Key terms Flashcards

1
Q

hypothesis

A

what the investigation is about and what you will do

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2
Q

independent variable

A

the part of the investigation that you change

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3
Q

dependent variable

A

the part that you measure - the results

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4
Q

control variable

A

to make it a fair test by keeping some things the same

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5
Q

continuous variables

A
  • a line graph
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6
Q

categoric variables

A
  • ordered variables

- bar chart

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7
Q

discrete variables

A
  • line graph with points
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8
Q

random errors

A

errors caused by things we can’t control, or if we happen to make a mistake

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9
Q

systematic errors

A

errors caused by inaccurate equipment

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10
Q

reliability

A

if you and someone else does the same experiment and the results are the same, the results are reliable

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11
Q

range

A

the biggest results take away the smallest

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12
Q

anomaly

A

data that does not fit other results - get rid of it

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13
Q

why do you repeat data?

A

to increase accuracy by taking readings and use an average

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14
Q

problems with anaerobic respiration

A
  • releases much less energy from glucose compared to aerobic

- lactic acid is poisonous waste

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15
Q

average

A

add the results all up and divide by how many results there were

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16
Q

what is respiration?

A

a chemical reaction which happens in every cell of the body

17
Q

aerobic respiration

A

process of giving the body every with oxygen