Chem Unit1 Vocab

Question 1

Claim

Answer 1

Conclusion thats drawn from evidence and reasoning; answers the question asked

Question 2

Evidence

Answer 2

Data collected; must be related to claim

Question 3

Reasoning

Answer 3

Ties together claim & evidence

Question 3

Test tube rack

Answer 3

Holds several test tubes

Question 3

Pipette

Answer 3

Used to transfer small volumes of liquids

Question 4

Watch glass

Answer 4

Round curved glass dish used for evaporation or weighing solids

Question 4

Test tube holder

Answer 4

Holds single test tubes when the tube should not be touched

Question 5

Scoopula

Answer 5

Used to scoop and transfer solids

Question 6

Balance

Answer 6

Used to measure mass

Question 7

Bunsen Burner

Answer 7

Gas burner used as a heat source

Question 8

Test tube

Answer 8

Holds small amounts of matter, generally a liquid

Question 9

Beaker

Answer 9

Has a wide stable base; used to hold and mix chemicals

Question 10

Graduated cylinder

Answer 10

Used for measuring volumes of liquids

Question 11

Ring stand

Answer 11

Used to hold glassware in place during an experimental procedure

Question 12

Qualitative

Answer 12

Descriptive

Question 13

Quantitative

Answer 13

Define, number and unit

Question 14

SI units

Answer 14

Set of standard units based on metric system

Question 15

Base units

Answer 15

Fundamental unit that is abitrary and not by combinations of other units

Question 16

Accuracy

Answer 16

Measure of how close a single measurement is to the actual measurement

Question 17

Precison

Answer 17

Measure of how close a series of measurement are to one another

Question 18

Conversion factor

Answer 18

Turns equivalence statements into fractions that are equal to 1, have different units in numerator & denominator, that are used to convert from one unit to another