Tumbuh-tumbuhan menyediakan makanan, habitat, udara untuk bernafas dan sumber ubat. Kepentingan ini menghubungkan tumbuh-tumbuhan dengan manusia serta haiwan.
Langkah 1
Tumbuh-tumbuhan penting
Tumbuh-tumbuhan menyediakan makanan, habitat, udara untuk bernafas dan sumber ubat. Kepentingan ini menghubungkan tumbuh-tumbuhan dengan manusia serta haiwan.
Tumbuh-tumbuhan penting = Plants are important Plants give four things: food (makanan), a home or habitat, air to breathe (udara) and medicine (ubat). People and animals both depend on plants, which is why we protect them. Example: A monkey eats bananas and sleeps in a tree; grandma rubs aloe vera gel on a small scratch. Watch out: Habitat means a place to live, not something to eat, so keep the two ideas apart.
Langkah 2
Bezakan percambahan dan tumbesaran
Biji benih memerlukan air, udara dan suhu yang sesuai untuk bercambah. Tumbuhan yang sedang membesar pula memerlukan air, udara, cahaya matahari dan nutrien.
percambahan: air + udara + suhu | tumbesaran: air + udara + cahaya + nutrien
percambahan dan tumbesaran = 发芽与生长 种子发芽只要水、空气和合适的温度，因为种子里已有养分。长大中的植物还要阳光和养分 nutrien，才能制造食物。 例子：绿豆放在湿棉花上，盖住也会发芽；可是幼苗一直放在柜子里，就会变黄变弱。 注意：发芽不需要阳光，学生常把阳光也算进发芽的条件。
percambahan dan tumbesaran = germination and growth A seed needs only water, air and a suitable temperature to germinate, because it already stores food inside. A growing plant also needs sunlight and nutrients to make its own food. Example: Mung beans on wet cotton sprout even inside a dark cupboard, but the young shoots turn yellow if they stay there. Watch out: Sunlight is not needed for germination; many pupils wrongly add it to the list.
Langkah 3
Perubahan dan urutan
Semasa membesar, bilangan daun, saiz daun, tinggi pokok dan lilitan batang bertambah. Urutan biasa ialah biji benih, bercambah, anak pokok, berbunga dan berbuah.
ukur perubahan + susun lima peringkat
perubahan dan urutan = 变化与顺序 植物长大时，叶子数量、叶子大小、高度和茎的粗细都会增加。生长顺序是：种子→发芽→幼苗→开花→结果，一共五个阶段。 例子：木瓜树从小苗长到比人还高，先开花，花谢后才长出木瓜。 注意：要先开花才结果，不能把 berbunga 和 berbuah 的次序倒过来。
perubahan dan urutan = changes and sequence As a plant grows, the number of leaves, leaf size, height and stem girth all increase. The usual order has five stages: seed, germinating, seedling, flowering and fruiting. Example: A papaya seedling grows taller than a child, produces flowers, and only later bears papayas. Watch out: Flowers come before fruit, so never swap berbunga and berbuah in the sequence.
Semak cepat · Soalan 1 / 2
Cuba sendiri
Pilih jawapan. Jika belum tepat, baca petunjuk dan cuba lagi.
Apakah empat kepentingan utama tumbuh-tumbuhan dalam bab ini?
kepentingan tumbuh-tumbuhan = uses of plants The question asks for the four main ways plants help people and animals. Ask yourself what plants give us to eat, who lives in them, what they give us to breathe and what they can cure. Then check every item in a group. Example: A coconut tree gives coconut water, and birds nest among its leaves. Watch out: If even one item in a group does not come from plants, that whole group is wrong.
Semak cepat · Soalan 2 / 2
Cuba sendiri
Pilih jawapan. Jika belum tepat, baca petunjuk dan cuba lagi.
keperluan biji benih bercambah = what a seed needs to germinate This question is about sprouting only, not about a plant growing bigger. Remember that a seed carries stored food, so it needs fewer things than a growing plant. Check each choice for anything extra or missing. Example: Watermelon seeds left in dry sand without water never sprout. Watch out: A word like sahaja means only, so check carefully whether that choice leaves something out.
Ringkasan
Syabas!
Kamu telah mengulang kaji bab Tumbuh-tumbuhan.
Ingat: tumbuh-tumbuhan penting; bezakan percambahan dan tumbesaran; perubahan dan urutan.
