海外の理科テキストに学ぶ２０

５年生(Eネイティブ)理科

Properties of metals

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propertyは物の特質や特性を意味する単語です。可算名詞です。

金属のpropertiesを読んでみましょう。

A property is a word used to describe a material or object and tells us something about it.

Metals are usually shiny. The shine that we see when light reflects off the surface of a metal is called the lustre of the metal.

Most metals are hard and they feel heavy.

We say metals are dense as their particles are packed close together.

Metals conduct electricity and heat well. (You will learn more about electricity next term. In Grade 6, you will learn about metals as conductors of electricity.)

Metals are malleable (they can be shaped into flat sheets) and they are ductile (this means they can be made into thin wire)

Most metals can be heated to high temperatures without melting or changing their shape, which is one of the reasons why pots and pans are made of metal. Can you think of any other reasons why pots and pans are made of metal?

Coins are made of different metals.

海外の理科テキストに学ぶ1９

５年生(Eネイティブ)理科

Life and Living Grade 5

Life cycles

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受粉についての英文です。

正確に読めますか？書けますか？

The flowers produce pollen. Insects carry the pollen from one flower to the next. This is called pollination.

The pollen fertilises the ovules in the flower.

The fertilised ovules now develop into seeds.

The seeds are then dispersed and start to grow in a new place.

Seeds can be dispersed in different ways.

disperse　分散する、散らす、まき散らす、広める

Different methods for seed dispersal.

Look at the pictures showing ways in which seeds are dispersed.

Discuss these four ways and explain how you think the seeds are adapted in each method to be the most efficient.

海外の理科テキストに学ぶ1８

５年生(Eネイティブ)理科

Life and Living Grade 5

Food chains

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食物連鎖 food chain も食物網 food web も１つではなく複数あります。

下の英文の中から、エネルギーの受け渡しに使われている英語の動詞を見つけましょう。

There is a feeding relationship between producers and consumers.

We call this relationship a food chain.

Plants are the producers.

Animals are the consumers.

A food chain describes how each living thing gets food and how energy is passed from one organism to the next.

When we draw a food chain we use an arrow ( → )between organisms to show that one eats the other and that energy is transferred from the one organism to the next.

A simple food chain is: grass → cow → human → worms.

Many food chains that are interdependent and linked are called a food web.