Plants have developed several adaptations for seed dispersal. For example, some seeds have feathery hairs that help the seed to be carried long distances by the wind.
Others are hidden inside the fruit of the plant. And some seeds float in water. Some plants reproduce themselves in a different way. They send out runners underground or tillers above the ground. Each new runner or tiller becomes a new plant. Both methods of reproduction allow plants to spread out and grow in new places.
Classroom Unit 3: How Plants Work. Sign up for our Interactive Classroom - Coming Soon! Teaching Standards. How Plants Work Plants are made up of roots, stems, and leaves, and most produce flowers, fruit, and seeds. Unit 3: How Plants Work. Lesson 1 of 4 Lesson 1: Parts of a Plant Students will learn about the parts of a plant and what each one does. Lesson 2 of 4 Lesson 2: Pollination Student will learn about the pollination process.
Lesson 3 of 4 Lesson 3: Seed Dispersal Students will learn how seeds are dispersed. Other plants can live for several years and some plants like trees can live for hundreds, or even thousands of years! Bulb — a form some plants take when they are dormant; some plants like daffodils or onions survive the winter as a bulb under the soil, and grow new stalks and leaves in the spring Carpel — the female reproductive parts of a flower; it receives pollen from other plants and protects seeds while they develop Deciduous — deciduous trees are ones that shed their leaves in winter; leaves on these trees are normally wide and flat Evergreen — evergreen trees also called conifers are ones that keep their leaves all year around; they often have leaves shaped like needles Flower — a flower contains the reproductive parts of a plant; they are often brightly coloured to attract insects Fruit — flesh surrounding a seed or seeds that makes it attractive for animals to eat them Germination — the process of a seed starting to grow to create a new plant Leaves — plants have these on their branches or stem, and normally use them to make food from sunlight; this is called photosynthesis.
Ovary — a chamber at the base of the carpel; this contains ovules that are fertilised by pollen to create seeds Nectar — a sugary liquid that is found in many flowers; nectar attracts insects to drink it and encourages them to travel from flower to flower spreading pollen Petal — special leaves that are part of a flower. Need help? How to videos Why join? Plants and growth. What are plants? Plants turn light from the Sun into food that they need to grow.
Plants also need water and nutrients from the soil , and carbon dioxide from the air. Animals can eat plants so that they can use the food the plants created to grow too. The biggest type of plant on earth is a tree called the giant redwood. Some of these trees are as tall as a storey building, and up to 3, years old. Most plants reproduce by creating seeds using pollen from other plants of the same type. Plants use flowers to attract insects to carry pollen from one plant to the next.
Some plants spread their seeds by letting them float on the wind, other plants encourage animals to eat them and some plants just drop them on the ground. Not all plants get all their energy from sunlight. The Venus flytrap and pitcher plants trap and eat insects! Some people are allergic to pollen.
All the pollen in the air in the spring makes them sneeze. Start your child on a learning programme today! Trial it for FREE today. Plants need light to grow. During photosynthesis, plants take the water from the soil, and the carbon dioxide from the air, and they make sugars out of it. They use those sugars as food, along with other nutrients that they usually get from the soil.
Those nutrients are molecules made up of nitrogen, phosphorus and other elements. All living things are made of cells. Cells are much larger than molecules, but you still need a microscope to see them. In plants, the cells are like millions and millions of tiny compartments stuck together, like Legos. When plants have the right balance of water, air, sunlight and nutrients, their cells grow and divide, and the whole plant gets bigger and bigger.
Ava, if you would like to see all kinds of different plants and learn more about how they grow, you can come visit the E. Heier Teaching Greenhouse at Binghamton University. Just call , and they can help you set up a tour!
0コメント