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STATES OF MATTERNatural Science: 1st Secondary Education   http://www.youtube.com/watch?v=R18pczZ6fZM&context=C4e1b716ADvj...
STATES OF MATTERNatural Science: 1st Secondary EducationAnswers    1. true – false – true – true – true – false    2. Stud...
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Changes states of matter

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Changes states of matter

  1. 1. STATES OF MATTERNatural Science: 1st Secondary Education http://www.youtube.com/watch?v=R18pczZ6fZM&context=C4e1b716ADvjVQa1PpcFOuoQlu3NuNCvG8aVkPC9yjVjN-LBLmvdc=Before watching the video1. What do you know about …? Write TRUE or FALSE. • There are three states of matter: solid, liquid, gas. • Matter never changes. • Solids can turn into liquids. • Liquids can turn into gas. • Liquids can turn into solids. • Water freezes at 0º C.2. Which words do you think you will listen in the video to refer to changes instate of matter? Discuss with your partner.3. You will hear the following words in the video. Do you know its meaning? Use adictionary to help you.kind melting pointsubstance freezing pointboil boiling pointturn into averagevapour take upevaporation be boundbubble hollowput apart ringheat exemptionsmelt mistAfter watching the video4. Finish the following sentences. • When water boils it turns into a … • For water the boiling point is … • The process by which a liquid turns into a gas is called… • The melting point of ice is… • The freezing point of water is… • When a solid changes directly to a gas, this change is called…5. Explain in your own language what you understood after watching the video.©Ángela M. Ruiz Montero – http://letsclil.blogspot.com
  2. 2. STATES OF MATTERNatural Science: 1st Secondary EducationAnswers 1. true – false – true – true – true – false 2. Student’s own answers 3. kind - clase substance - sustancia boil - hervir turn into – convertirse en vapour - vapor evaporation - evaporación bubble - burbuja put apart - separar heat - calentar melt – derretir(se) melting point – punto de fusión freezing point – punto de congelación boiling point – punto de ebullición average – promedio, media take up - ocupar be bound – estar unido, atado hollow - hueco ring - anillo mist - vaho4. gas – 100ºC – evaporation – 0ºC – 0ºC - sublimation©Ángela M. Ruiz Montero – http://letsclil.blogspot.com

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