４年生(Eネイティブ)理科
Natural Sciences and Technology Grade 4-B
Energy and Change
Chapter 1. Energy from the Sun p. 9
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「エネルギー」とはそもそも何でしょう
このテキスト冒頭に
"Scientists say energy is the ability to do work. We need to understand what this means. A way to think of it is that energy can make something happen." (1.1 Energy for life p.2)
とあります。これだけで深い
下に挙げる文章群もそれぞれ基本的な学びどころが満載です。
1.2 Energy from the Sun (以下、改行を入れています）
We get almost all of our energy on Earth from the Sun.
We call this energy solar energy.
Sol means Sun.
Next term in Earth and Beyond, we will learn a lot more about the Sun!
The Sun is the closest star to Earth.
A star is a giant ball of gas which releases energy.
Some of this energy from the sun travels to the Earth in rays.
Some of the rays are light that we can see.
Other rays like ultraviolet light and X-rays we can not see.
When the rays reach the Earth, some reflect back into space.
The Earth absorbs most of the solar energy.
This heat warms the Earth and the air around it.
