P3 Science Hblt3 W2 Lifecycle

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Day 1 : Monday (30 mins)

P3 HBL Term 3Week 2

Life Cycles Part 1

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Look at the pictures below….

What do the pictures tell you?

Before After

A dead community. No continuity of life.

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Look at the pictures below….

What do these pictures tell you?

A community of life. Reproduction takes place.

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Below are pictures of some animals….

Spectacled Cormorant

Dodo Dire Wolf

Dinosaurs

Ichthyosaur

Archaeopteryx

Sabre-Toothed "Tiger"

Thylacine

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A life cycle is like….

A bicycle wheel

What are some words you can think of to describe the bicycle wheel?

Smooth

Ongoing

Continual

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A life cycle resembles….A wheel divided into stages.

Rotation of earth

Recycle materials

Communication

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Where do young come from?

Is it from the egg first OR… the adult animal?

Cassowary eggCassowary

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Where do young come from?

Young comes from fertilised eggs!!!

Moth Chicken

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Where do young come from?

Young hatch from eggs

Young was given birth alive from mother’s womb with placenta

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Activity 1 - Life cycle“The life cycle of an organism stops once it grows into an adult.”

Is the sentence true or false?

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Activity 2 – Life CycleFarmer Dylan placed some hens and cockerels together in Pen A. In Pen B, he kept only hens. Several days later, he noticed that the hens in both pens have laid eggs. A few weeks later, he noticed that the eggs in Pen A have hatched into eggs but not those in Pen B.

Explain to Farmer Dylan why this has happened.

How long does Farmer Dylan have to wait for the egg to hatch?

If Farmer Dylan wanted to rear eggs for eating only, what must he do?

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Day 2 : Tuesday (60 mins)

P3 HBL Term 2 Week 2

Life Cycles Part 2

Life CyclesAnimals

ChickenInsects

CockroachButterflyMosquitoMealworm Beetle

AmphibiansFrogs

Life CyclesAmphibians

Frogs

Frog Eggs

Frog Eggs

Frog Eggs

Tadpoles - Young

Tadpoles - Young

Tadpoles - Young

Tadpoles - Young

Tadpoles - Young

Kermit the Frog

Frog Lifecycle6 to 21days

to hatch

12 to 16

weeks

eggs

youngadult

Animals

Chicken

Chicken - Eggs

Chicken - Eggs

Chicken - Eggs

Chick - Young

Chicken - Adult

Chicken Lifecycle

21 daysto hatch

eggs

youngadult

InsectsInsects

CockroachButterflyMosquitoMealworm Beetle

Mealworm - Eggs

Mealworm Larvae

moulted skin ~ 14 moulted skin ~ 14 timestimes

Mealworm Pupae

Mealworm Beetles

Mealworm Lifecycle

1 weekto hatch

weeksto

months6 to 3odays

3o to 60

days

eggs

pupa

larvaadult

YUMMY!

Butterfly Egg

Butterfly Larva - Caterpillar

Caterpillar Moulting

preparing to...

Butterfly Pupae

ButterflyEmergin

g

Butterfly

Cockroach Egg Case

Cockroach Nymphs

Adult Cockroach

Cockroaches! ARGGHH!

Cockroach Lifecycle

6 - 7 weeksto hatch

eggs

youngadult

9 - 13 months to hatch

Mosquito - Eggs

Mosquito - Larvae

Mosquito Pupae

Emerging Mosquito

Mosquito - Adult

Mosquito Lifecycle24 to 48to hatch

7 to 10days

eggs

pupa

larvaadult

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Activity 1 - Challenge

Choose an animal that you have learnt from the slides. Find out new

information about the animal, such as the number of stages in its life

cycle, the things it needs to survive, and some other interesting facts

about your animal.

Present these information on a chart/poster.

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Day 3 : Thursday (30 mins)

P3 HBL Term 2 Week 2

Life Cycles Part 3

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Activity 1Rabbit , mosquito , parrot , butterfly , duck , man ,

chicken , tiger , moth, frog, dragonfly, mealworm, ants, bear

Classify these animals into three groups according to their life cycles. egg

Adult

Young

egg

Adult larva

pupa

Adult young

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Activity 2• Read I- Science Textbook (Cycles)

Chapter 1

Pg 2 to 11

• Complete I – Science Workbook (Cycles)

Pg 1 to 7

Acknowledgement: httb://w3weshare.moe.edu.sg