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水果 性质 种子.

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Presentation on theme: "水果 性质 种子."— Presentation transcript:

1 水果 性质 种子

2 Fruit Property Seed 水果 性质 种子
A fruit is the structure of a flowering plant where the seeds are. 性质 Property Something you can observe, like color, texture, or smell. 种子 Seed The part of the fruit that holds the young plant.

3 估计 休眠 发霉

4 Estimate We estimate when we decide how much or how many without counting each object in the group. Dormant When something is resting or inactive, we call it dormant. mold Mold is the slimy or cottonlike growth that develops on moist material.

5 胚芽 种皮 子叶

6 embryo cotyledon Seed coat
The structure inside the seed that contains the tiny leaves and root. Seed coat The layer covering the seed. cotyledon The main part of the seed that stores the food for the young plant.

7 发芽 有机体 生长

8 organism growth germination
When a seed begins to develop after a period of dormancy. organism All living things are organisms, including plants and animals. growth Growth is when an organism gets bigger and more complex.

9 幼苗

10 seedling root stem Young plants that grow from seeds are seedlings.
Roots are one of the first structures to grow. They grow downward to hold the plant to the ground and get nutrients. stem The part of the plant that grows up and supports the rest of the plant is the stem.

11 叶子 营养的 水栽培

12 leaf nutrient hydroponics
Leaves are the flat(usually) green parts of the plant that grow from the stem or up from the roots. nutrient Nutrient are the essential chemicals healthy plants need. hydroponics Growing plants in water and nutrients is called hydroponics.

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14 Flower Fruit and seeds develop from flowers.


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