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Primary Science · Year 5Chapter 2 · Life cycles of animals
Year 5 · Chapter 2

Life cycles of animals

By the end of this chapter you will be able to

  • Explain what a life cycle is, and name the stages in order
  • Describe the life cycle of a mammal, and say how its young are fed
  • Describe the life cycle of an amphibian, including the tadpole stage
  • Describe the life cycle of an insect, including the caterpillar and the chrysalis
  • Describe the life cycle of a bird, and compare the four life cycles

You should already know

  • Animal groups, and features of fish, birds, mammals, amphibians and reptiles (Year 3 and Year 4 Science)
  • The life cycle of a flowering plant (Year 3 Science, Chapter 4)

Where this leads

  • Reproduction in plants and animals (Year 5 Science, Chapter 3)
  • Growing up to old age in humans (Year 5 Science, Chapter 4)

National Curriculum for England, Key Stage 2 science, Year 5. Content: LH1 describe the differences in the life cycles of a mammal, an amphibian, an insect and a bird.

Exercise P  Do you remember?

1
FIn a flowering plant, what is the name for the transfer of pollen from one flower to another? Write the word.
2
FWhat is the name for a baby cat? Write the word.
3
FWhat is the name for a young frog that lives in water and has a tail? Write the word.
4
FWhich part of a flowering plant holds the plant up? Write the word.
5
FWrite the word for an animal with feathers and a beak.
2.1

What is a life cycle?

Year 5
LH1: describe the differences in the life cycles of a mammal, an amphibian, an insect and a bird
Video lesson: What is a life cycle?Coming soon
Story. Class 5 looks at pictures of four animals: a cat, a frog, a butterfly and a blackbird. “Each one starts as something small, and then grows,” says Mr Patel. “Let’s find out how they are different.”

A life cycle is the series of stages that a living thing goes through. It starts as a young animal, grows into an adult, and can have young of its own. The cycle then goes round again.

The four groups in this chapter start life in different ways. A mammal is usually born alive and fed on milk. An amphibian usually starts as an egg in water. An insect starts as an egg and changes its shape. A bird starts as an egg with a hard shell.

GroupExampleHow the young startWhere the young developWhat the young need first
Mammalcatborn alive (most mammals)inside the mother, then fed on milkmilk from the mother
Amphibianfrogeggs laid in water, as spawnin water, as tadpoleswater to breathe through gills
Insectbutterflyeggs laid on a leafas a caterpillar, which eats leavesleaves to eat
Birdblackbirdeggs with hard shells, in a nestin the egg, then fed by its parentswarmth and food from its parents
Number of stages shown for each life cycle3Mammal4Amphibian4Insect4Bird
Bar chart: the number of stages shown for each life cycle. Mammal 3, amphibian 4, insect 4, bird 4.

Key ideas

  • A life cycle is the series of stages a living thing goes through, from young to adult, and round again.
  • Mammals are usually born alive, and fed on milk.
  • Amphibians, insects and birds usually start life as eggs, but in different ways.
  • Most mammals give birth to live young. Not every animal lays eggs.
Worked example 2.1.1
Look at the table in section 2.1. Which group lays its eggs in water, as spawn? Write the word.

Method. Read the column about how the young start.

  1. Find the column. The column How the young start tells us how each group begins life.
    How the young start
  2. Find the row with spawn. The amphibian row says eggs laid in water, as spawn.
    in water, as spawn
  3. Write the answer.
    amphibian

Check. A frog is an amphibian, and its spawn is laid in water. ✓

Worked example 2.1.2
Look at the table in section 2.1. Which group starts life as an egg laid on a leaf? Write the word.

Method. Read the row for each group.

  1. Compare the rows. The row for the insect says eggs laid on a leaf.
    eggs laid on a leaf
  2. Name the group. The insect is the group that starts life as an egg laid on a leaf.
    insect
  3. Write the answer.
    insect

Check. A butterfly lays its eggs on a leaf. ✓

Worked example 2.1.3
Which group of animals is usually born alive, and fed on milk from its mother? Write the word.

Method. Think about how mammals begin life.

  1. Think about the young. Most mammals give birth to live young, and feed them on milk.
    born alive, fed on milk
  2. Name the group. The group that does this is the mammal group.
    mammal
  3. Write the answer.
    mammal

Check. A cat feeds its kittens on milk. ✓

Watch out

Watch out: not every animal hatches from an egg. Most mammals give birth to live young. Do not say that all animals lay eggs.

