PlantsUnit 3 Lesson 2

Objective:

1. Identify the word lifecycle and Embryo.

2. Arrange lima bean life cycle.3. Identify Maturity and

Germination stages.

Vocabulary:

Germination Maturity Life cycle Embryo

Warm up

Where do plants come from?

Seed

What is an embryo ?

1-Describe each stage of the radish’s life cycle2- Are they in order?

A B

C D

Sprouting

germination

Mature plantLike a grown up which makes new seeds

Seed

Stage 1 Stage 2

Stage 3

Stage 4

What does life cycle mean?

• The series of stages that a living thing goes through as it develops is called a life cycle.

• Most of our food comes from plants.

• Most plants grow from seeds.

How does a seed grow? Video

Exit Slip: In your copybook name each stage of plant life cycle.

Choose from these vocabs:GerminationSproutingSeedsMaturity

H.W 1 Active Reading sheet.Write vocab words germination and maturity

Bring different seeds from home for next lesson from the food you eat

Bonus

Meanings : Germination= When seed sprouts and the embryo seed starts to grow.

Maturity= When plant grows to it’s full size. Mature plants can make new seeds.

Lesson 2Warm up: Thinking …… What was the 1st step in the life

cycle of a bean plant?

Where is a seed formed?Flower and Cones

How is the seed produced?Sexual Reproduction

Flowers and Cones

What is reproduction?

1.Increase in number

Or2.Getting more of the same kind

Reproduction = to make – again.

Mother Father

Puppies

Soooo..How are seeds formed?

1.Male share (sperm cells) 2.Female share (egg cells)

When the male and the female sex cells join together Fertilization

so this called sexual reproductionSo when it comes to flowers …

Which part is the female and which is the male ?

video

Flowers and Cones

Identify the parts of a flower.

Petal Stamen

StemPistil

Anther Male part of a flower

Female part of the

flower

Flowers and ConesFertilization

Sexual Reproduction

Egg cell + Sperm cell = Embryo(in this case the embryo inside plant seed)

1)Some have both organs in same structure

2)Others have both organs on 2 separated structures

means

Exit Slip 2 :

Pistil Anther Stamen petalStalk(stem)

HOMEWORK 2 1. Write vocab word fertilization from the

glossary

2. Study the flower diagram page 120 from your books

Lesson 3:What is fertilization?

Reproduction is done in 3 steps in plants :

1. Pollination2. Fertilization

3. Seed DispersalVideo 1Video2

1-Power of pollinationPollination

Process of pollen moving from a male plant part to

a female plant part.

1)Wind

2)Animals

Wind can blow the pollen

Brightly colored flower petals attract pollinators

e.g Bees , Birds, Butterflies

1)Wind

Video

3)Water

Pollination1. When the pollen on the stamen

rubs off on the butterfly. 2. When the butterfly visits the next

flower, the pollen may drop off and fall on the pistil.

3. Now the flower will be pollinated.

Exit Slip 3 :

List three ways of pollination:1- -----------------2- -----------------3- -----------------

2-Fertilization

3-Seed DispersalHow can a plant’s seeds be spread from place to place?

1)

2)

3)

Video

Exit Slip 4 :

List three ways of seed dispersal:1- -----------------2- -----------------3- -----------------

Classwork:

Lesson 4:Asexual Reproduction Some plants grow from seeds and other

plants grow from structures called spores.

Classwork :

Exit slip: (in copy book) Give one word : -A reproductive structure of some

plants, such as mosses and ferns that can form a new plant.

Wrap Up

Life Cycle of a Plant Germination

Growing plant

Mature plant

Pollination

Fertilisation

Dispersal of seeds

Wrap up video:

Video