４年生(Eネイティブ)理科
Natural Sciences and Technology Grade 4-A
Matters and Materials
Chapter 2. Solid materials p.176
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ピンクの色を付けた文章、ぜひ参考にしましょう。
2.4 Different materials for the same object
The use of the object determines the type of material it should be made of.
Imagine a bicycle with wooden wheels.
Do you think the wheels will turn and work as well as steel and rubber? Materials are chosen and used for the properties they have.
ACTIVITY:
Identifying different materials I
NSTRUCTIONS:
1. Look at the pictures of different chairs below . Even chairs can be made from many different materials (plastic, wood, metal, canvas, etc) or a mixture of more than one material.
2. Identify the types of materials that each chair is made from.
3. Write down where that material comes from
"identify"は日本の学校ではどのように習うのでしょうか。重要単語・基礎単語ですね。
実験後には次の文章が書かれています。
Similar objects such as balls used in sport, can be made from very different materials, depending on what the object is used for.
