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Course: HIA International — Grade 6
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Curriculum

HIA International — Grade 6

Unit 1: Cells and organisms

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Unit 2: States of matter, atoms and compounds

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Unit 3: The Solar System and energy

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Unit 4: Living organisms and classification

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Unit 5: Metals, non-metals, acids and alkalis

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Unit 6: Sound, the Earth and eclipses

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Unit 7: Microorganisms and food webs

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Unit 8: Chemical reactions

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Unit 9: Electricity and circuits

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Quiz

Using keys – Quiz

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Using keys HIA Science quiz: free practice for HIA International. Work through this Using keys HIA Science quiz and get instant feedback on every answer. If you get stuck, review the 4.5 Using keys – Notes lesson. More practice: HIA International — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 50
  • Passing grade: A-
  • Time limit:
Start Quiz
1.
Which statement correctly describes numbered key?
a feature that can be seen, such as the number of legs or the shape of a leaf
a key written as numbered pairs of statements
a key in which each step offers exactly two choices
a key drawn as a diagram that splits into two at each step
2.
Which statement correctly describes branching key?
working out the name of an unknown organism
a feature that can be seen, such as the number of legs or the shape of a leaf
a key drawn as a diagram that splits into two at each step
a set of questions or statements used to identify an unknown organism
3.
At one step a specimen does not match either choice in a key. What is the best next action?
Recheck the specimen and the previous step for an observation error
Invent a feature that is not present
Choose both routes at random
Ignore all earlier observations
4.
Which practical work belongs to Using Keys?
Use evidence to discuss why viruses sit at the boundary between living and non-living
Use reproductive evidence and observable features to compare organisms
Apply the seven characteristics to living, non-living and once-living examples
Follow paired-choice questions accurately and check identification against observable features
5.
Which statement best expresses the lesson objective about Using keys?
Use a dichotomous key to identify an organism
The terms branching key and dichotomous key are always interchangeable
Evidence is unnecessary when studying Using keys
Every model is an exact copy of reality
6.
Which feature is most suitable for use in an identification key?
Number of legs
How friendly the organism seems
Whether the observer likes its colour
Its imagined personality
7.
Which statement correctly describes key?
a feature that can be seen, such as the number of legs or the shape of a leaf
a key in which each step offers exactly two choices
a set of questions or statements used to identify an unknown organism
working out the name of an unknown organism
8.
A key asks whether an animal has wings, then whether it has one or two pairs of wings. What type of key is this?
A dichotomous key
A food web
A bar chart
A chemical formula
9.
Which pair of statements forms a useful dichotomous choice?
Leaves have parallel veins; leaves do not have parallel veins
The organism is interesting; the organism is beautiful
It may be large; it may also be large
The specimen exists; the specimen is an organism
10.
Which statement correctly describes identification?
working out the name of an unknown organism
a key drawn as a diagram that splits into two at each step
a key written as numbered pairs of statements
a key in which each step offers exactly two choices
11.
Which statement correctly describes dichotomous key?
a key drawn as a diagram that splits into two at each step
a key in which each step offers exactly two choices
a key written as numbered pairs of statements
a feature that can be seen, such as the number of legs or the shape of a leaf
12.
Why should each step in a dichotomous key contain two contrasting choices?
So the user can follow one clear route based on an observable feature
So every organism receives two names
So measurements are never needed
So unrelated organisms always end together
13.
Which statement correctly describes observable feature?
working out the name of an unknown organism
a key written as numbered pairs of statements
a feature that can be seen, such as the number of legs or the shape of a leaf
a set of questions or statements used to identify an unknown organism
14.
Match the term to its correct meaning: observable feature
a key drawn as a diagram that splits into two at each step
a feature that can be seen, such as the number of legs or the shape of a leaf
a set of questions or statements used to identify an unknown organism
a key written as numbered pairs of statements
15.
Match the term to its correct meaning: numbered key
a key in which each step offers exactly two choices
a set of questions or statements used to identify an unknown organism
working out the name of an unknown organism
a key written as numbered pairs of statements
16.
Match the term to its correct meaning: identification
a key in which each step offers exactly two choices
a feature that can be seen, such as the number of legs or the shape of a leaf
a set of questions or statements used to identify an unknown organism
working out the name of an unknown organism
17.
Which term is described as: a key drawn as a diagram that splits into two at each step?
branching key
dichotomous key
numbered key
key
18.
Match the term to its correct meaning: key
a set of questions or statements used to identify an unknown organism
a key written as numbered pairs of statements
a feature that can be seen, such as the number of legs or the shape of a leaf
a key drawn as a diagram that splits into two at each step
19.
Which term is described as: a set of questions or statements used to identify an unknown organism?
key
branching key
numbered key
dichotomous key
20.
Which term is described as: a key in which each step offers exactly two choices?
dichotomous key
numbered key
key
observable feature
21.
Which term is described as: working out the name of an unknown organism?
branching key
numbered key
identification
key
22.
Which term is described as: a key written as numbered pairs of statements?
branching key
key
numbered key
observable feature
23.
Match the term to its correct meaning: branching key
a feature that can be seen, such as the number of legs or the shape of a leaf
a key drawn as a diagram that splits into two at each step
a set of questions or statements used to identify an unknown organism
a key written as numbered pairs of statements
24.
Match the term to its correct meaning: dichotomous key
a set of questions or statements used to identify an unknown organism
a key in which each step offers exactly two choices
a key written as numbered pairs of statements
working out the name of an unknown organism
25.
Which term is described as: a feature that can be seen, such as the number of legs or the shape of a leaf?
branching key
observable feature
dichotomous key
key
26.
Keys use _____ features that can be seen.
hidden
chemical
imagined
observable
27.
A good key question has a clear yes or _____ answer.
often
maybe
no
sometimes
28.
A key where each step gives two choices is a _____ key.
numbered
random
dichotomous
coloured
29.
Working out the name of an unknown organism is called _____.
adaptation
classification
identification
reproduction
30.
A key drawn as a diagram that splits in two is a _____ key.
numbered
circular
written
branching
31.
Each step of a key always leads straight to a name. - True or false?
True
False
32.
Keys can be used for plants as well as animals. - True or false?
True
False
33.
In a dichotomous key each step offers five choices. - True or false?
True
False
34.
Keys can only be used for animals. - True or false?
True
False
35.
Questions about colour can be unreliable in a key because colour may vary. - True or false?
True
False
36.
If you follow a key correctly you should reach only one name. - True or false?
True
False
37.
Each step of a key leads either to another step or to a name. - True or false?
True
False
38.
A numbered key has only one statement at each number. - True or false?
True
False
39.
A good key question has a clear yes or no answer. - True or false?
True
False
40.
Colour is always the most reliable feature to use in a key. - True or false?
True
False
41.
A good key question has a vague answer such as sometimes. - True or false?
True
False
42.
A key is used to measure the mass of an organism. - True or false?
True
False
43.
A numbered key is written as numbered pairs of statements. - True or false?
True
False
44.
In a dichotomous key each step offers exactly two choices. - True or false?
True
False
45.
Keys use observable features such as the number of legs or the shape of a leaf. - True or false?
True
False
46.
Keys use features that cannot be seen, such as what the animal is thinking. - True or false?
True
False
47.
A key is used to identify an unknown organism. - True or false?
True
False
48.
If you follow a key correctly you should reach several possible names. - True or false?
True
False
49.
A branching key is drawn as a diagram that splits into two at each step. - True or false?
True
False
50.
A branching key is a list with no diagram. - True or false?
True
False
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Part of Unit 4: Living organisms and classification — see every lesson and quiz in this unit.
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