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Science > Midterm Review > Flashcards

Midterm Review Flashcards

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Biology 101 flashcards
1
Q

If fire erupts

A

Notify the teacher

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2
Q

Eye protection are worm

A

Any time chemical, heat, or glassware are used

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3
Q

After an experiment all chemical wastes should

A

Be disposed according to the teachers directions

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4
Q

If hurt, first

A

Tell the teacher

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5
Q

Long hair must be

A

Tied back or kept out of face with hair tie

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6
Q

During a lab activity

A

Loose clothing, dangling jewelry, or sandals SHOULD NOT be worn

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7
Q

Horseplay, practical jokes, or pranks in the classroom

A

Are against the rules

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8
Q

Chewing gum, eating and drinking are all

A

Not permitted

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9
Q

Before leaving the science room remember to

A

Clean your work area and equipment, return all equipment to proper storage and wash your hands with soap and water

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10
Q

Scientific method

A

1) Ask a question
2) Gather Information
3) Create a Hypothesis
4) Perform experiment
5) Analyze data
6) Conclusion

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11
Q

Hypothesis

A

An educated guess or prediction that can be verified through experimentation

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12
Q

Independent Variable

A

The variable controlled by the experimenter. A variable that does not depend on another (x-axis)

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13
Q

Dependent Variable

A

The variable that changes based on the independent variable (y-axis)

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14
Q

Constant

A

A part of the experiment that does not change

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15
Q

Control

A

Something used as a standard of comparison when checking the results of an experiment

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16
Q

Mass

A

Kilogram - kg

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17
Q

Length

A

Meter - m

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18
Q

Time

A

Second - s

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19
Q

Temperature

A

Kelvin - K

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20
Q

Amount of substance

A

Mole - mol

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21
Q

Luminous intensity

A

Candela - cd

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22
Q

Volume

A

The amount of space something takes up

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23
Q

Mass

A

The measure of the quantity of matter a substance contains

24
Q

Density

A

How packed or dense a material is - relates to mass and volume

25
Q

Density Formula

A

Density - mass/volume

26
Q

Graph

A

A graph is a visual representation of data and helps give summary of information

27
Q

What are the three types of graphs?

A

Line graph
Bar graph
Pie chart

28
Q

Energy

A

The ability to do work or cause a change

29
Q

Kinetic Energy

A

Energy of a moving object; depends on mass and speed

30
Q

Potential Energy

A

Stored energy

31
Q

Temperature

A

Measure of the average kinetic energy of the particles

32
Q

Thermal Energy

A

Heat is thermal energy that flows from higher temperature to lower temperature

33
Q

Calorimeter

A

A device used to determine the heat released or absorbed in a chemical reaction

34
Q

Endothermic

A

A process or reaction that absorbs heat

35
Q

Exothermic

A

A process or reaction that releases heat

36
Q

Matter

A

Anything made up of atoms and molecules - anything that takes up space

37
Q

Four states of matter

A

Solids; liquids; gasses; plasma

38
Q

Solid

A

Attractive forces between particles are strong; particles vibrate and are tightly packed together; definite shape; definite volume

39
Q

Liquid

A

Attractive forces between particles are weaker than solid but strong enough to cling together; particles can slide past one another; definite volume; indefinite shape

40
Q

Gas

A

Attractive forces are weak; particles don’t cling together; indefinite shape; indefinite volume

41
Q

Changing States

A

Matter can change from one state to another when thermal energy is released or absorbed

42
Q

Two types of vaporization

A

Boiling and evaporation

43
Q

Boiling

A

Rapid, gas bubbles produced throughout a liquid

44
Q

Evaporation

A

Slow, occurs at the surface of a liquid

45
Q

Heat of vaporization

A

The energy required to turn a liquid to gas

46
Q

Heat of fusion

A

The amount of heat the particles must lose to turn into a solid

47
Q

Melting

A

Solid to liquid

48
Q

Freezing

A

Liquid to slid

49
Q

Vaporization

A

Liquid to gas

50
Q

Condensation

A

Gas to liquid

51
Q

Sublimation

A

Solid to gas

52
Q

Deposition

A

Gas to solid

53
Q

Conduction

A

The transfer of heat by direct contact between two objects

54
Q

Convection

A

Heat transferred by the movement of molecules within a substance

55
Q

Radiation

A

Transfer of heat by electromagnetic

56
Q

Insulator

A

A material which does not allow heat to pass through it easily

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