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3.Wood comes from trees.
4.Plastics and glass are made in factories.
5.Ceramics are made of mud and clay.
6.Most fabrics are made of parts of plants or animals.
7.Tissues are made of a special absorbent paper.
Baca juga: Kunci Jawaban Bahasa Inggris Kelas 7 Halaman 159 Collecting Information: Correcting Sentences
Characteristics
1.Some materials, such as metal, feel cold when you touch them because they draw the heat from your hand. They are said to be good thermal conductors.
2.Other materials, such as wood, feel warm to the touch.
3.They do not draw heat from your hand and are said to be good thermal insulators.
Functions: We use all these materials to build our homes and to make the things we use every day.
2.Sponge
MAIN IDEA
Class
1.There are diff erent types of sponges.
2.Some sponges are natural and come from animals that live in warm seas.