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- Actividades de ciencia para niños
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Casos particulares del pronombre
EduBook Organización
- 1891 visitas
Casos particulares del pronombre El texto
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Els sons de la llengua. L'escriptura dels sons
EduBook Organización
- 1889 visitas
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Tècniques de treball intel·lectual
EduBook Organización
- 1891 visitas
Tècniques de treball intel·lectual La gramàtica: morfologia verbal
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Tècniques de treball intel·lectual
EduBook Organización
- 1896 visitas
Tècniques de treball intel·lectual Oracions subordinades adjectives
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Mycorrhizas, a beneficial association
EduBook Organización
- 1895 visitas
Certain fungi in the soil live with the roots of the majority of plants in a generally mutualistic association called a mycorrhiza. Mycorrhizas are found in the majority of trees in tropical zones and…
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Think about it. The periodic table and chemical formulas
EduBook Organización
- 1 lo usan
- 1713 visitas
Remember what you have studied in this section and answer the questions: Why do we use symbols for elements and compounds? → We use symbols… to make it easier to… Nomenclature is different in…
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Calculate. Mass and weight
EduBook Organización
- 1898 visitas
Remember what you have studied in this section and answer the questions: Determine the weights of the following masses: 20 kg 50 kg 100 kg Determine the mass of three bodies whose weights are as…
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Ways to save energy
EduBook Organización
- 1912 visitas
Look at the pictures and answer the questions. Which of these measures do you apply? Which do you think are the most useful?
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Effects of heat on bodies (II)
EduBook Organización
- 1898 visitas
4.1. Expansion The term expansion refers to the increase in a substance's volume. This causes a reduction in the substance's density. The opposite effect is called contraction. The particles…
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True/False. Photographic camera
EduBook Organización
- 1896 visitas
Answer true or false: The diaphragm regulates the passage of light. The objective lens is convergent. The objective lens consists of three or more lenses. The image formed within the chamber is larger…