Science Skills Test

Question 1

What is Science?

Answer 1

Process that produces information about nature

Question 2

How do we learn about things in
science?

Answer 2

We carry out experiments

Question 3

Testable Questions have:

Answer 3

An independent variable.
A dependent variable.
Controlled variables.

Question 4

1. Problem/Purpose

Answer 4

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

Question 5

2. Hypothesis

Answer 5

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

Question 6

Independent Variable (IV)

Answer 6

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

Question 7

Dependent Variable (DV)

Answer 7

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.

Question 8

3. Materials

Answer 8

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

Question 9

4. Procedure

Answer 9

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

Question 10

5. Observation

Answer 10

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

Question 11

Inference

Answer 11

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

Question 12

Observations (2 types)

Answer 12

Qualitative:
Observing something with our senses

Quantitative:
Measuring to collect numerical data

Question 13

6. Analysis

Answer 13

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

Question 14

7. Discussion

Answer 14

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

Question 15

8. Conclusion

Answer 15

Use the 3-step conclusion:

The hypothesis stated that…

The observations showed that….

Therefore the hypothesis was accepted OR rejected

Question 16

Scientific Method (Steps)

Answer 16

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

Question 17

WHMIS

Answer 17

Workplace.Hazardous.Materials. Information.System

Question 18

MSDS

Answer 18

Materials.Safety.Data.Sheet:

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

Question 19

HHPS

Answer 19

Household.Product.Symbols

Question 20

Safety Equipment

Answer 20

Eye Wash

Fire Blankets

Fire Extinguishers

Fire Exits

First Aid Kit

Question 21

Lab Safety Rules

Answer 21

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.

Question 22

Dress Appropriately

Answer 22

Tie back long hair.

Do not wear loose sleeves.

Long jewelry must be removed

Do not wear sandals.

Do not wear winter coats.

Question 23

Personal Protective Equipment

Answer 23

Wear chemical splash goggles
and protective shoes.

Wear chemical resistant gloves

Wear a lab coat and/or a chemical resistant apron

Question 24

Graph (Definition)

Answer 24

Graphs are pictorial diagrams that represent numerical data.

Question 25

A data table must have...

Answer 25

a title, rows, columns, and heads.

Question 26

Line Graph (Definition)

Answer 26

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.

Question 27

A bar graph must have...

Answer 27

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.

Question 28

A circle graph is a convenient way to show…

Answer 28

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

Question 29

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

Answer 29

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.

Question 30

How is a graph similar to a data table?

Answer 30

Both are methods of organizing information.

Question 31

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

Answer 31

Rapid

Question 32

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

Answer 32

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

Question 33

Controlled Variables

Answer 33

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