Scientific Investigation

Question 1

Where is science limited to?

Answer 1

It can be carried out in many fields.

Question 2

Name 2 important principals of science.

Answer 2

A collective endeavor, we build on past knowledge and progress with cooperation.

Self correcting - mistakes or fraud are easily found and corrected.

Question 3

What makes a good hypothesis?

Answer 3

It has 1 dependent variable

An attempt at disproving can be tried

It can be tested

Question 4

Name the 6 steps of the scientific method

Answer 4

1. Ask a question / make observation
2. Do background research
3. Construct a hypothesis (prediction a or not prediction a)
4. Test / investigate / experiment
5. Analyze data and draw conclusions (prediction a or not a) (display, statistical analysis)
6. Communicate results and adapt

Question 5

Independent variable

Answer 5

The thing that is changed in order to test something.

Question 6

Controlled variables

Answer 6

The things that are kept constant and not changed by the scientist, to make the experiment fair.

Question 7

Control (group)

Answer 7

Where the variable under consideration is kept under natural conditions so that a comparison can be obtained from the results.

Question 8

Dependent variable

Answer 8

The outcome expected from the experiment which is reliant on hoe the independent changes.

Question 9

Aim

Answer 9

A statement that describes the prupose or reaosn for doing an experiment. It usually begins with an action (to investigate/ to determine) and ends in a relation between the indipendent and dependant variables. (Influence of x on y/ effect of x on y)

Question 10

Idea

Answer 10

A thought or suggestion as to a possible course of action.

Question 11

Hypothesis

Answer 11

Propositions set forth as an explanation for the occurrence of a a phenomena, either just as a provisional conjecture to guide experimentation or accepted as highly probably with established facts.

Question 12

Theory

Answer 12

A coherent group if propositions formulated to explain a group of facts or phenomena int he natural world and repeatedly confirmed through experimentation or observation. Widely accepted but not yet a law.

Question 13

Law/ fact

Answer 13

A phenomenon that has been proven to occur whenever certain conditions are met or exist. Its a formal statement about such a phenomenon.

Question 14

Name the 9 parts of the scientific report

Answer 14

Idea, aim, hypothesis, materials and method, results, conclusion, discussion, acknowledgements, references/bibliography

Question 15

What is discrete data?

Answer 15

Can count it
Can only take on a specific value
Data is put in categories
Cant have decimals

Question 16

What graphs are used for discrete data?

Answer 16

Line graphs
Bar graphs
Pie charts

Question 17

What is continuous data?

Answer 17

Can take on any value between min and max (usually class intervals)
Cant count easily because it can go on and on
Independent variables are linked to one another
You need to measure it (age, height)

Question 18

What graphs are used for continous data?

Answer 18

Line graphs

Question 19

If the average is skewed what can you use to see a better overview?

Answer 19

Mode

Average skewed because of extremes on either end

Question 20

What is the formula for magnification?

Answer 20

M = drawing size
_______________
actual size

Question 21

Convert mm to micro meters

Answer 21

x 1000

Question 22

If M is greater than 1?

Answer 22

Enlarged

Question 23

If M is 1?

Answer 23

Same as real life

Question 24

If M is less than 1?

Answer 24

Decreased

Question 25

What is a scientific investigation or science?

Answer 25

A rigorous way of gathering information.