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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Unit1L.1: Classification of plants and animals

• Similarities and differences between living things • Classification of Plants • Classification of Animals

Science skills:

• Classification • Estimating and measuring

By the end of this unit you should:

• Be able to describe differences between humans and other living things

• Know that animals and plants can be grouped together using similar characteristics

• Know that members of the same species show some differences from each other.

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Similarities and differences between living things

Look at the following pictures.

Living things can be either plants, animals or humans. Plants and animals have similar characteristics, they grow, they breathe, and they produce young ones.

However animals and plants differ from each other, animals eat food and plants make food. Animals move from one place to another, plants move toward sunlight they cannot move from one place to another.

3.4.1

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Are Humans animals or plants?

Humans are special living things, they are not plants or animals but Humans are like animals because they move, breathe, eat, excrete and can have babies.

Who is the tallest student in my class?

Steps

Estimate

----------------------

which student is tallest in your classroom.

Measure their height……………….cm.

Estimate

Now measure

your height against this student ………………………… cm.

your

Measure the height of your

height …………cm.

neighbor

Are you shorter/taller than this person?--------

…………..cm.

Materials Measuring tape

Process Skills Estimating and measurement

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

All animals in the same group have the same characteristics

But sparrows use claws for walking

. For example sparrows and hawks are birds. They can fly and they have claws.

only and hawks use them for walking and

gripping and tearing food.

How are bean plants and cactus alike? How are they different?--------------------------------------------------------------------

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Key terms:

• Living things • Animals • Plants

Key ideas:

• Living things are classified into plants or animals.

• They have similarities and differences.

Key question:

Choose the odd one out and explain why.

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Classification of plants

Plants are living things. Not all plants are the same; some plants with flowers are called flowering plants such as:

Trees: Apple tree, Orange tree.

Shrubs: Rose, Lily.

Herbs: Mint, Grass.

Trees Shrubs Herbs

Other plants without flowers are called non flowering plants such as

3.5.1

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Pine Ferns Algae

Activity: Fill the blanks.

Plants

Flowering

Trees Shurbs Herbs

Algaefernspine

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Key terms:

• Flowering • Non-Flowering • Herbs • Shrub • Fern • Algae • Pine

Key Ideas:

• Plants are classified into flowering and non- flowering plants.

• Herbs, shrubs and orange trees are flowering plants.

• Ferns, algae and pines are non-flowering plants.

Key Questions:

A) Choose the correct word and fill in the blanks:

1- Very tall plants are called _________

{herbs –shrubs –trees}

2- An example of a flowering plant is _________

{fern – pine –rose}

3- Mint is a ________ {shrub –tree - herb}

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Key question:

B) Write True ( T ) or False ( F ):

1- Algae is a flowering plant. ( )

2- Some plants have flowers. ( )

C) Use the following table to compare between flowering and non – flowering plants.

Flowering Non-flowering

Do they have a stem?

Do they have roots?

Do they have leaves?

Do they have flowers?

Examples

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Classification of animals Some animals have backbone others do not. Animals are classified into vertebrate and invertebrates

.

1-Vertebrates

Fish Bird

Amphibian Mammal

Reptile

3.5.1

Vertebrates are animals with a backbone .

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Fish:

• Have gills that are used to breathe.

• They lay eggs in water. • They have fins to swim in

water.

Amphibians:

• Young amphibians (tadpoles) live in water and breathe with gills.

• Adults can live in water and on land. The adult breathes with lungs.

• They lay eggs in water. Their eggs do not have hard shells.

Reptiles:

• Breathe with lungs. • Some reptiles live in the sea,

and others live in the desert.

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

• Most reptiles lay eggs. The eggs have leathery shells.

Birds:

• Use wings to fly. • Their bodies are covered by

feathers. • They lay eggs. Their eggs

have hard shells.

Mammals:

• Most mammals are covered with fur or hair.

• They reproduce by birth. • They feed their babies with

mother's milk.

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Activity (1): Fill in the missing words:

1. ____________, ____________and ___________

all lay eggs.

2. Only ____________ feed their babies with milk.

3. Gills are found only in _________ and _________.

4. ___________ have hard shells on their eggs.

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

2-Invertebrates

Starfish Beetle

Butterfly Snail

Earthworm Jellyfish

Invertebrates are animals without a backbone.

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Activity: Branching key

Look at the pictures then complete the branching key.

Does it have

wings?

Yes

It is a ------

No

It is a -----

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Key terms:

• Vertebrate • Invertebrate

Key Questions

Q-1 Match the animals with their group names:

Vertebrate

Invertebrate

Key Ideas

• Animals that have a backbone are called vertebrates.

• Animals that do not have a backbone are called invertebrates.

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Life science

Grade 3, Unit 3L.1. Classification of plants and animals

Key Questions

Q2- Choose the correct answer. 1- Which one of the following is an invertebrate? A- whale B-starfish C-salmon 2- Mammals reproduce by.. A-eggs B-birth C-seed 3-What helps the fish to breathe underwater? A-fins B-scales C-gills Q3- Which of the following statements is true. A- Reptiles are invertebrates. B- Fins and tail helps the fish to breathe. C- Starfish are not vertebrates because they do not have a backbone. Q4- Complete the branching keys>

Does it have fins?

Yes

It is a -----

No

It is a -----