Animals & Nature · Unit 5
Baby Animals and Families
Eggs and live young, animal parents, and growing up
Reproduction strategies split roughly into two: produce a great many offspring and invest nothing, or produce few and invest heavily. Almost every animal sits somewhere on that line.
The unit covers eggs and live birth, the names for young animals, how much parenting different species do, growing up, and the transformations - metamorphosis - where the young looks nothing like the adult.
This unit breaks down into 18 short steps and 110 questions, starting at difficulty 1 and building to 3. Below you can see exactly what it covers, how the path is structured, and worked examples with explanations.
- Steps
- 18
- Questions
- 110
- Difficulty
- 1-3
What this unit covers
- Baby Animal Names
- Eggs and Live Young
- Amazing Changes
- Growing Up
- Animal Parents
Where this fits
Follows Animal Groups. Connects to the life-cycle content in the class units.
Where people slip
Egg-laying is not the dividing line between reptiles and mammals. Monotremes like the platypus lay eggs and are unambiguously mammals.
How the unit is structured
Baby Animals and Families runs as 18 short steps that unlock in order. 13 are practice rounds and 5 are challenge rounds that pull together everything before them. Questions start at difficulty 1 and climb to 3 as you progress.
Challenge rounds
Example questions
30 real questions from this unit, with the answer and the reason behind it, grouped by what they practise. There are 110 in the unit altogether.
Amazing Changes
- Choose all that applyLevel 2
1. Which insects undergo complete metamorphosis? Pick all that apply.
- Butterflycorrect
- Beetlecorrect
- Beecorrect
- Grasshopper
Butterflies, beetles and bees all pass through a pupal stage.
- Fact or fibLevel 2
2. The axolotl is a salamander that normally stays in its aquatic larval form as an adult.
Answer: True
True. It keeps its feathery gills for life.
- Fill the blankLevel 2
3. A young insect that looks nothing like the adult is called a ____.
- larvacorrect
- nymph
- pupa
- cocoon
Larvae, such as caterpillars and grubs, differ completely from adults.
- Multiple choiceLevel 2
4. What does a caterpillar turn into?
- A butterfly or mothcorrect
- A beetle
- A frog
- A bird
A caterpillar becomes a butterfly or moth after its pupa stage.
- Put in orderLevel 2
5. Put the butterfly life cycle in order.
Answer: Egg -> Caterpillar -> Chrysalis -> Butterfly
Egg, caterpillar, chrysalis, then adult butterfly.
- Build the sentenceLevel 3
6. Build a sentence about metamorphosis.
Answer: Larvae and adults live different lives
Larvae and adults can live very different lives.
Animal Parents
- Choose all that applyLevel 1
7. Which are ways animal parents care for their young? Pick all that apply.
- Bringing foodcorrect
- Keeping them warmcorrect
- Guarding against dangercorrect
- Sending them to school
Feeding, keeping warm and protecting are all forms of care.
- Fact or fibLevel 2
8. Some animals, like most turtles, leave their eggs and never meet their young.
Answer: True
True. The hatchlings must survive entirely on their own.
- Multiple choiceLevel 2
9. Why is parental care more common where young are vulnerable for longer?
- Care raises survival when young are vulnerablecorrect
- Care shortens development
- Care reduces food needs
- Vulnerability makes care pointless
Investment pays off when offspring survival depends heavily on protection and feeding.
- True or falseLevel 2
10. Cooperative breeding occurs when helpers raise young that are not their own.
Answer: True
True. Meerkats and some birds show this behaviour.
- Choose all that applyLevel 3
11. Which behaviours count as parental care? Pick all that apply.
- Guarding eggscorrect
- Provisioning foodcorrect
- Carrying youngcorrect
- Ignoring the nest entirely
Guarding eggs, feeding, carrying and teaching are all forms of care.
- Type the answerLevel 3
12. What is the term for non-parents helping to raise young in a group?
Answer: cooperative breeding
Cooperative breeding is common in social species.
Baby Animal Names
- Choose all that applyLevel 2
13. Which are correct names for young animals? Pick all that apply.
- Joey for a kangaroocorrect
- Cygnet for a swancorrect
- Leveret for a harecorrect
- Puppy for a horse
Joey, cygnet and leveret are all real terms.
- Fill the blankLevel 2
14. A baby deer is called a ____.
- fawncorrect
- foal
- kid
- pup
Fawns have spotted coats that help them hide.
- Match the pairsLevel 2
15. Match each bird to the name of its young.
Answer: Duck = Duckling; Goose = Gosling; Swan = Cygnet; Owl = Owlet
Water birds have their own traditional names for chicks.
