1. The document outlines a microteaching lesson plan on states of matter for students. 2. It includes warm up activities like hangman to review key terms, matching properties to solids, liquids, and gases. 3. A modeling activity uses balls to demonstrate the movement and bonding of molecules in solids, liquids, and gases. 4. Students then answer questions about the models and watch a video defining additional vocabulary before consolidating their understanding.

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 but
whole volume of any definite shape, but most resistent to
can't disperse?
container? definite volume? changing shape?
Which state of
Which state of
matter does not
matter has definite
have a definite
shape and definitive
shape and definite
volume?
volume?
SOLID LIQUID GAS
1 Criticicism: write on the board the whole planning at the beginning of the lesson
download the video in you computer: don't 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. 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 random
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? (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. * Let´s practice the pronounciation of these words
matter /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 point
molecules /ˈmɒlɪkjuːls/ fusion /ˈfjuːʒn/
atoms /ˈatəms/ evaporation /ɪvapəˈreɪʃn/ /
particles /ˈpɑːtɪkls/ cool down
heat /hiːt/ slow down
fire /ˈfʌɪə(r)/ condensation /kɒndenˈseɪʃn/
movement /ˈmuːvmənt/ freeze /friːz/
fast freezing point /ˈfriːzɪŋ/
Glossary
Molecule: the smallest unit into which a substance can be diveded without
changing 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. 6. CONSOLIDATION AND EXTENDING ACTIVITY (key)
Split yourselves into groups of two or three people. Try to put the strips into a
sensible 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, and
are arranged in specific repeating patterns.
Liquid- The bonds between the molecules in the solid break when it melts. When
heating a solid, its molecules speed up and the increasing vibration eventually breaks
the 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. This
makes it less dense than water, so it floats
Gas- molecules have lots of space to move around but bump into each other a lot
because they move so fast.
Gases can change shape and size. In gases, the molecules are not
connected to each other and can move around freely
The bubbles in boiling water are bubbles of steam that form at the bottom and rise
to the surface.

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 can't disperse?
any container? definite volume?
Which state of In which state are
Which state of materials
matter does not
matter has definite generally most
have a definite
shape and resistent to
shape and definite
definitive volume? changing shape?
volume?
SOLID GAS LIQUID

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 can't no definite shape, but
volume of any container? disperse? definite volume?
In which state are
Which 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 EVAPORATION
SLOWER speeding up BECAME Fahrenheit
state of matter solid COOL DOWN faster
LIQUID matter TURNS TO heat
slow down GAS CONDENSATION freezing point

7. * Let´s practice the pronounciation of these words
matter /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 point
molecules /ˈmɒlɪkjuːls/ fusion /ˈfjuːʒn/
atoms /ˈatəms/ evaporation /ɪvapəˈreɪʃn/ /
particles /ˈpɑːtɪkls/ cool down
heat /hiːt/ slow down
fire /ˈfʌɪə(r)/ condensation /kɒndenˈseɪʃn/
movement /ˈmuːvmənt/ freeze /friːz/
fast freezing point /ˈfriːzɪŋ/
Glossary
Molecule: the smallest unit into which a substance can be diveded without
changing 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. 6.- CONSOLIDATION AND EXTENDING ACTIVITY. Split yourselves into groups
of 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, and
are arranged in specific repeating patterns.
Liquid- The bonds between the molecules in the solid break when it melts. When
heating a solid, its molecules speed up and the increasing vibration eventually breaks
the 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 rise
to the surface.
Gases can change shape and size. In gases, the molecules are not
connected to each other and can move around freely
However, water and ice are unusual because ice takes up more room than water. This
makes it less dense than water, so it floats
Gas- molecules have lots of space to move around but bump into each other a lot
because they move so fast.