Try it (with your teacher or a grown-up). Look at pictures of four animals in a library book, or on a poster, with your teacher. Write each animal’s name in a table. Then write what its young look like when they are born or hatched. Which animals start life as eggs?

Exam tip

Grown-up tip. Ask: “How does this animal start its life? What does it need when it is young?” Let your child use the words life cycle and stage.

Exercise 2A  What is a life cycle?

1
FWhat is the name for the series of stages an animal goes through, from young to adult and back to young again? Write the words.
2
FWhich group of animals is usually born alive, rather than hatching from an egg? Write the word: mammal, amphibian, insect or bird.
3
FWhich group lays its eggs in water, as spawn? Write the word: mammal, amphibian, insect or bird.
4
FWhich group has eggs with hard shells, laid in a nest? Write the word: mammal, amphibian, insect or bird.
5
FWhich group has six legs? Write the word: mammal, amphibian, insect or bird.
6
FHow many stages does the bird life cycle in section 2.5 show? Write the number.
7
FLook at the bar chart in section 2.1. How many stages does the mammal life cycle show? Write the number.
8
PSLook at the bar chart in section 2.1. How many of the four groups show 4 stages? Write the number.
9
PSPriya says every animal lays eggs. Is she right? Write yes or no.
10
PSWrite the word for the young stage of an insect that eats leaves and looks different from the adult.
11
PSWorking scientifically. Compare two groups. Which group has young that start as eggs with hard shells, laid in a nest, and fed by their parents? Write the word.
12
RExplain why a life cycle is called a cycle. Write one sentence.
2.2

Life cycle of a mammal

Year 5
LH1: the life cycle of a mammal, such as a cat
Video lesson: Life cycle of a mammalComing soon
Story. Tom’s cat has a litter of kittens in the airing cupboard. “They came out alive, not from eggs,” says Tom. “Their mum feeds them milk, and one day they will be cats too.”

A cat is a mammal. Mammals have hair or fur, and most mammals give birth to live young. The young develop inside the mother, and they are fed on milk from the mother after they are born.

The young grow and learn, and become adults. Adults can have young of their own, and the life cycle goes round again.

Mammal (cat)babyborn aliveyoungdrinks milkadulthas youngthe life cycle goes round
The life cycle of a cat: a baby born alive, a young cat that drinks milk, and an adult cat that can have young.

Key ideas

  • Most mammals give birth to live young.
  • Mammals feed their young on milk.
  • Mammals have hair or fur.
  • The young grow into adults, which can have young of their own.
Worked example 2.2.1
Look at the mammal life cycle in section 2.2. Which stage comes before the young cat? Write the word.

Method. Read the pictures in order.

  1. Read the first stage. The first stage is the baby, which is born alive.
    baby
  2. Read the next stage. The young cat comes after the baby.
    young cat comes next
  3. Write the answer.
    baby

Check. The baby is the stage before the young cat. ✓

Worked example 2.2.2
Is a cat a mammal? Write yes or no, and give a reason from the list of features in section 2.2.

Method. Check the features of a mammal.

  1. Check the features. A cat has fur, and it feeds its young on milk.
    fur and milk
  2. Decide. Because it has fur and feeds its young on milk, a cat is a mammal.
    yes
  3. Write the answer.
    yes

Check. A cat has fur and feeds its young on milk. ✓

Worked example 2.2.3
Tom says a baby cat hatched from an egg. Is he right? Write yes or no.

Method. Think about how a mammal begins life.

  1. Think about the baby. A baby cat is born alive, so it does not hatch from an egg.
    born alive
  2. Decide. So Tom is not right.
    no
  3. Write the answer.
    no

Check. Most mammals give birth to live young. ✓

Watch out

Watch out: a mammal’s young are born alive and fed on milk. They do not hatch from eggs, as the young of a bird do.

Try it (with your teacher or a grown-up). Look at a photograph of a cat, a dog or a rabbit with its young, in a book or on a grown-up’s phone. Count the stages you can see: a baby, a young animal, and an adult. Write one sentence about how the young are fed.

Exam tip

Grown-up tip. Ask: “How does a mammal begin its life? What do its young drink?” Let your child explain the stages in order.

