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Activity B:
Identification
practice
Get the Gizmo ready
• Select the Canadian Rockies Buttercups key
• Select Organism A
Introduction: Dichotomous keys are written for small, specific groups of organisms. For
example, each dichotomous key in this Gizmo is used to identify six to eight related species
found within a geographic region.
Goal: Identify a variety of organisms using dichotomous keys.
1. Practice Use the Gizmo's dichotomous key to identify all the buttercups.
Canadian Rockies Buttercups
Common name
Scientific name
Organism
A
B
С
D
E
F
2. Analyze Which traits were used to identify the flowers, and which of these traits did you
think were most useful?
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answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

the right answer is c i just did the question.