. theory |
|
|
Term
|
Definition
| things that are witnessed. does not explain why. a concise summary of observed measurable natural phenomena that occur repeatedly and consistently. |
|
|
Term
|
Definition
| can be predictive. set of tested hypothesis that gives an overall explanation. |
|
|
Term
|
Definition
|
|
Term
| observation can be ___________,_________. |
|
Definition
| it can be qualitative and quantitative. |
|
|
Term
|
Definition
| information or observation that does not involve a number. |
|
|
Term
| give examples of qualitative |
|
Definition
| color, hot or cold, shape, physical state. |
|
|
Term
|
Definition
| information that involves numbers and a unit. |
|
|
Term
|
Definition
| temperature, weight, mass |
|
|
Term
|
Definition
| a possible explanation for a single observed phenomena |
|
|
Term
|
Definition
| is a procedure carried out to provide information. it answers the observation. |
|
|
Term
|
Definition
| law of conversion of mass, law of gravity, law of conversion of energy. |
|
|
Term
|
Definition
| is a measure of the degree of agreement between a measured value and the true value. |
|
|
Term
|
Definition
| 1. due to the measuring instrument 2. due to the person doing the measuring. |
|
|
Term
| are measurements absolute? |
|
Definition
| no measurement are absolute |
|
|
Term
|
Definition
| tells the degree of accuracy of your work, the agreement between your value an the "accepted" value for a measurement. |
|
|
Term
| the percentage value formula |
|
Definition
| accepted value-experimental value
_________________________________
accepted value
and then multiply the answer by 100 percent. |
|
|
Term
|
Definition
| is a measure of the degree of agreements between SUCCESSIVE measurements of the SAME property of the SAME item. |
|
|
Term
|
Definition
| the number of significant figures in a measurement or calculated answer indicates the reliability (precision) of the value obtained. |
|
|
Term
| significant figures equal: |
|
Definition
| digits definitely known and one estimate digit. |
|
|
Term
| all non zero numbers are: |
|
Definition
|
|
Term
| zeros that are decimal markers are the significant figure. |
|
Definition
| zero that are decimal markers are not significant figures |
|
|
Term
| zeros that are decimal markers are the significant figure. |
|
Definition
| zero that are decimal markers are not significant figures |
|
|
Term
| are zeros between other digits significant figures? |
|
Definition
| zeros between other digits are significant figures. |
|
|
Term
| are zeros before the non-zero integer significant figure? |
|
Definition
| zeros before the non-zero number are NOT significant figures. |
|
|
Term
| when can the zero after the last non-zero integer be a significant figure? |
|
Definition
| the zero after the last non-zero integer are significant figures if the number is a decimal fraction.
example: 1.00 |
|
|
Term
| is 10,000 a significant figure? what should be done to make it a significant figure? |
|
Definition
| may or may not be significant figures if the zeros occur between the last non-zero integer and not shown decimal points. change it to scientific notation 1.0 x 10 to the power. |
|
|
Term
| How to round a number when the last allowed is less than 5? |
|
Definition
| simply drop this and any following digits. the last significant figure unchanging. |
|
|
Term
| how to round a number when the last allowed number is greater than 5? |
|
Definition
| increase the last significant number by one and drop any extra digits. |
|
|
Term
| the rules for addition or subtraction |
|
Definition
| the decimal fraction with the smallest number of figures to the right of the decimal point, round off the answer to this number of the decimal places. |
|
|
Term
| the rule for multiplication or division |
|
Definition
| the answer contains the same number of significant figures as the quantity with the least number of significant figures. |
|
|
Term
| classify properties into 2 categories |
|
Definition
|
|
Term
|
Definition
| properties of matter that can be observed or measured without trying to change the composition of the matter being studied. ( the the end you end up with the same thing) |
|
|
Term
|
Definition
| matter demonstrates when attempts to change it into new substances. (at the end there is something different). |
|
|
Term
|
Definition
| changes matter undergoes without changing compositions. |
|
|
Term
|
Definition
| change matter undergoes that involves changes in the composition. |
|
|
Term
|
Definition
| molecules that contain two atoms. |
|
|
Term
|
Definition
| molecules that contain only one kind of atoms. |
|
|
Term
|
Definition
| molecules that contain two or more type of atoms. |
|
|
Term
|
Definition
| molecules that contain 3 atoms. |
|
|
Term
|
Definition
| molecules that contain more than three atoms (3or more atom). |
|
|
Term
|
Definition
| matter that has the same properties throughout the sample. |
|
|
Term
|
Definition
| matter with properties that are not the same throughout the sample. |
|
|
Term
|
Definition
| the atoms ans molecules that make up matter. |
|
|
Term
|
Definition
| the effect of gravity on mass. |
|
|
Term
|
Definition
| anything that has mass and occupies space. |
|
|
Term
|
Definition
| matter with definite composition and distinct properties. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| the number and type of components in a substance. |
|
|
Term
|
Definition
| smallest building blocks that make up matter. |
|
|
Term
|
Definition
| contains only one type of atom. |
|
|
Term
|
Definition
| the smallest particle of a pure substance that has the properties of that substance ans is capable of a stable independent existence. |
|
|
Term
|
Definition
| a pure substance consisting og 2 or more kinds of atoms. |
|
|
Term
| what form of molecules do compounds come in? |
|
Definition
|
|
Term
|
Definition
| single pure element or single pure compound. |
|
|
Term
|
Definition
| combination of 2 or more substances. (each substance retains its own identity.) |
|
|
Term
| homogeneous mixture is also known as? |
|
Definition
|
|
Term
|
Definition
| no boundaries seen between components. |
|
|
Term
|
Definition
| boundary between components. they separate. |
|
|
Term
| example of heterogeneous mixture |
|
Definition
| oil and water. they separate when mixed. |
|
|
Term
|
Definition
| a decimal system in which larger and smaller units of quantity are related by factors of 10. |
|
|
Term
| basic unit of measurement |
|
Definition
| a specific unit from which other units for the same quantity are obtained by multiplication or division. |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| meter(m),centimeter(cm), millimeter(mm), kilometer (km) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| cubic decimeter, cubic centimeter(cc), liter(L), milliliter (mL). |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| 1 liter or 1 cubic decimeter |
|
|
Term
| mass can be in forms of... |
|
Definition
| gram,milligram(mg), kilogram (kg) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| the basic unit of temperature |
|
|
Term
| 1 calorie and 1kilocalorie |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
