BCRB291048
Prathomsuksa 1
BCRB291048
ISBN 978-616-541-300-8
,!7IG1G5-ebdaai! Cover Textbook Science P1.indd 1
Based on the Basic Education Curriculum B.E. 2551 (Revised Edition B.E. 2560)
2/28/18 3:27 PM
© Pelangi Publishing (Thailand) Co., Ltd. 2018 All rights reserved. No part of this publication may be reproduced, stored in any retrieval system or transmitted in any form or by any means without permission of Pelangi Publishing (Thailand) Co., Ltd. 2018
TP Sc P1.indd 1
ISBN 978-616-541-300-8 First Published 2561
2/28/18 3:30 PM
Contents Chapter 1 Plants
1
A
Common plants around us ................................ 2
B
Different plants in different places ..................... 5
C
Parts of a plant .................................................. 9
Chapter 2 Animals
20
A
Common animals around us ............................. 21
B
Where do animals live? .................................... 23
C
Parts of animals ................................................ 27
D
Movements of animals ...................................... 32
Chapter 3 Ourselves
38
A
Parts of our body .............................................. 39
B
Uses of our body parts ..................................... 41
C
Five senses ....................................................... 48
D
Taking care of our body parts ........................... 51
ii
Chapter 4 Materials
59
A
Materials around us ......................................... 60
B
Grouping of materials ...................................... 63
C
Combination of materials to make objects ........ 75
Chapter 5 Sound
81
A
What is sound? ................................................. 82
B
How does sound travel? ................................... 86
Chapter 6 Day Sky and Night Sky
92
A
Night sky ........................................................... 93
B
Day sky ............................................................. 96
Chapter 7 Rocks A
103
Characteristics of rocks .................................... 104
iii
Let’s Find Out !
Special features
Encourages students to find information and present their findings.
in this book
STEM Activity Provides an activity that engages in the application of knowledge of scientists, mathematicians and engineers.
K.W. L .W Allows students to know what to look for while reading and to reflect on what they have learned.
Let’s Scan and Watch !
Let’s Think! Challenges students with questions that promote higher thinking skills.
Provides direct access to the relevant information on the Internet by scanning the QR codes given.
Helps students to master their scientific knowledge and skills.
Presents a powerful diagram to literally ‘map’ out all the concepts in the chapter.
4C’s of the 21st Century 4C’s The Skills are:
Let’s Laugh ! Makes learning science a fun thing.
Communication Sharing thoughts, questions, ideas & solutions. Collaboration Working together to reach a goal. Putting talent, expertise and smarts to work.
Let’s Know More ! Presents extra information that is relevant to the concept learned.
Critical Thinking Looking at problems in a new way and linking learning across subjects & disciplines.
Glossary
Creativity Trying new approaches to get things done equals innovation & invention.
Lists and explains difficult terms used in the text.
iv
Chapter
1
Plants There are many plants around us. Can you name the plants shown above? The flowers are beautiful. What do they do? Do you know other parts of a plant and their functions?
K.W. L .W What do I know about plants? 1. 2.
K.W. L .W What else do I want to know about plants? 1. What are the names of the common plants? 2. Do different places have different plants? 3. What will happen to the plants if their living conditions change? 4. What are the parts of a plant and their functions? 5.
Plants
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Common plants around us
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Do you know the names of the plants around you? Things needed
Pictures or photographs of plants
Sticky tape or glue
1. Gather some beautiful pictures or photographs of plants around you. 2. Paste them in the space below and name the plants.
3. What is your conclusion for this activity?
2
Science Prathomsuksa
1
These are some common plants around us.
Bougainvillea plant
Frangipani tree
Coconut tree
Hibiscus plant
Sunflower plant
Banana plant
Plants
3
Heliconia plant
Water lily plant
Morning glory plant
Pineapple plant
Papaya plant
Mango tree
Let’s Think ! What are other plants that you know?
4
Science Prathomsuksa
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Different plants in different places al T hin k
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Do different places have different plants? 1. Go to the garden, pond, big tree and field in your school with your teacher. 2. List the plants that you can find at these places in the table below. Garden
Pond
Big tree
Field
3. Do you see different plants at different places?
4. Can the plants in the pond live in the garden, field or on the big tree?
5. Why do you think that different places have different plants?
Plants
5
6. What will happen to the plants if the garden is full of rubbish, the pond dries up, the big tree is burned or the field is flooded?
7. What is your conclusion for this activity?
A habitat is the place where a living thing lives. Different plants live in different habitats. Some plants live on land, such as in the garden and in the field.
6
Rubber trees
Chili plants
Corn plants
Watermelon plants
Science Prathomsuksa
1
There are plants that live on other plants.
Orchid plant
Staghorn fern
Some plants live in or on the water, such as pond, lake and the sea.
Water lily plants
Watercress plants
Some plants live in the swamps. An example is the mangrove trees.
Mangrove trees
Plants
7
Desert is a hot and dry place. Cactus plants live in deserts.
Cactus plants
Plants need habitats that are suitable for them to live and grow healthily. What would happen to the plants if their habitats are changed? If the habitats are changed and the conditions are not suitable, the plants cannot grow well. The plants might die. We must care for the environment and keep it clean so that the plants can live and grow well.
Taking care of the environment
Let’s Think ! The conditions of a farm will change when there is no rain or when the farmer does not water the farm for a long time. Think of other ways how the conditions of the farm will change.
8
Science Prathomsuksa
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Parts of a plant
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What are the parts of a plant? 1. Go to your school garden with your teacher. 2. Observe a plant. What parts does it have? Draw the plant in the space below and name its parts.
3. What is your conclusion for this activity?
Plants
9
A plant has many different parts. Each part has its functions.
Leaf
Flower
Fruit
Stem
Roots
Generally, a plant has leaves, flowers, fruits, stem and roots. There are seeds in the fruits.
10
Science Prathomsuksa
1
BCRB291048
Prathomsuksa 1
BCRB291048
ISBN 978-616-541-300-8
,!7IG1G5-ebdaai! Cover Textbook Science P1.indd 1
Based on the Basic Education Curriculum B.E. 2551 (Revised Edition B.E. 2560)
2/28/18 3:27 PM