Recursos educativos water página 81

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The need for energy. Sources of energy
EduBook Organización
1 lo usan

2443 visitas
3.1. The need for energy through history In prehistoric times, human beings, who were nomadic hunter-gatherers, needed no other energy than fire to keep them warm and cook their food. Centuries later,…
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Initial evaluation 1 - The Earth's Crust
EduBook Organización
2628 visitas
Are the following sentences true or false? Gypsum is a very soft mineral. Rocks are made up of minerals. All minerals are found on the Earth's surface. Sedimentary rocks can come from minerals…
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Self-assessment T01 06 - Our planet Earth
EduBook Organización
2616 visitas
Are these sentences true or false? The process of erosion takes places before the process of weathering. Sedimentation is the process of depositing materials. Transportation takes place after the…
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Final Autoevaluation 1.03 - Plant nutrition
EduBook Organización
2581 visitas
Match the definitions to their concepts: The process by which glucose is synthesized from simpler substances using sunlight. This system transports elaborated sap. A tiny pore in the epidermis of leaves…
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Analyse. Life cycle of a frog
EduBook Organización
2548 visitas
Look at the life cycle of the frog and answer the questions: Why do amphibians lay their eggs in water? What kind of respiration does a tadpole have during the first nine days of life? When does a…
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Earth and Space (videos)
PBS Kids Organización
5023 visitas
Collection of videos for kids in relation with Earth and Space. There are videos about: Baby Dinosaurs, Caves, Coconauts, Dinosaurs, Earthquakes, F-scale, Forecasting, Garbology, Geysers, Glaciers,…
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New Zeland: Air, Land and Sea
Tiching explorer Organización
4054 visitas
This lesson for teens explores New Zeland, its geography, people and climate. We can read an article about sports we can practice there, such as skydiving, bungee jumping, hiking in the national parks,…
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Analyse a text
EduBook Organización
2535 visitas
Pollen for human consumption Pollen is one of the many health foods or miracle foods that are sold as a food supplement for people with nutritional deficiencies. This plant-based product contains water,…
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Identify. Farming systems
EduBook Organización
2527 visitas
Match each sentence with the correct type of farming system: When land is used to grow only one type of crop, such coffee or cereals. When the water used to feed crops comes from rain. Growing the…
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Learn to discover the starch in a leaf and see how stomata function
EduBook Organización
2517 visitas
1. Objective: to discover if starch is present in a leaf Plants store the glucose made during photosynthesis as starch. To test this hypothesis, a leaf will be examined for the presence of starch.…
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