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PLANTS
- 2. Plants make their own food and are living things. Plants need water, minerals, air and sunlight. Plants are born, grow, reproduce and die. All plants have roots, stems and leaves. What are plants like? Lucía Ábalos Álvarez
- 3. Name the parts of this plant Petal The petal is brightly coloured and pretty to attract bees and other insects. Stem The stem carries water and nutrients from the ground and also holds the plant up. Leaf The leaf is big and green. It catches the sunlight so that the plant can make the energy it needs to grow. Reproductive parts This is where the stigma and stamen are. It is where the plant keeps its pollen. The bee picks up the pollen and takes it to other plants so that they can reproduce (because plants cannot move themselves!) Bee The bee (and other insects, too!) lands on the plant’s reproductive parts and picks up the pollen. He then takes it to other plants to fertilise them. He carries the pollen on the hairs on his legs. Lucía Ábalos Álvarez
- 4. Roots The roots grow underground. They take water and nutrients from the soil and transport it up into the plant through the stem. The plant needs water and nutrients (as well as sunlight) to survive. Without them it cannot grow. Lucía Ábalos Álvarez
- 5. Trees Leaves Trees have lots of leaves because they are very big and need to collect a lot of sunlight to stay alive. Trunk The trunk is a very thick stem which supports the tree. Lucía Ábalos Álvarez
- 9. Photosynthesis = minerals + water + sunlight + carbon dioxide = food + oxygen Roots absorb minerals and water Leaves absorb sunlight and carbon dioxide How do plants make food? Lucía Ábalos Álvarez
- 14. The sepals form the calyx. The pistil has ovules inside. Stamens have pollen at the top. Petals form the corolla. What are the parts of a flower? Lucía Ábalos Álvarez
- 17. An insect takes pollen from the stamen to the pistil. The pollen joins an ovule inside the pistil. They make a seed. The petals fall off and the pistil grows into a fruit. The fruit falls on the ground and its seed grows into a new plant. How do plants reproduce? Lucía Ábalos Álvarez
- 21. Plants are living things because they are born, they grow and they die. There are many types of plants, but they all have: roots, a stem and leaves. •Roots hold the plant in the ground. Through them the plant gets water and mineral salts. •The stem is the part of the plant that grows above the ground. •The leaves are the green part of the plant. They can be deciduous (they lose their leaves in autumn) or evergreen (they keep their leaves all year long, but change little by little). Lucía Ábalos Álvarez
- 22. Nutrition: plants make their own food from water and mineral salts they get from the soil and substances from the air and sunlight. 1.First, they absorb water and mineral salts from the soil through their roots. 2. It moves through the stem and branches until it reaches the leaves. 3. In the leaves, it turns into food, thanks to substances the plant gets from the air and sunlight. Lucía Ábalos Álvarez
- 23. Reproduction: flowers carry out the function of reproduction. The most important parts of the flower are: Calyx: it’s a group of small green leaves (sepals). It protects the flower. Corolla: it’s a group of coloured leaves (petals). Stamens: these are the male reproductive organs. They have pollen. Pistil: these are the female reproductive organs. They have ovules inside. A fruit is a transformed pistil. There are seeds inside the fruit. Seeds germinate and create a new plant. Lucía Ábalos Álvarez
- 24. Are all leaves the same? Round with a smooth edge Oval with a smooth edge Needle- shaped with a smooth edge Heart- shaped with a toothed edge Lucía Ábalos Álvarez
- 25. How do we classify plants? Trees have a big, woody stem called a trunk. Grasses have flexible green stems. Bushes have woody stems, but they don’t have a trunk. They have branches near the ground. Lucía Ábalos Álvarez
- 26. How do we use plants? We get wood, rubber, cosmetics and food from plants. We also get thread, paper, flour and medicines. Lucía Ábalos Álvarez
- 27. We should support national parks and collect rubbish. We shouldn’t step on flowers or cut down trees. How can we look after plants? Lucía Ábalos Álvarez
- 28. How do we classify plants? Deciduous plants lose their leaves in autumn.Evergreen plants always have leaves. Lucía Ábalos Álvarez
- 29. Trees Trees are either... Deciduous Deciduous trees have leaves that they drop every year in autumn and grow again in spring. Evergreen Evergreen trees have long thin leaves called needles that they keep all year round. Lucía Ábalos Álvarez
- 30. Other types of plant Cactus Cacti live in very hot climates like deserts. They grow very slowly because there is so little water. Seaweed Seaweed lives underwater in the sea. Moss Moss grows on the side of rocks and trees. Grass Grass is what we grow in our gardens and parks to walk and play on. Grass is made of lots of very long, thin, leaves! Lucía Ábalos Álvarez
- 31. ForestsWhen lots of trees grow together it is called a forest. Forests are very important because they produce so much oxygen. Forests are the lungs of our Earth. Lucía Ábalos Álvarez
- 32. www.youtube.com/watch?v=OQT6piZOX7c The needs of a plant Lucía Ábalos Álvarez