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Science and Technology
SCIENCE AND TECHNOLOGY
VOCABULARY SCIENCE AND TECHNOLOGY
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UNIT 1 : REPRODUCTION IN PLANTS
No. Vocabulary & Parts of speech Thai Definition Sentence
1 reproduction (n.) การสืบพันธุ์ Reproduction is the process by which organisms, such as plants and animals, produce offspring.
2 cotyledon (n.) ใบเลี้ยง A cotyledon is a significant part of the embryo within the seed of a plant.
3 disperse (v.) กระจาย
4 seedling (n.) ต้นอ่อน To prevent overcrowding, plants disperse their seeds with the help of animals. wind, or water.
Before the seedling is able to make its own food, it gets its food from the seed leaves.
5 fertilization (n.) การปฏิสนธิ
6 germination (n.) การงอก The pollen grain enters the ovule and fuses with the egg to form a fertilized egg. This process is called fertilization.
Germination is the process by which an organism grows from a seed or similar structure.
No. Vocabulary & Parts of speech Thai Definition Sentence
7 pollination (n.) การถ่ายละออง เรณู The transfer of pollen from the anther to the stigma is called pollination.
8 sucker (n.) หน่อ Sucker is a new shoot that grows from bud at the base of the parent plant’s stems.
UNIT 2 : REPRODUCTION IN ANIMALS
No. Vocabulary & Parts of speech Thai Definition Sentence
1 extinct (adj.) สูญพันธุ์ Dinosaurs are now extinct.
2 exist (v.) ด�ารงอยู่ The reason living things reproduce is to ensure that their kind (species) will continue to exist.
3 offspring (n.) ลูกหลาน
4 trait (n.) ลักษณะ
5 heredity (n.) พันธุกรรม
6 species (n.) สายพันธุ์ Many characteristics of an organism are passed on from parents to offspring.
There are some traits that are passed on from parents to their offspring in a human being.
The passing on of characteristics from parents to offspring is called heredity.
Living things reproduce to ensure the continuity of their own kind (species).
No. Vocabulary & Parts of speech Thai Definition Sentence
7 characteristic (n.) บุคลิกลักษณะ Organisms pass on characteristics to their offspring through their genes.
UNIT 3 : CELL AND CELL DIVISION
No. Vocabulary & Parts of speech Thai Definition Sentence
1 microscope (n.) กล้องจุลทรรศน์
A microscope is an instrument which help man view very small objects. 2 cell (n.) เซลล์ A cell is the smallest unit of life.
3 organism (n.) สิ่งมีชีวิต All organisms are made up of at least one cell.
4 cell wall (n.) ผนังเซลล์ The plant cell has cell wall and chloroplast.
5 cell membrane (n.) เยื่อหุ้มเซลล์ The cell membrane controls the movement of materials in and out of a cell.
6 nucleus (n.) นิวเคลียส The nucleus of a cell controls all the activities of the cell.
7 cytoplasm (n.) ไซโทพลาซึม
8 chloroplast (n.) คลอโรพลาสต์ The cytoplasm is made up of a jelly like substance that contains many cell parts.
Chloroplast contains chlorophyll, the pigment that captures sunlight to make food.
No. Vocabulary & Parts of speech Thai Definition Sentence
9 cell division (n.) การแบ่งเซลล์ The splitting of a cell to produce two new cells is called cell division.
10 budding (n.) การแตกหน่อ Hydra reproduces by budding.
UNIT 4 : FOOD CHAIN AND FOOD WEB
No. Vocabulary & Parts of speech Thai Definition Sentence
1 food chain (n.) ห่วงโซ่อาหาร A food chain is a sequence of who eats whom in a community to obtain nutrition.
2 food web (n.) สายใยอาหาร A network of interconnected food chains is called a food web.
3 autotroph (n.) ผู้ผลิต Green plants are known as autotrophs or producers.
4 producer (n.) ผู้ผลิต Green plants are called producers because they can make their own food out of water and carbon dioxide in the presence of sunlight.
5 heterotroph (n.) ผู้บริโภค Animals are also known as heterotrophs or consumers.
6 consumer (n.) ผู้บริโภค
7 omnivore (n.) ผู้บริโภคทั้งพืช และสัตว์ Consumers directly or indirectly consume the food made by plants.
An omnivore is an animal that has the ability to eat and survive on both plant and animal.
