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Using classification keys

4th grade (Year 5 in England) · 16 questions · Common Core: NGSS.SEP 4, NGSS.3-LS4-2 · England: KS2 Y4 Living things and their habitats, KS2 Y6 Living things and their habitats

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Score/ 16

1
Question 1
What are microorganisms?
- A. baby animals
- B. living things too small to see without a microscope
- C. tiny plastic pieces
- D. very small rocks
2
Question 2
What makes a good question in a classification key?
- A. It has many possible answers.
- B. It has a clear yes or no answer you can observe.
- C. It asks which animal you like best.
- D. It asks whether the animal is cute.
3
Question 3
Key: 1. Has needle-shaped leaves? Yes → go to 2. No → go to 3. 2. Needles in bunches of two? Yes → pine. No → spruce. 3. Leaves with lobes (rounded bumps)? Yes → oak. No → beech. A tree has needles in bunches of two. What is it?
- A. pine
- B. oak
- C. beech
- D. spruce
4
Question 4
Scientists sort living things into large groups. Which is a kingdom of living things?
- A. fungi
- B. metals
- C. rocks
- D. liquids
5
Question 5
Which question would split a crab and a jellyfish?
- A. Is it an animal?
- B. Is it alive?
- C. Does it live in the sea?
- D. Does it have legs?
6
Question 6
Key: 1. Has feathers? Yes → go to 2. No → go to 3. 2. Can fly? Yes → robin. No → penguin. 3. Has fur? Yes → rabbit. No → frog. An animal has no feathers and no fur. What is it?
- A. frog
- B. robin
- C. rabbit
- D. penguin
7
Question 7
Why are mushrooms not classed as plants?
- A. They cannot make their own food by photosynthesis.
- B. They are not alive.
- C. They are too small.
- D. They grow in soil.
8
Question 8
Which question would split a bat and a pigeon?
- A. Is it a vertebrate?
- B. Does it have wings?
- C. Does it have feathers?
- D. Can it fly?
9
Question 9
Key: 1. Has feathers? Yes → go to 2. No → go to 3. 2. Can fly? Yes → robin. No → penguin. 3. Has fur? Yes → rabbit. No → frog. An animal has feathers but cannot fly. What is it?
- A. rabbit
- B. penguin
- C. frog
- D. robin
10
Question 10
Why are mushrooms not classed as plants?
- A. They grow in soil.
- B. They are too small.
- C. They are not alive.
- D. They cannot make their own food by photosynthesis.
11
Question 11
Which question would split a snake and a lizard?
- A. Is it a reptile?
- B. Does it have a backbone?
- C. Does it have scales?
- D. Does it have legs?
12
Question 12
Key: 1. Has feathers? Yes → go to 2. No → go to 3. 2. Can fly? Yes → robin. No → penguin. 3. Has fur? Yes → rabbit. No → frog. An animal has feathers but cannot fly. What is it?
- A. penguin
- B. rabbit
- C. frog
- D. robin
13
Question 13
Why are mushrooms not classed as plants?
- A. They are not alive.
- B. They cannot make their own food by photosynthesis.
- C. They are too small.
- D. They grow in soil.
14
Question 14
Which question would split a crab and a jellyfish?
- A. Is it alive?
- B. Does it live in the sea?
- C. Does it have legs?
- D. Is it an animal?
15
Question 15
Key: 1. Has legs? Yes → go to 2. No → go to 3. 2. Has 6 legs? Yes → beetle. No → spider. 3. Has a shell? Yes → snail. No → earthworm. An animal has no legs and no shell. What is it?
- A. snail
- B. beetle
- C. spider
- D. earthworm
16
Question 16
Carl Linnaeus gave each species a two-part scientific name. Which is an example?
- A. Mammal Animal
- B. Homo sapiens
- C. Tree Plant
- D. Big Cat

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