Exercise 2B  Life cycle of a mammal

1
FAre kittens born from eggs, or born alive? Write eggs or alive.
2
FWhat do kittens drink from their mother? Write one word.
3
FFill in the gap: mammals have hair or ___. Write one word.
4
FLook at the mammal life cycle in section 2.2. How many stages are shown? Write the number.
5
FLook at the mammal life cycle in section 2.2. Write the word for the last stage shown.
6
FFill in the gap: most mammals give birth to ___ young. Write one word.
7
FTrue or false: most mammals hatch from eggs. Write true or false.
8
FPut these stages in order, starting with the first: adult, baby, young. Write the first word.
9
PSTom says his cat’s kittens hatched from eggs. Is he right? Write yes or no.
10
PSWorking scientifically. Record a difference. Write one way the young of a mammal are different from the young of a bird. Write one sentence.
11
RExplain why a mammal mother must look after her young after they are born. Write one sentence.
2.3

Life cycle of an amphibian

Year 5
LH1: the life cycle of an amphibian, such as a frog
Video lesson: Life cycle of an amphibianComing soon
Story. Mia finds a clump of jelly in her school pond. Her teacher says: “That is frog spawn. Each dot is an egg. In a few weeks, the eggs will become tadpoles that breathe through gills.”

A frog is an amphibian. Many amphibians start life as eggs laid in water. Frog eggs are laid together, as spawn.

The egg hatches into a tadpole. A tadpole has a tail, and no legs. It breathes through gills, and it lives in water.

Over time, the tadpole grows legs and develops lungs for breathing air. It becomes a froglet, and then an adult frog. An adult frog can live on land and in water.

Amphibian (frog)eggin spawntadpolegillsfrogletlegsadult frogthe life cycle goes round
The life cycle of a frog: egg in spawn, tadpole with a tail and gills, froglet with legs, and an adult frog.

Key ideas

  • Frogs lay their eggs in water, as spawn.
  • A tadpole breathes through gills, and has a tail but no legs.
  • A froglet grows legs and lungs, and then becomes an adult frog.
  • An adult frog can live on land and in water.
Worked example 2.3.1
Look at the amphibian life cycle in section 2.3. Which stage comes after the egg? Write the word.

Method. Read the pictures in order.

  1. Read the first stage. The first stage is the egg, in spawn.
    egg
  2. Read the next stage. The egg hatches into a tadpole.
    tadpole
  3. Write the answer.
    tadpole

Check. A tadpole hatches from the egg. ✓

Worked example 2.3.2
What does a tadpole breathe with, at first? Write the word.

Method. Read the description of the tadpole.

  1. Read the description. The tadpole breathes through gills, and lives in water.
    gills
  2. Name the breathing organ. So the answer is gills.
    gills
  3. Write the answer.
    gills

Check. The gills take oxygen from the water. ✓

Worked example 2.3.3
Which stage of a frog has legs and lungs, and is becoming an adult? Write the word.

Method. Read the stages in section 2.3.

  1. Find the stage with legs. The froglet grows legs and lungs as it becomes an adult.
    legs and lungs
  2. Name the stage. So the answer is froglet.
    froglet
  3. Write the answer.
    froglet

Check. A froglet is a young frog that is nearly ready to live on land. ✓

Watch out

Watch out: the tadpole is not a small adult frog. It has a tail and gills, and it does not have legs at first.

Try it (with your teacher or a grown-up). With your teacher, look at frog spawn or tadpoles in a school pond or a clear tub of pond water. Draw one tadpole, with its tail and gills if you can see them. Never take spawn from the wild. Wash your hands after touching pond water, and return any animals to the water.

Exam tip

Grown-up tip. Ask: “What is the stage before the frog? How does a tadpole breathe?” Keep children well away from deep water.

Exercise 2C  Life cycle of an amphibian

1
FWhere are frog eggs laid? Write the word: water or land.
2
FWhat is the name for a frog’s eggs laid together in water? Write the word.
3
FWhich stage of a frog breathes with gills? Write the word.
4
FWhat do tadpoles breathe with at first? Write the word.
5
FWhich stage of a frog grows legs and lungs? Write the word.
6
FHow many stages are shown in the amphibian life cycle in section 2.3? Write the number.
7
FLook at the amphibian life cycle in section 2.3. Which stage comes after the tadpole? Write the word.
8
FDoes a tadpole need water to live? Write yes or no.
9
FTrue or false: an adult frog can live on land and in water. Write true or false.
10
PSRuby says a tadpole looks like a small adult frog with a tail. Is she right? Write yes or no.
11
PSWorking scientifically. Plan how to observe. Which stage comes first in a frog’s life cycle? Write the word.
12
RExplain why frog spawn should be left in its own pond, rather than moved to a classroom tank. Write one sentence.
2.4