- True or falseLevel 2
16. A baby goat is called a kid.
Answer: True
True, and the word for a young child comes from the same root.
- Multiple choiceLevel 3
17. What is a collective noun?
- A word for a group of animalscorrect
- A word for a baby animal
- A scientific species name
- A type of habitat
A word for a group, such as a pride of lions or a murmuration of starlings.
- Type the answerLevel 3
18. What is the collective noun for a large swirling flock of starlings?
Answer: murmuration
A murmuration can contain thousands of birds moving as one.
Eggs and Live Young
- Choose all that applyLevel 1
19. Which animals lay eggs? Pick all that apply.
- Owlcorrect
- Turtlecorrect
- Salmoncorrect
- Elephant
Birds, most reptiles and most fish lay eggs.
- Multiple choiceLevel 1
20. Why do birds sit on their eggs?
- To keep them warm so they can developcorrect
- To flatten them
- To hide from the sun
- To make them hatch smaller
Warmth from the parent's body helps the chick develop inside.
- True or falseLevel 1
21. Frogs lay their eggs in water.
Answer: True
True. Frogspawn is a jelly-covered clump of eggs in a pond.
- Fill the blankLevel 2
22. Warming eggs with body heat until they hatch is called ____.
- incubationcorrect
- migration
- hibernation
- digestion
Incubation keeps developing embryos at the right temperature.
- Picture questionLevel 2
23. 🥚 What comes out of this?
- A baby animalcorrect
- A plant
- A stone
- A shell only
A chick hatches from an egg.
- Sort into groupsLevel 2
24. Sort each animal by how its young are born.
Answer: Chicken = Lays eggs; Snake = Lays eggs; Dog = Live young; Horse = Live young
Some animals lay eggs, others give birth to live young.
Growing Up
- Choose all that applyLevel 1
25. Which animals can move about almost as soon as they are born? Pick all that apply.
- Foalcorrect
- Lambcorrect
- Ducklingcorrect
- Newborn kitten
Foals, lambs and ducklings are all up and moving quickly.
- Multiple choiceLevel 2
26. What does precocial mean?
- Well developed and mobile from the startcorrect
- Blind and helpless
- Born in winter
- Growing slowly
Precocial young are well developed at birth or hatching and can move about quickly.
- Put in orderLevel 2
27. Put a cat's life stages in order.
Answer: Newborn kitten -> Playful young cat -> Adult cat -> Adult with kittens of its own
A kitten is born, grows, becomes an adult, and may have kittens of its own.
- Sort into groupsLevel 2
28. Sort each young animal as precocial or altricial.
Answer: Duckling = Precocial; Foal = Precocial; Robin chick = Altricial; Kitten = Altricial
Some young hit the ground running, others need weeks of care.
- True or falseLevel 2
29. Precocial young usually hatch from larger eggs with more yolk.
Answer: True
True. More yolk supports more development before hatching.
- Type the answerLevel 2
30. What is the food supply inside an egg that feeds the developing young called?
Answer: yolk
The yolk provides nutrients until hatching.
Where these questions come from. Each unit starts as a plan of the concepts it should cover and the difficulty it should span. Questions are written against that plan with AI assistance, then checked by a validator that rejects anything without a single defensible answer, an explanation, or plausible wrong options. How we write questions sets out the whole process, and corrections are fixed in the bank and reach the site and the app the same day.
How you practise
This unit mixes 11 different question formats, so you are recalling and applying rather than recognising the same layout every time.
- Build the sentence
- Choose all that apply
- Fact or fib
- Fill the blank
- Match the pairs
- Multiple choice
- Picture question
- Put in order
- Sort into groups
- True or false
- Type the answer
Practise Baby Animals and Families
110 questions across 18 steps. Start with step one and crawl at your own pace.
Play this unitMore units in Animals & Nature
- What Is an Animal?What makes something an animal, and what every animal needs
- Pets and Farm AnimalsThe animals we live and work with, and how to care for them
- Animal GroupsMammals, birds, reptiles, amphibians, fish and creatures without backbones
- Habitats and HomesWhere animals live, from rainforest to polar ice, and the homes they build
- What Animals EatDiets, teeth, hunting, and how energy flows through a food chain
- MammalsFur, milk and warm blood, from bats and whales to big cats
- BirdsFeathers, beaks, flight and song across the bird world
- Reptiles and AmphibiansScales and slime: snakes, lizards, turtles, crocodiles, frogs and newts