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Unit 1 Review: Nature of Science > Nature of Science > Flashcards

Nature of Science Flashcards

Review

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1
Q

Gathering information using your five senses is called making an ______________?

A

observation

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2
Q

In what tense does an observation occur (past, present, or future) ?

A

present

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3
Q

Attempting to explain the observations you made, using your prior knowledge is making an _________________

A

inference

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4
Q

What is the similarity between an observation and an inference?

A

Both are based off the observation you made in the moment

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5
Q

What is a similarity between qualitative observations and quantitative observations?

A

Both are observations in which you are collecting information using your 5 senses.

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6
Q

What is a difference between qualitative observations and quantitative observations?

A

Quantitative include numbers and measurements
Qualitative include descriptions and adjectives.

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7
Q

What are the 3 major categories of Science?

A

Life science, Physical science, Earth science

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8
Q

Describe Life science and give an example.

A

Life science is the study of living things and includes topics such as cells, photosynthesis, and life cycle

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9
Q

Describe Physical science and give an example.

A

Physical Science is the study of energy and matter and includes topics such as the states of matter, phase changes, periodic table, substances and mxitures.

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10
Q

Describe Earth Science and give an example.

A

Earth science is the study of Earth and space and includes topics such as natural disasters, the rock cycle, and the solar sysyem.

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11
Q

List and describe the steps of the Scientific Method

A
  1. State the problem/ask the question
  2. GATHER information
  3. State the hypothesis (if IV/then DV format) - NO comparisons
  4. Test the hypothesis with an experiment (variables ==> IV, DV, Constants, Control)
  5. Analyze your date
  6. Draw a conclusion
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12
Q

I am tired of having so many knots in my hair and I want to find a conditioner that will help.
Set up an experiment==>
State the Problem

A

There are too many knots in my hair

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13
Q

I am tired of having so many knots in my hair and I want to find a conditioner that will help.
Set up an experiment==>
State the Hypothesis

A

If I use Suave conditioner, then I will have less knots.

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14
Q

I am tired of having so many knots in my hair and I want to find a conditioner that will help.
Set up an experiment==>
State the IV

A

The brand of conditioner

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15
Q

I am tired of having so many knots in my hair and I want to find a conditioner that will help.
Set up an experiment==>
State the DV

A

Amount of knots

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16
Q

I am tired of having so many knots in my h air and I want to find a conditioner that will help.
Set up an exeriment==>
State the constants

A

Amount of conditioner you use, the amount of time you leave it in your hair, if you brush your hair before going into the shower

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17
Q

I am tired of having so many knots in my hair and I want to find a conditioner that will help.
Set up an experiment==>
State the control

A

Doing a trail without the IV (no conditioner)

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18
Q

How can bias affect the results of an experiment?

A

It can give misleading results.

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19
Q

How can you ensure valid results and avoid bias?

A

perform many trials of the same experiment; avoid having a favorite

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20
Q

What are scientific theories?

A

Explanations of things or events based on the knowledge that was gained from observations and MANY investigations. They are used to explain WHY things happen.

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21
Q

What are scientific laws?

A

Statements about WHAT happens in nature, that seems to be true all of the time.

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22
Q

What is a similarity between scientific theories and scientific laws?

A

Both are based on observations and hypotheses.
Both can be used to make predictions.

23
Q

What is a model?

A

A model represents things, ideas or events to help understand them better.

24
Q

Give an example of a model.

A

an atom, the solar system, building blueprints

25
Q

What is a measurement standard?

A

Quantities and measurements that everyone knows and understands, can be compared and used universally.

26
Q

Give an example of a measurement standard?

A

inch, foot, meter

27
Q

What is a measurement unit?
Give an example

A

The label that comes directly after a number/measurement;
degrees, inches, dollars

28
Q

What is a measurement tool?
Give an example.

A

The object you measure with;
scale, ruler, beaker

29
Q

What tool measures mass?

A

scale, triple beam, balance

30
Q

What tool measures volume?

A

liquid: beaker, measuring spoon
solid: measuring tape

31
Q

What tool measures length?

A

ruler, tape measurer

32
Q

What tool measures time?

A

clock, stop watch

33
Q

What tool measures temperature?

A

thermometer

34
Q

What does mass measure?

A

amount of matter in an object
(grams, pounds, etc)

35
Q

What does volume measure?

A

amount of space something takes up
(liters, cups, etc)

36
Q

What does length (width and height) measure?

A

the distance between 2 points
(meters, inches, etc)

37
Q

How (what tool) do you measure liquid volume?

A

beaker, cup

38
Q

How (what tool) do you measure a cubed object with even sides?

A

measuring tape, ruler

39
Q

How (what tool) do you measure a cubed object without even sides?

A

beaker, cylinder for volume displacement

40
Q

What formula for finding density/mass/volume?

A

d = m / v
m = d v
v = m / d

41
Q

Why are density and speed considered derived units?

A

They both have 2 units.
(density - mass & volume; speed - distance & time)

42
Q

Are mass and volume derived units?

A

NO

43
Q

What is the basic unit for mass?

A

kg

44
Q

What is the basic unit for length?

A

meters

45
Q

What is the basic unit for time?

A

seconds

46
Q

Why are charts and graphs helpful for scientists?

A

They allow the data to be displayed and analyzed in organized ways. This allows for analyzing data, drawing conclusions and making predictions.

47
Q

State 3 differences between line and bar graphs.

A
  1. Line Graphs show change over time, bar graphs compare data.
  2. Line graphs require the x-axis data to be at the line; bar graph x=axis to be between the lines.
  3. Line graphs you plot and connect dots to make a line; bar graphs you make bars.
48
Q

State similarities between line and bar graphs.

A
  1. Both need an X and Y label
  2. 3 titles (main, IV, DV)
  3. DV on y-axis and IV on x-axis
  4. y-axis data must be at the line
49
Q

DV: x-axis of y-axis?

A

y-axis

50
Q

IV: x-axis of y-axis?

A

x-axis

51
Q

State the steps to set up a line or bar graph.

A
  1. Label X and Y
  2. 3 titles
  3. integers plotted correctly
  4. plot dots and connect/color
52
Q

How do you set up the x-axis on a line and bar graph?

A

Line: IV
Bar: what you are comparing

53
Q

How do you set up the y-axis on a line and bar graph?

A

Line and Bar: DV (lowest & highest value)

Unit 1 Review: Nature of Science (1 decks)

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