Lesson Worksheet: Using Classification Keys Science
In this worksheet, we will practice using classification keys to identify and group a variety of living things.
Q1:
Scientists classify living things according to their traits.
Which of the following is the correct definition for the word trait?
- AThe way the organism behaves
- BThe environment an organism lives in
- CA type of adaptation
- DA distinguishing characteristic
Q2:
The animal kingdom is divided into two groups, vertebrates and invertebrates.
What is a vertebrate?
- AAn animal that has a backbone
- BAn animal that does not have a skeleton
- CAn animal that does not have a backbone
- DAn animal that has a skeleton
Q3:
Identify which group this animal belongs to using the given key.
- AFish
- BMammal
- CReptile
- DBird
- EAmphibian
Q4:
Which question could you ask to complete this branching key?
- ADoes it have a long thin stem?
- BDoes it have yellow petals?
- CDoes it have three leaves?
- DDoes it contain seeds?
Q5:
Identify which group this animal belongs to using the given key.
- AReptile
- BMammal
- CBird
- DAmphibian
- EFish
Q6:
Identify which group this animal belongs to using the given key.
- AFish
- BReptile
- CMammal
- DBird
- EAmphibian
Q7:
Identify which group this animal belongs to using the given key.
- ABird
- BMammal
- CAmphibian
- DReptile
- EFish
Q8:
Which animal can be classified as a cold-blooded vertebrate?
- ASpider
- BLeech
- CMillipede
- DPeacock
- ECrocodile
Q9:
Which definition describes a series of questions used to identify unknown plants or animals?
- AAn encyclopedia
- BA bar chart
- CA pie chart
- DA classification index
- EA Venn diagram
Q10:
Scientists classify living things. What does classification mean?
- AGrouping organisms that are similar
- BDescribing the characteristics of an organism
- CObserving organisms under a microscope
- DCounting the number of organisms in a group
- ECreating a display of animals in the classroom
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