Life cycle of an insect

Year 5
LH1: the life cycle of an insect, such as a butterfly, including complete change of shape
Video lesson: Life cycle of an insectComing soon
Story. Ruby sees a caterpillar eating a leaf in the school garden. Her grandad says: “In a few weeks it will rest in a case, and then it will come out as a butterfly.” Ruby cannot believe it.

A butterfly is an insect. Insects have six legs, and their bodies have three main parts.

A butterfly lays its eggs on a leaf. The egg hatches into a caterpillar, which eats leaves and grows. The caterpillar then forms a chrysalis, a case where it rests and changes shape. The adult butterfly comes out of the chrysalis.

The adult looks very different from the caterpillar. The change of shape is called metamorphosis.

Insect (butterfly)eggon a leafcaterpillareatschrysalisrestsadult butterflythe life cycle goes round
The life cycle of a butterfly: egg on a leaf, caterpillar that eats, chrysalis that rests, and an adult butterfly.

Key ideas

  • Insects have six legs and three main body parts.
  • A butterfly lays its eggs on a leaf.
  • The caterpillar eats leaves and grows.
  • In the chrysalis the caterpillar changes shape, and an adult butterfly comes out.
Worked example 2.4.1
Look at the insect life cycle in section 2.4. What stage comes after the caterpillar? Write the word.

Method. Read the pictures in order.

  1. Read the stages. The stages are egg, caterpillar, chrysalis and adult butterfly.
    caterpillar, chrysalis
  2. Name the next stage. The stage after the caterpillar is the chrysalis.
    chrysalis
  3. Write the answer.
    chrysalis

Check. In the chrysalis the caterpillar changes shape. ✓

Worked example 2.4.2
How many legs does an insect have? Write the number.

Method. Think about the features of insects.

  1. Think about the features. Insects have six legs.
    six legs
  2. Write the number. So the answer is six.
    6
  3. Write the answer.
    6

Check. Spiders have eight legs, so they are not insects. ✓

Worked example 2.4.3
Does a butterfly lay its eggs on a leaf? Write yes or no.

Method. Read the description of the life cycle.

  1. Read the description. A butterfly lays its eggs on a leaf.
    on a leaf
  2. Decide. So the answer is yes.
    yes
  3. Write the answer.
    yes

Check. The caterpillar hatches on the leaf, and eats it. ✓

Watch out

Watch out: a caterpillar is not a different kind of animal from the butterfly. It is the young stage of the same butterfly, and it changes shape.

Try it (with your teacher or a grown-up). With your teacher, look for a caterpillar or a chrysalis on a plant in the school garden. Do not pick it up. Draw the leaf and the caterpillar, and write one thing you notice. Wash your hands after you go outside.

Exam tip

Grown-up tip. Ask: “What does the caterpillar eat? What happens in the chrysalis?” Let your child count the legs on a picture of an insect.

Exercise 2D  Life cycle of an insect

1
FWhere does a butterfly lay its eggs? Write the word: leaf or pond.
2
FWhat does a caterpillar mostly eat? Write one word.
3
FWhat is the name of the stage in which a caterpillar rests and changes shape? Write the word.
4
FHow many legs does an insect have? Write the number.
5
FHow many main body parts does an insect have? Write the number.
6
FHow many stages are shown in the insect life cycle in section 2.4? Write the number.
7
FWhich stage of the butterfly life cycle is the adult? Write the words.
8
FDoes an adult butterfly look like its caterpillar? Write yes or no.
9
PSRuby says a spider is an insect. Is she right? Write yes or no.
10
PSWhich stage comes before the caterpillar in the butterfly life cycle? Write the word.
11
PSWorking scientifically. Observe and describe. Write the word for the young stage of an insect that eats leaves and looks different from the adult.
12
RExplain why a caterpillar looks different from the adult butterfly. Write one sentence.
2.5

Life cycle of a bird, and comparing the four

Year 5
LH1: the life cycle of a bird, and the differences between the four life cycles
Video lesson: Life cycle of a bird, and comparing the fourComing soon
Story. Aisha watches a blackbird build a nest in the hedge. “Her eggs are blue-green,” she says. “Her chicks will need food from their parents. Frogs and butterflies start very differently.”

