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Microteaching states of matter

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Microteaching states of matter

1. 1. MICROTEACHING on “STATES OF MATTER”1 (TEACHER´S SHEET) by Angela and Ana (2012) 1) WARMING ACTIVITY: HANGMAN (The hidden words are STATES OF MATTER) 2) PROPRERTIES OF MATERIALS: Students work in pairs with two sets of cards; they have to match the questions with the words SOLID, LIQUID, GAS. “Work in pairs. Try to match the question cards with the three words SOLID,LIQUID, GAS”In which state does Which state of In which state are In which state can a material fill the matter has no materials generally a material flow butwhole volume of any definite shape, but most resistent to cant disperse? container? definite volume? changing shape? Which state of Which state of matter does notmatter has definite have a definiteshape and definitive shape and definite volume? volume? SOLID LIQUID GAS1 Criticicism: write on the board the whole planning at the beginning of the lesson download the video in you computer: dont trust the Internet it might be difficult to get the word “forces” or “bonds” in questions activity 4 the consolidating and extending activity needs more work more activities for the students to disccuss
2. 2. 3)ACTIVITY: BALLS AS MOLECULES • One ball for student. • Students sit on the floor in circle and hold one ball each, close each other (groups of five) • Model 1 (solid): students gently wave the balls • Model 2 (liquid): students exchange to each other the balls, rolling them on the floor • Model 3 (gas): students throw around the balls that move at random4) QUESTIONS: Work in pairs. • Think of the situations 1, 2, 3 in the previous activity and of the cards you have put in order before. Decide which model 1, 2 o 3 best match the descriptions. • Why could or could not the balls move? • What does hold the balls close? (We look for the words “forces” or “bonds”)5) VIDEO: http://teacher.scholastic.com/activities/studyjams/matter_states/ • Watch a short video once. Then, watch it again and put a tick on the words in the word bank below. • Check all together and exercise the pronunciation. • Finally read the meaning of some words in the vocabulary. MELTING POINT molecules freeze EVAPORATION SLOWER speeding up BECAME Fahrenheit state of matter solid COOL DOWN faster LIQUID matter TURNS TO heat slow down GAS CONDENSATION freezing point
3. 3. * Let´s practice the pronounciation of these wordsmatter /ˈmatə(r)/ speed up /spiːd ʌp/states of matter /steɪt.../ become /bɪˈkʌm/solids /ˈsɒlɪd/ turn to /tɜːn tə/liquids /ˈlɪkwɪds/ melts /melts/gases /ɡasɪs / melting pointmolecules /ˈmɒlɪkjuːls/ fusion /ˈfjuːʒn/atoms /ˈatəms/ evaporation /ɪvapəˈreɪʃn/ /particles /ˈpɑːtɪkls/ cool downheat /hiːt/ slow downfire /ˈfʌɪə(r)/ condensation /kɒndenˈseɪʃn/movement /ˈmuːvmənt/ freeze /friːz/fast freezing point /ˈfriːzɪŋ/ Glossary Molecule: the smallest unit into which a substance can be diveded withoutchanging its chemical qualities. To speed up: to make something move at greater speed. To slow down: to go or make something go more slowly. To cool down: to get cooler. To turn into: to become or make sth become another thing. To melt: to become liquid from solid. Melting: the process in which a solid turns into ... Melting point: the temperature at which a solid melts. Fusion = melting Evaporation: the process in which a liquid turns into .... To freeze: to change from a liquid to a solid as a result of extreme cold. Freezing: the process in which a liquid turns into... as a reult of... Freezing point: the temperature at which a liquid freezes.
4. 4. 6. CONSOLIDATION AND EXTENDING ACTIVITY (key)Split yourselves into groups of two or three people. Try to put the strips into asensible order. Solid- Molecules packed so tightly together that they cannot move anywhere- still vibrate with energy though.Solids have a fixed shape and size.Most solids are crystalline, where the molecules are tightly bound to each other, andare arranged in specific repeating patterns.Liquid- The bonds between the molecules in the solid break when it melts. Whenheating a solid, its molecules speed up and the increasing vibration eventually breaksthe bonds. Molecules in liquids are touching but can move around. This makes water flow and pour. Liquids can change in shape, but have a fixed size. The solid form of a substance usually takes up less space than the liquid form, because the molecules are tidily arranged.However, water and ice are unusual because ice takes up more room than water. Thismakes it less dense than water, so it floatsGas- molecules have lots of space to move around but bump into each other a lotbecause they move so fast. Gases can change shape and size. In gases, the molecules are not connected to each other and can move around freelyThe bubbles in boiling water are bubbles of steam that form at the bottom and riseto the surface.
