Recursos educativos substances página 10

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Reproduction in mammals
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3.1. Reproduction in mammals Mammals reproduce by internal fertilisation. They are viviparous. Males have a penis that they use to introduce sperm into the female's body. Fertilisation then takes…
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Analyse. Algae
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Read the text and answer the questions: Algae in everyday life Algae contain a lot of proteins, minerals and vitamins, which means they are used as food in some countries. Industry also gets useful…
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Before you start - Matter and Materials
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Didactic objectives Recognise the characteristics of the states of matter and changes of state, associating them to the conditions they are subjected to. Understand that matter is made up of atoms and…
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Check. Forms of energy
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Reorder the words to make questions and ask them to a classmate: Burn substances what thermal produce when energy they ? Type energy stored of in a is battery what ? Heat what of is iron used to kind an…
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Classify. Types of changes
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Match each statement to either a physical or chemical change in matter: The substances don't change during the process. The substance stays the same but just passes from a solid to a liquid state.…
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Complete. What is the geosphere made up of?
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Complete this text with the correct words: The geosphere is made up of which are natural materials. They are usually and dense, and made up of various substances called . The geosphere has rocks on the…
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Observe. Nutrition, breathing and circulation
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Think and answer: What substances do the children in this photo need to stay active? What about when they are sleeping? Or doing exercise? Look at the photos of the four organs at the top of the page.…
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Final Autoevaluation 1.03 - Plant nutrition
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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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Oral hygiene
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Microbes live inside our mouth and consume the food left between our teeth. These microbes manufacture substances that produce cavities in our teeth. This is called tooth decay. To avoid tooth decay, it…
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Investigate. Respiratory system
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Our respiratory system can be affected by allergies if the air we breathe contains certain substances, like pollen. Asthma and rhinitis are two common types of allergies. What is an allergy? What are…
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