A blackbird is a bird. Birds have feathers and a beak. A bird lays its eggs in a nest. Each egg has a hard shell.

The egg hatches into a chick. The parents feed the chick until it can grow its feathers. The young bird then leaves the nest, and it can fly. When it is grown, it is an adult bird, and it can lay eggs.

Compare the four life cycles: a mammal is born alive and fed on milk. An amphibian starts as an egg in water, and then becomes a tadpole. An insect starts as an egg on a leaf, and changes shape in the chrysalis. A bird starts as an egg with a hard shell in a nest.

Bird (blackbird)egghard shellchickfedyoungfeathersadult birdthe life cycle goes round
The life cycle of a blackbird: egg with a hard shell, chick fed by its parents, young bird with feathers, and adult bird.
Observations of animals in the class list2mammal2amphibian4insect4bird
Bar chart of a class list of 12 observations of animals: mammal 2, amphibian 2, insect 4, bird 4.

Key ideas

  • Birds have feathers and a beak, and lay eggs with hard shells in a nest.
  • A chick is fed by its parents until it can leave the nest.
  • Each life cycle starts in a different way: born alive, spawn, eggs on a leaf, or eggs in a nest.
  • A table or a bar chart helps you compare the groups.
Worked example 2.5.1
Look at the bird life cycle in section 2.5. Which stage comes after the chick? Write the words.

Method. Read the pictures in order.

  1. Read the stages. The stages are egg, chick, young bird, and adult bird.
    chick, young bird
  2. Name the next stage. The stage after the chick is the young bird.
    young bird
  3. Write the answer.
    young bird

Check. The young bird grows its feathers. ✓

Worked example 2.5.2
What covers a bird’s body? Write the word.

Method. Read the features of birds.

  1. Read the features. Birds have feathers, and a beak.
    feathers and a beak
  2. Name the covering. So the covering is feathers.
    feathers
  3. Write the answer.
    feathers

Check. Feathers help a bird fly. ✓

Worked example 2.5.3
Look at the tally bar chart in section 2.5. Which group has the same number of observations as the birds? Write the word.

Method. Read the bar for the birds.

  1. Read the bird bar. The bird bar shows 4 observations.
    4
  2. Find the matching bar. The insect bar also shows 4 observations.
    insect
  3. Write the answer.
    insect

Check. Both bars reach 4 on the chart. ✓

Watch out

Watch out: a bird’s chick is not a small adult. It hatches from its egg and is fed by its parents, and it grows its feathers before it can fly.

Try it (with your teacher or a grown-up). Watch a bird feeder or a garden from a window, with a grown-up. Count the birds you see in five minutes, and record them in a tally. Never touch a nest or any eggs, and keep a safe distance from wild birds.

Exam tip

Grown-up tip. Ask: “Which group starts life in a nest? Which group is fed on milk?” Let your child compare the four life cycles in a table.

Exercise 2E  Life cycle of a bird, and comparing the four

1
FBirds have feathers and a beak. Write the word for the covering that helps a bird fly: feathers or fur.
2
FFill in the gap: birds lay eggs with hard ___. Write one word.
3
FWhat is a baby bird called? Write the word.
4
FWho feeds a chick in the nest? Write the word: parents or the chick itself.
5
FHow many stages are shown in the bird life cycle in section 2.5? Write the number.
6
FFill in the gap: a young bird leaves its nest when it is able to ___. Write one word.
7
FLook at the tally bar chart in section 2.5. How many observations were of birds? Write the number.
8
FLook at the tally bar chart in section 2.5. How many observations were of mammals? Write the number.
9
PSLook at the tally bar chart in section 2.5. Which two groups had the same number of observations? Write the two names.
10
PSLook at the tally bar chart in section 2.5. How many more observations were of insects than of mammals? Write the number.
11
PSWorking scientifically. Compare two life cycles. Write one way a blackbird’s egg is different from a frog’s egg. Write one sentence.
12
RExplain why a bird’s nest should not be touched by people. Write one sentence.

