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1.3 Experiments Design

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Practice the concepts of independent variable, dependent variable, control variable, experimental group and control group.

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1.3 Experiments DesignOnline version

Practice the concepts of independent variable, dependent variable, control variable, experimental group and control group.

by Jorge Arizpe
1

The moths are attracted by the light of the bulbs at night. Will the color of the light influence the number of moths attracted in one hour? An experiment has been devised where a green bulb, a yellow bulb and a standard bulb are placed. The bulbs are the same size and receive the same amount of electric current. The experiment is carried out for three days at the same time under the same weather conditions. Questions like "light color" and "number of moths attracted" are examples of:

2

The color of the bulb is a/an _____ variable

3

The "number of moths attracted " is a/an _____variable

4

The size of the bulb remains constant in the experiment, which is why it's a/an _____ variable

5

The variable that can be manipulated by the researcher is _______

6

The color of the bulb is a/an _____ variable

7

The number of moths attracted in one hour is a/an _____ variable.

8

The sentence “What bulb color will attract more moths?" is an example of:

9

A bulb of the original color was kept so we could compare the results of the experimental bulbs to it. We could say that this unaltered bulb is a/an____

10

The researcher thinks that “The yellow light will attract less moths”. This sentence is an example of a/an ______

11

"During the nights you can notice that the moths are attracted by the light of spotlights". This sentence is an example of a/an_____

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