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True/false. Characteristics of arthropods
EduBook Organización
- 2774 visitas
Decide if the following statements are true or false: Arthropods have a skeleton. ➝ Arthropods have various numbers of pairs of legs. ➝ The skeleton of arthropods is internal. ➝ The skeleton of…
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Exercise on Irregular verbs
Tiching explorer Organización
- 3 lo usan
- 3897 visitas
This interactive exercise can be done online and also printed as a handout. Students are asked to fill in the gaps using one of the multiple choices. A link to the grammar rules explains the mistakes.
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Calculate. The transpiration of a tree
EduBook Organización
- 2764 visitas
A tree has 150000 leaves, due to transpiration eeach leaf loses 1 mL of water an hour in one day during a hot summer. ¿How many litres of water are lost in one day with 13 hours of light?
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Investigate - Reproduction in plants
EduBook Organización
- 2762 visitas
Find a flower in a nearby park. Bring it to class. Look at it under a magnifying glass. Can you see the stamens? Can you see the pistil? What colour are the petals?
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Activity 2: Who is responsible?
Tiching explorer Organización
- 1 lo usan
- 3383 visitas
Resource consisting of a PDF file that contains activities and links in order to make students look at a map showing what carbon emissions are produced by people in different parts of the world, and discuss it.
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Translation exercise
Tiching explorer Organización
- 1 lo usan
- 3884 visitas
In this activity we are provided with sentences written in Spanish which we have to translate into English. By doing this exercise we become aware of the different uses of each verb tenses.
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Think about it. Reproduction in mammals
EduBook Organización
- 2737 visitas
Remember what you have studied in this section and answer the questions: What are the advantages of a) a long gestation period, and b) being born in the spring or summer? Describe the new-born offspring…
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engVid · Learn English for Free
Marta Regalado Docente
- 1 lo usan
- 2806 visitas
Learn English for free with hundreds of video lessons by experienced native-speaker teachers. New classes are added three times a week, covering grammar, vocabulary, pronunciation, TOEFL, and more.
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Video: How gulf spill estimates got it so wrong
Tiching explorer Organización
- 1 lo usan
- 3679 visitas
In this resource we learn that marine oil spills are usually measured by the amount of oil floating on the surface. But the BP spill in the Gulf of Mexic from a deep-sea well required a different approach.
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Game: Immune system
Tiching explorer Organización
- 4068 visitas
In this game we learn tat granulocytes, macrophages and dendritic cells are immune cells specialized in finding and "eating" bacteria, viruses, and dead or injured body cells.