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Science > Science Skills Test > Flashcards

Science Skills Test Flashcards

(Scientific Method, WHMIS & Lab Safety, Graphing, Lab Equipment

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1
Q

What is Science?

A

Process that produces information about nature

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2
Q

How do we learn about things in
science?

A

We carry out experiments

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3
Q

Testable Questions have:

A

An independent variable.
A dependent variable.
Controlled variables.

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4
Q
  1. Problem/Purpose
A

A question or general statement about the thing we want to test.
Sometimes referred to as the Purpose.

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5
Q
  1. Hypothesis
A

A prediction of the outcome of a test.
We use a statement with IF and THEN and BECAUSE.

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6
Q

Independent Variable (IV)

A

The independent variable is the one
being manipulated or changed during
the experiment. It is always placed
on the x-axis or horizontal axis.

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7
Q

Dependent Variable (DV)

A

The dependent variable is the
observed result of the independent
variable being changed. The
dependent variable is always placed
on the y-axis or vertical axis.

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8
Q
  1. Materials
A

List of all equipment and apparatus needed to carry out the investigation.

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9
Q
  1. Procedure
A

A list of steps in order, used to test out hypothesis (in past tense).

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10
Q
  1. Observation
A

An observation is a statement describing a fact with our senses.

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11
Q

Inference

A

An inference is a statement based on your background knowledge of the facts.

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12
Q

Observations (2 types)

A

Qualitative:
Observing something with our senses

Quantitative:
Measuring to collect numerical data

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13
Q
  1. Analysis
A

A summary of key trends in the data collected. May include calculations or a graph.

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14
Q
  1. Discussion
A

Discuss how your results relates to the real world. Answer questions related to the lab assigned by teacher
such as possible sources of error.

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15
Q
  1. Conclusion
A

Use the 3-step conclusion:

The hypothesis stated that…

The observations showed that….

Therefore the hypothesis was accepted OR rejected

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16
Q

Scientific Method (Steps)

A
  1. Problem/Purpose
  2. Hypothesis
  3. Materials
  4. Procedure
  5. Observations
  6. Analysis
  7. Discussion
  8. Conclusion
17
Q

WHMIS

A

Workplace.Hazardous.Materials. Information.System

18
Q

MSDS

A

Materials.Safety.Data.Sheet:

Contains important information such as storage information and safe clean up if spilled.

19
Q

HHPS

A

Household.Product.Symbols

20
Q

Safety Equipment

A

Eye Wash

Fire Blankets

Fire Extinguishers

Fire Exits

First Aid Kit

21
Q

Lab Safety Rules

A

Read everything thoroughly before you begin doing
anything

No food or beverages.

Leave coats and backpacks in locker

Keep aisles clear

No running

Do not leave experiments unattended and extinguish
burners when away from desk

Do not perform unauthorized experiments.

Never work alone in the lab.

Wear goggles at all times.

Report all accidents and broken glass
immediately to your teacher.

22
Q

Dress Appropriately

A

Tie back long hair.

Do not wear loose sleeves.

Long jewelry must be removed

Do not wear sandals.

Do not wear winter coats.

23
Q

Personal Protective Equipment

A

Wear chemical splash goggles
and protective shoes.

Wear chemical resistant gloves

Wear a lab coat and/or a chemical resistant apron

24
Q

Graph (Definition)

A

Graphs are pictorial diagrams that represent numerical data.

25
Q

A data table must have…

A

a title, rows, columns, and heads.

26
Q

Line Graph (Definition)

A

Line graphs show data plotted as points that are connected by a line.
Line graphs are often used to show change over time and can be used
to compare two or more sets of data.

27
Q

A bar graph must have…

A

two axes, a horizontal axis and a
vertical axis. Generally the horizontal axis is labeled and the vertical axis is divided. The data are not related so the bars do not touch.

28
Q

A circle graph is a convenient way to show…

A

the relative sizes of the parts that form an entire body of data.

29
Q

Under what circumstance would each of the following types
of graphs be best used? 1. Line Graph 2. Bar Graph 3. Circle Graph

A
  1. Line graphs are often used to show change over time and can be used to
    compare two or more sets of data.
  2. Bar graphs are useful for showing comparisons of data collected by counting.
  3. Circle graphs are best used to give the viewer an overall or broad picture
    view of smaller groups of data and how the smaller groups fit into the whole.
30
Q

How is a graph similar to a data table?

A

Both are methods of organizing information.

31
Q

Does a steep curve on a line graph indicate a rapid or slow rate of change?

A

Rapid

32
Q

What is an advantage of using multiple lines on the same graph?

A

It allows you to show comparisons between different groups of data.

33
Q

Controlled Variables

A

A controlled variable in scientific experimentation is any variable which is constant and unchanged.

Science (1 decks)

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