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PS-0.1 Observations And Inferences
Test Description: Define, recognize,and differentiate between observations and inferences
Instructions: Answer all questions to get your test result.
1) Science is based on
A
logic
B
observation
C
philosophy
D
deduction
2) In order to make an observation, a scientist
A
uses logical thinking
B
guesses what happened to cause the event he is observing
C
examines other scientists' work and draws conclusions
D
uses his senses
3) Scientists use tools to
A
build hypotheses
B
break down false theories
C
construct concepts
D
extend their senses
4) Which of the following tools could a scientist use to extend his sense of sight?
A
a microscope
B
a loudspeaker
C
a test tube
D
a thermometer
5) Qualitative observations
A
can be used to separate good from bad
B
are preferred by scientists
C
describe a quality such as color or texture
D
always have a number
6) Which of the following statements is a quantitative observation?
A
Earthworms stink.
B
The earthworm is brown.
C
Earthworms make good bait for fishing.
D
The earthworm is 5cm long.
7) What is an inference?
A
a form of observation
B
a wild guess
C
the opposite of a hypothesis
D
an explanation of an observation
8) What is the major rule for making an inference?
A
prepare your inference before you make any observations
B
the inference must be logical
C
use your imagination and be creative
D
the inference must be correct
9) Which of the following statements is a qualitative observation?
A
The robin has two feet.
B
Robins need to eat more food during cold weather than during warm weather.
C
If the temperature of the environment decreases, then the amount of food consumed by a robin will increase.
D
The robin has yellow feet.
10) Which of the following statements is an inference?
A
The boy standing next to the water has red hair.
B
The boy standing next to the water must have been swimming.
C
The boy standing next to the water has two seashells in his hand.
D
The boy standing next to the water has wet hair, clothing, and skin.
*select an answer for all questions
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