Chapter 1 - Keywords

Question 1

Hypothesis

Answer 1

an explanation of an observation that can be tested through experimentation

Question 2

Variable

Answer 2

a condition in an experiment that can be controlled or changed

Question 3

Theory

Answer 3

a well-substantiated explanation of an aspect of the natural world that has been repeatedly tested and confirmed through observation and experimentation

Question 4

Refute

Answer 4

(a hypothesis): submitting evidence that shows that a hypothesis is NOT correct

Question 5

Qualitative Data

Answer 5

descriptive data about a variable, for example colour or behavior

Question 6

Quantitative Data

Answer 6

numerical data that give the quantity, amount or range of a variable, for example concentration of oxygen or number of eggs laid

Question 7

Prediction

Answer 7

a statement of the expected results in an experiment based in the hypothesis being tested

Question 8

Independent Variable

Answer 8

the variable being changed in an experiment

Question 9

Dependent Variable

Answer 9

the variable being measured in an experiment

Question 10

Control Group

Answer 10

a group within an experiment or study that receives exactly the same treatment as the experimental groups with the exception of the variable being tested

Question 11

Control Variable

Answer 11

variables that are not being tested but that must be kept the same in the case they effect the experiment

Question 12

Confounding Variable

Answer 12

a variable that could affect the dependent variable

Question 13

Reliable

Answer 13

results that can be replicated by other people

Question 14

Anomaly

Answer 14

a result or observation that deviates form what is normal or expected. in experimental results it normally refers to one repeated result that does not fit the pattern of the others

Question 15

Meniscus

Answer 15

the curve in the upper surface of a liquid inside a container. it is cause by the surface tension and can be a concave or convex