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Think about it. Asexual reproduction in plants
EduBook Organización
- 3370 visitas
Remember what you have studied in this section and answer the questions: List the asexual reproduction organs we use for food. Can you and a classmate give other examples? What is the best method of…
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The city as an ecosystem - Cities and Urban Areas
EduBook Organización
- 3335 visitas
An ecosystem is an area where living things interact with each other and their physical environment. A city is considered to be an ecosystem as many interactions are constantly taking place. Resources…
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End-of-unit activities - Nutrition, breathing and circulation
EduBook Organización
- 3333 visitas
Our body needs nutrients and oxygen to live and grow. We obtain nutrients from food, and oxygen from the air. In our body, the digestive system gives us the nutrients that we need, and the respiratory…
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How we breathe in places with no air
EduBook Organización
- 3309 visitas
We need air to breathe Humans and other animals that live on land need air to live. When we breathe, we take oxygen from the air. With this oxygen and with the food we eat, our body has the energy it…
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Summaries - Energy
EduBook Organización
- 3296 visitas
1. Energy Energy is the power that causes change in things and allows us to carry out work. Energy is produced by energy sources. The main source of energy on Earth is the Sun. Energy exists in several…
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Complete. The activities of the Palaeolithic period
EduBook Organización
- 3267 visitas
Complete the sentences about the activities of the Palaeolithic period: The men and women of the Palaeolithic period were because they didn't have permanent settlements. They fed themselves by , and…
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End-of-unit evaluation - Nutrition, breathing and circulation
EduBook Organización
- 3251 visitas
Our body needs nutrients and oxygen to live and grow. We obtain nutrients from food, and oxygen from the air. In our body, the digestive system gives us the nutrients that we need, and the respiratory…
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Ready-to-go lessons
Tiching explorer Organización
- 6873 visitas
This is a collection of online resources organized by subject. There is a grammar and a vocabulary section. Among the grammar topics we can find: future, gerunds, infinitive, modals, passive, past…
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Remember - Water
EduBook Organización
- 3164 visitas
Water covers a lot of the Earth's surface. We can find water in oceans, seas and rivers. We can also find water in clouds and in snow on mountains. All living things need water. All animals need…