Semester 1 Final Exam Review Flashcards Preview

Lab Science > Semester 1 Final Exam Review > Flashcards

Flashcards in Semester 1 Final Exam Review Deck (41):
1

Length

the distance between two points

2

Mass

the quantity of matter in a object

3

Weight

the gravitational force exerted on an object

4

Temperature

The measurement of the amount of heat in a substance

5

Time

The interval between two events

6

Volume

The amount of space occupied by an object

7

Average

The representative of a set of numbers

8

Kilo

one thousand

9

Centi

hundreth

10

Milli

thousandth

11

Control Group

The group the we compare the results

12

Constant

Things that we change but don't

13

Independent Variable

The variable the intentionally changes at the beginning the experiment

14

Dependent

What we measure at the end of the experiment

15

Error

A mistake

16

Bias

A preference or tendency toward a particular perspective or result

17

Observation

Anything that you can see, touch, smell, or taste

18

Hypothesis

An educated guess that tries to solve the problem

19

Problem Question

A question that asks what is the purpose of the experiment

20

Data

Recorded results of the tests conducted

21

Conclusion

A summary of how results supports or refute hypothesis

22

Graph

A diagram representing a system of connections

23

Bar graph

Includes counting

24

Line Graph

Includes time

25

Circle Graph

Usually using percentages

26

Mean

Average

27

Median

The middle number

28

Mode

The number that occurs the most

29

Accuracy

How close a measured value is to the actual value

30

Precision

How the close the measured value are to each other

31

Density

How much of something is in a certain volume

32

Viscosity

The resistance of a fluid to flow

33

Surface Tension

The ability of water to form a semi- solid "skin" at its surface

34

Hydrogen Bonding

An electrostatic attraction between 2 polar groups

35

Diffusion

The amount of molecules from high to low concentration

36

Osmosis

Diffusion of water from high to low concentration

37

Temperature

Thermometer, degrees (Fahrenheit, Celsius)

38

Humidity

Hygrometer, percent

39

Wind Speed

Anemometer, mph

40

Direction

Compass, (north, east, south, west)

41

Air pressure

Barometer (in.Hg)