5. 5. In which state does Which state of In which state can a material fill the matter has no a material flow whole volume of definite shape, but but cant disperse? any container? definite volume? Which state of In which state are Which state of materials matter does notmatter has definite generally most have a definite shape and resistent to shape and definitedefinitive volume? changing shape? volume? SOLID GAS LIQUID
6. 6. MICROTEACHING (STUDENT´S SHEET) 1) WARMING ACTIVITY: HANGMAN 2) PROPRIETIES OF MATERIALS: “Work in pairs. Try to match the question cards with the three words SOLID,LIQUID, GAS” In which state does a In which state can a Which state of matter has material fill the whole material flow but cant no definite shape, but volume of any container? disperse? definite volume? In which state areWhich state of matter has Which state of matter materials generally most definite shape and does not have a definite resistent to changing definitive volume? shape and definite volume? shape? 3)ACTIVITY: BALLS AS MOLECULES 4) QUESTIONS: Work in pairs. • Think of the situations 1, 2, 3 in the previous activity and of the cards you have put in order before. Decide which model 1, 2 o 3 best match the descriptions. • Why could or could not the balls move? • What does hold the balls close? 5) VIDEO • Watch a short video once. Then, watch it again and put a tick on the words in the word bank below. • Check all together and exercise the pronunciation. • Finally read the meaning of some words in the vocabulary.MELTING POINT molecules freeze EVAPORATIONSLOWER speeding up BECAME Fahrenheitstate of matter solid COOL DOWN fasterLIQUID matter TURNS TO heatslow down GAS CONDENSATION freezing point
7. 7. * Let´s practice the pronounciation of these wordsmatter /ˈmatə(r)/ speed up /spiːd ʌp/states of matter /steɪt.../ become /bɪˈkʌm/solids /ˈsɒlɪd/ turn to /tɜːn tə/liquids /ˈlɪkwɪds/ melts /melts/gases /ɡasɪs / melting pointmolecules /ˈmɒlɪkjuːls/ fusion /ˈfjuːʒn/atoms /ˈatəms/ evaporation /ɪvapəˈreɪʃn/ /particles /ˈpɑːtɪkls/ cool downheat /hiːt/ slow downfire /ˈfʌɪə(r)/ condensation /kɒndenˈseɪʃn/movement /ˈmuːvmənt/ freeze /friːz/fast freezing point /ˈfriːzɪŋ/ Glossary Molecule: the smallest unit into which a substance can be diveded withoutchanging its chemical qualities. To speed up: to make something move at greater speed. To slow down: to go or make something go more slowly. To cool down: to get cooler. To turn into: to become or make sth become another thing. To melt: to become liquid from solid. Melting: the process in which a solid turns into ... Melting point: the temperature at which a solid melts. Fusion = melting Evaporation: the process in which a liquid turns into .... To freeze: to change from a liquid to a solid as a result of extreme cold. Freezing: the process in which a liquid turns into... as a reult of... Freezing point: the temperature at which a liquid freezes.
8. 8. 6.- CONSOLIDATION AND EXTENDING ACTIVITY. Split yourselves into groupsof two or three people. Try to put the strips into a sensible order.Solids have a fixed shape and size.Most solids are crystalline, where the molecules are tightly bound to each other, andare arranged in specific repeating patterns.Liquid- The bonds between the molecules in the solid break when it melts. Whenheating a solid, its molecules speed up and the increasing vibration eventually breaksthe bonds. Molecules in liquids are touching but can move around. Solid- Molecules packed so tightly together that they cannot move anywhere- still vibrate with energy though.The bubbles in boiling water are bubbles of steam that form at the bottom and riseto the surface. Gases can change shape and size. In gases, the molecules are not connected to each other and can move around freelyHowever, water and ice are unusual because ice takes up more room than water. Thismakes it less dense than water, so it floatsGas- molecules have lots of space to move around but bump into each other a lotbecause they move so fast.