Chapter summary

SkillMethod
Life cycleA series of stages, from young to adult, which goes round again.
MammalUsually born alive, fed on milk, and has hair or fur. The young grow into adults.
AmphibianEggs laid in water as spawn. A tadpole breathes through gills, then grows legs and lungs.
InsectEggs laid on a leaf. A caterpillar eats leaves, becomes a chrysalis, and then an adult. Six legs.
BirdEggs with hard shells, laid in a nest. A chick is fed by its parents, then grows feathers and can fly.
ComparingEach group starts life in a different way: born alive, spawn, eggs on leaves, or eggs in a nest.

Can you…?

  • I can explain what a life cycle is, and name its stages in order
  • I can describe the life cycle of a mammal, and say how its young are fed
  • I can describe the life cycle of an amphibian, including the tadpole and gills
  • I can describe the life cycle of an insect, including the caterpillar and the chrysalis
  • I can describe the life cycle of a bird, and compare the four life cycles

Key terms

life cycle
the series of stages a living thing goes through, from young to adult, and round again
mammal
an animal with hair or fur, which usually gives birth to live young and feeds them on milk
amphibian
an animal that usually starts life as an egg in water, and can live on land and in water as an adult
insect
an animal with six legs and three main body parts
bird
an animal with feathers and a beak, which lays eggs with hard shells
spawn
the clump of eggs laid by frogs in water
tadpole
the young stage of a frog, which lives in water and breathes through gills
caterpillar
the young stage of a butterfly, which eats leaves
chrysalis
the stage in which a caterpillar rests and changes shape
metamorphosis
a big change of shape during the life cycle of an insect
chick
a young bird that hatches from an egg
nest
a place where a bird lays its eggs and raises its chicks

Exercise 2Z  Check-up

1
Which group lays its eggs in water, as spawn? Write the word: mammal, amphibian, insect or bird.
2
Which stage of a frog breathes with gills? Write the word.
3
Look at the insect life cycle. What stage comes between the caterpillar and the adult butterfly? Write the word.
Insect (butterfly)eggon a leafcaterpillareatschrysalisrestsadult butterflythe life cycle goes round
4
Look at the mammal life cycle. How many stages are shown? Write the number.
Mammal (cat)babyborn aliveyoungdrinks milkadulthas youngthe life cycle goes round
5
How many legs does an insect have? Write the number.
6
True or false: most mammals hatch from eggs. Write true or false.
7
Look at the bird life cycle. What covers a bird’s body? Write the word.
Bird (blackbird)egghard shellchickfedyoungfeathersadult birdthe life cycle goes round
8
Look at the bar chart of the four groups. How many groups show 4 stages? Write the number.
Number of stages shown for each life cycle3Mammal4Amphibian4Insect4Bird
9
Look at the tally bar chart. How many observations were of amphibians? Write the number.
Observations of animals in the class list2mammal2amphibian4insect4bird
10
A life cycle is a series of stages. Write the word for the change of shape that an insect goes through.

Total 15 marks. Allow about 15 minutes.

Exercise 2X  Practice test questions

1
FWrite the word for the young stage of a frog that breathes with gills.[1 mark]
2
FHow many legs does an adult insect have? Write the number.[1 mark]
3
FWhich group of animals is usually born alive, rather than hatching from eggs: mammals, amphibians or birds? Write the word.[1 mark]
4
FWrite the word for a bird’s young that hatches from an egg.[1 mark]
5
FLook at the insect life cycle picture. Write the stage that comes between the caterpillar and the adult butterfly.
Insect (butterfly)eggon a leafcaterpillareatschrysalisrestsadult butterflythe life cycle goes round
[1 mark]
6
FCompare a frog and a butterfly. Where does the young of each develop? Write the two places.[2 marks]
7
FExplain why a mammal’s young need milk after they are born. Write one sentence.[2 marks]
8
FLook at the bar chart of the four groups. How many groups show 4 stages? Write the number.
Number of stages shown for each life cycle3Mammal4Amphibian4Insect4Bird
[1 mark]
9
FDescribe two differences between the life cycle of a frog and the life cycle of a blackbird. Write two sentences.[3 marks]
10
FLook at the tally bar chart. Mo says: “Birds were seen more often than mammals in this class list.” Is Mo right? Write yes or no, and give the two numbers.
Observations of animals in the class list2mammal2amphibian4insect4bird
[2 marks]
← Chapter 1: Working scientifically: planning and reportingChapter 3: Reproduction in plants and animals →

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