No. Vocabulary & Parts of speech Thai Definition Sentence
8 herbivore (n.) ผู้บริโภคพืช Herbivores get their energy directly from plants.
9 carnivore (n.) ผู้บริโภคสัตว์ Carnivores feed on other animals only.
10 predator (n.) นักล่า
11 detritivore (n.) ผู้บริโภคซาก Each food chain ends with a top predator like the alligator, hawk, polar bear etc.
When any organism dies, it is eventually eaten by detritivores like vulture.
12 decomposer (n.) ผู้ย่อยสลาย Decomposers are organisms that feed on dead plants and animals.
13 scavenger (n.) ผู้บริโภคซาก
14 decay (n.) การย่อยสลาย Scavengers are animals that consume dead organisms that have died from causes other than predation.
The process of breaking down dead material or waste matter into simple substances is called decay.
UNIT 5 : ELECTRICITY
No. Vocabulary & Parts of speech Thai Definition Sentence
1 electricity (n.) ไฟฟ้า
2 generator (n.) เครื่องก�าเนิด ไฟฟ้า Dry cells produce much less electricity than a power generator.
Electricity is produced by power generators in power station.
3 electrical appliance (n.) เครื่องใช้ไฟฟ้า
4 circuit (n.) วงจรไฟฟ้า Most home electrical appliances can work only if they are plugged into the power points and switched on.
An electric circuit consists of power source and other components.
5 current (n.) กระแส Electric current flows in a closed circuit, but not in an open circuit.
6 symbol (n.) สัญลักษณ์ Symbols are used to represent some of components in an electric circuit.
7 arrangement (n.) การจัดเรียง The arrangement of the components in a circuit affect the brightness of the bulb in a circuit.
8 conductor (n.) ตัวน�า
9 insulator (n.) ฉนวน Materials that allow electricity to flow through them are called electrical conductors.
Plastic, glass and rubber are examples of insulator of electricity.
No. Vocabulary & Parts of speech Thai Definition Sentence
10 conserve (v.) ประหยัด
11 precaution (n.) ข้อควรระวัง
12 fossil fuel (n.) พลังงานเชื้อเพลิง จากซากฟอสซิล We should conserve electricity electrical energy because the burning of fuels causes air pollution.
We should take safety precautions when using electricity.
Fossil fuels such as coal, oil and natural gases are burnt to produce electricity.
UNIT 6 : FORCE AND SIMPLE MACHINE
No. Vocabulary & Parts of speech Thai Definition Sentence
1 effect (n.) ผลที่เกิดขึ้น We cannot see a force but we can observe its effects.
2 simple machine (n.) เครื่องกลอย่างง่าย A simple machine is any simple device or tool that helps us to do work more easily.
3 effort (n.) ความพยายาม The force that is applied is called
the effort.
4 load (n.) น้�าหนักบรรทุก The force that is overcome is called the load.
5 fulcrum (n.) จุดหมุน A fulcrum is a pivot point around which a lever turn.
6 lever (n.) คาน Levers are grouped into three types depending on the position of the effort, load and fulcrum.
No. Vocabulary & Parts of speech Thai Definition Sentence
7 pulley (n.) รอก A pulley is a simple machine consisting of a grooved wheel with a rope going over the wheel.
8
9 inclined plane (n.)
wheel and axle (n.) พื้นลาดเอียง Ramps, slides and ladders are examples of inclined plane.
ล้อและเพลา The wheel and axle is a simple machine made up of two cylinders joined at the center.
10 gear (n.) ฟันเฟือง The gears in the egg beater can change the direction and speed of rotation to mix the food.
UNIT 11 : THE SOLAR SYSTEM
No. Vocabulary & Parts of speech Thai Definition Sentence
1 satellite (n.) ดาวเทียม The moon is a natural satellite of the earth.
2 orbit (n.) วงโคจร The planets revolve around the sun in fixed paths called orbits.
3 atmosphere (n.) ชั้นบรรยากาศ The atmosphere is a layer of gasses surrounding the earth.
4 revolution (n.) การโคจร The movement of the earth around the sun is call a revolution.
5 rotation (n.) การหมุน It takes one day (24 hours) for the earth to make one complete rotation about its axis.
No. Vocabulary & Parts of speech Thai Definition Sentence
6 axis (n.) แกนโลก The earth rotates about its axis all the time.
7 reflect (v.) สะท้อน The moon reflects the sun’s light.
MEMO
