How can seeds germinate (group)

There are four seasons in a year-spring, summer, autumn and winter. Many plants also have a one-year growth cycle. In spring, when the climate gets warmer, seeds will germinate (grow roots and buds). Summer is the season when a large number of insects pollinate flowers, and flowers will bloom. In autumn, the animals are busy fattening for the winter, and the fruits and seeds are mature. In winter, seeds and tubers wait in the soil and germinate again in spring. Think about buying a bag of dry and hard broad bean seeds. 1. Soak broad beans overnight to soften the hard shell of seeds. 2. Fold the paper towel and put it in a clean glass bottle. Carefully place at least two broad beans between the paper towel and the bottle wall. 3. Sprinkle water on the paper towel, and be sure to keep the paper towel moist during the whole experiment. 4. put the bottle in a warm and dark place, because broad beans are like this in the soil. About a week later, the broad beans began to sprout. 5. Take the bottle to the light and observe the plants where broad beans grow. When the broad bean sprouts grow tall, you can try to plant them in the soil. Soon, you can harvest broad beans from your plants. Experiments show that there is a germ inside the seed, which will grow into roots and buds of new plants. The white fleshy part of broad bean stores nutrients, and the tender buds need these nutrients until they grow leaves and can make their own nutrients. Broad beans are covered with hard shells to protect beans. Dry seeds don't grow in seed bags. Seed germination requires three conditions: suitable temperature, moisture and oxygen. Under these conditions, most seeds will germinate and grow into new plants. New knowledge extension line to understand the beautiful desert carpet with germination conditions! The seeds are dormant in the desert, where it hasn't rained for several years. As soon as the rain falls, the seeds will quickly break through the ground, and the desert will be covered with a layer of colorful flowers! Plants germinate. When the weather is cold in winter, seeds and tubers will sleep in the soil. They have life, but they won't grow until the right time for growth comes. In autumn, plant a daffodil, tulip or hyacinthus orientalis bulb in a flowerpot and put it in a cold and dark place. Take out the flowerpot and water the flowers in early spring. The warm weather started the bulbs to grow. If you cut open the bulbs, you can also see the multi-layer bulbs that store nutrients inside. We already know that seeds or tubers contain embryos of new plants. Seeds and tubers will sleep quietly until the right conditions appear.