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Scientific Variables and observations/inferences Flashcards | StudBud
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Scientific Variables and observations/inferences
Scientific Variables and observations/inferences
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1
What is the IV in the hypothesis ‘Eating cheese gives you nightmares’?
Nightmares
Eating cheese
2
Find one quantitative or qualitative observation.
I have three Mercedes Benz vehicles
The Mercedes Benz is colored white and black
That Mercedes Benz is awesome!
Mercedes Baguio is a great person!
3
A biologist wants to see how water temperature affects health of sea turtles? What is the IV?
weight of sea turtle
water temperature
health of sea turtle
sea turtle diet
4
Quantitative or Qualitative
Qualitative
Quantitative
5
Which brand of fertilizer will make a farmer's corn crop grow the most? What is the DV?
temperture
Growth of corn
type of soil
type of fertilizer
6
An athlete wants to see which sports shake helps him build bigger muscles. What is the DV?
Gym he goes to
Muslce size
Type of sports drink
Exercise done
7
In the experiment to test this hypothesis what is the DEPENDENT VARIABLE?
amount of water
type of steel wool
amount of steel wool used
rate of rusting
8
Observation or Inference?
Observation
Inference
9
The hypothesis in a scientific investigation is_______.
The prediction on what will happen during the experiment.
The supplies you use for the investigation.
The reason you do an experiment.
The observations collected from the experiment.
10
Is it an observation or inference, when you use your prior knowledge to figure out an answer?
Inference
Observation
11
What is the dependent variable in this hypothesis?
the height
the fuel
the mass
the rocket
12
An athlete wants to see which sports shake helps him build bigger muscles. What is the IV?
Type of sports drink
Equipment he uses
Size of muscles
Gym he goes to
13
Quantitative or Qualitative observation? "Red bicycle."
Qualitative
Quantitative
14
Quantitative or Qualitative observation? "The hamster weighs 0.7 pounds."
Quantitative
Qualitative
15
Quantitative or Qualitative observation? her shirt is grey.
Quantative
Qualitative
16
is height a quantitative or qualitative observation
quantitative
qualitative
17
Observation or Inference?
Observation
Inference
18
Quantitative or Qualitative observation? "20 buses in the parking lot"
Quantitative
Qualitative
19
In a scientific experiment, the one variable that is changed to test hypothesis is what?
constant
independent
dependent
control
20
How does the height of the ramp affect the speed of a toy car? What is the DV?
height of the ramp
speed of the toy car
type of car
type of wood ramp made from
21
Observation or Inference?
Observation
Inference
22
Is it an observation or inference when you use your five senses to have an accurate answer?
Inference
Observaton
23
Which brand of fertilizer will make a farmer's corn crop grow the most? What are two controlled (constants) variables?
growth of corn and type of soil
amount of water and type of soil
growth of corn and type of fertilizer
type of soil and typr of fertilizer
24
Is it an observation or inference? That boy has on a yellow shirt.
inference
observation
25
What variable in your experiment is described by the "then" part of your hypothesis?
controlled
concentrated
independent/ manipulated
dependent/ responding
26
The car is red. Is this a quantitative or qualitative observation?
Quantitative
Qualitative
27
Which brand of fertilizer will make a farmer's corn crop grow the most? What is the IV?
temperature
Fertilizer
type of soil
growth of corn
28
What is the IV in the hypothesis: If co2 is added to the atmosphere, then the temperature of the Eart will rise.
the atmosphere
presence of co2
the Earth
temperature of the Earth
29
Observation or Inference
Observation
Inference
30
is "the cup has spots on it" an observation or inference
inference
observation
31
There are 8 apples. Is this a quantitative or qualitative observation?
Quantitative Observation
Qualitative Observation
32
Which is a correctly written hypothesis?
Do people like chocolate chip cookies best?
If I study for a test, then I will make a better grade.
I study gor a test, then I will make a better grade.
How long does it take for soda to go flat?
33
Quantitative or qualitative observation?
qualitative
quantitative
34
What is the IV in the hypothesis? Drinking energy drinks makes people more aggressive.
lack of aggression
aggression
no energy drink
energy drink
35
The spider has 8 legs. Quantitative or qualitative observation?
Qualitative
Quantitative
Neither
36
Observation or Inference?
Inference
Observation
37
How does the height of a ramp affect the speed of a toy car? What is the IV?
type of car
Height of the ramp
speed of the toy car
width of the ramp
38
A biologist wants to see how water temperature affects health of sea turtles. What is the DV?
diet of sea turtle
weight of sea turtle
health of sea turtle
water temperature
39
quantitative or qualitative
all of the above
qualitative
quantitative
neither
40
Does quantitative or qualitative observations are expressed in numbers or amounts?
Qualitative
Quantitative
41
Observation or Inference?
Observation
Inference
42
Which is a correctly written hypothesis
If it is sunny there are no clouds in the sky because____________
Its sunny cause there are no clouds in the sky.
If it is sunny, then there are no clouds in the sky because ___________
Clouds are the reason the sun is out and shining.
43
In a hypothesis the ___ variable is changed, and the ___ variable what's measured in response.
independent; dependent
dependent; independent
independent; control
control; dependent
44
Observation or Inference?
Inference
Observation
45
What is the IV in the hypothesis?
If I add water to the bean plants, then they will grow taller.
the growth of fruit
how many days plants are watered
Height of bean plant
the amount of water received
46
Observation or Inference?
Inference
Observation
47
An athlete wants to see which sports shake helps to build bigger muscles. What are two controlled variables(constants)?
drink flavor and tool
Gym and sports drink
size of muscles and gym equipment
type of exercise and measuring tool
