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Prior Thoughts

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Title: Prior Thoughts


1
Prior Thoughts Knowledge
  • Have I ever had any real life experience I can
    share?
  • What do I already know?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

2
Classroom Chemistry
  • Grade 5 Science
  • Mr. Pukalo

3
Introduction
  • Mr. Pukalo
  • What is important to me?
  • Following God, family, friends
  • What do I like to do in my spare time? outdoors,
    sports, reading, music
  • My favorite video in the world http//www.youtube.
    com/watch?v3Ya12I036lgsafety_modetruepersist_s
    afety_mode1

4
In the Classroom
  • What is important?
  • Fun (but this can only happen if)
  • Respect AND LISTENING to each others
    ideas/opinions (HANDS UP if you want to talk)
  • No negative
  • Discussion vs. writing notes
  • Share and value each others ideas

5
Your turn
  • Does the class like videos??
  • 1. What is important to you for a teacher to do?
  • 2. How can we create a class that will be fun but
    ensure we are learning what we have to learn?
  • 3. What is your responsibility to ensure this
    will happen?
  • Share experiments/ideas

6
Check it out!
  • Intro video
  • http//www.youtube.com/watch?vRFe5krFaqUIsafety_
    modetruepersist_safety_mode1

7
What is Chemistry?
  • What do you know about Chemistry? (KWL)
  • What do you like?
  • What do you dislike?
  • What do you hope to learn?

8
Prior Thoughts Knowledge
  • Have I ever had any real life experience I can
    share?
  • What do I already know?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

9
What is Chemistry
  • The study of Matter and how it interacts
  • Solids, liquids gas

10
Beginning of Chemistry
  • In the Beginning (11-2)
  • 1In the beginning God acreated the bheavens and
    the cearth.2The earth was formless and empty, and
    darkness covered the deep waters. And the dSpirit
    of God was hovering over the surface of the
    waters.
  • http//www.youtube.com/watch?vwJYaAbrWsvAfeature
    relatedsafety_modetruepersist_safety_mode1
  • Piper the glory of God
  • http//www.youtube.com/watch?v-Ibc8sD5sgwfeature
    relatedsafety_modetruepersist_safety_mode1
  • Fingerprint of God

11
Classroom Chemistry
  • What do Chemists do?
  • http//www.youtube.com/watch?v66kuhJkQCVM

12
Final Thoughts
  • What did I learn today?
  • Favorite part of todays lesson?

13
Other Careers Using Chemistry
  • Doctor
  • Engineer
  • Pharmacist
  • Chemistry Teacher

14
Where does Chemistry take place?
  • In the natural world
  • In the manufactured world
  • Daily life

15
Social Implications
  • The field of chemistry shapes society and is
    shaped by society (both effect each other)
  • What are the possible social implications in
    chemistry?
  • http//www.youtube.com/watch?vRFe5krFaqUIsafety_
    modetruepersist_safety_mode1

16
Social Implications
  • Communication devices, media, ipods
  • Employs millions of people
  • Healthier foods
  • Edible paint
  • Rice that can grow anywhere
  • Health and medical (drugs)
  • Ice, gum,

17
In your everyday life where do you see Chemistry?
  • http//www.youtube.com/watch?vQ3Tt2EM4e-Usafety_
    modetruepersist_safety_mode1

18
How is chemistry shaped by society
  • Meeting the needs and wants of society

19
How is society shaped by chemistry?
  • What changes/technology advancements have been
    made by technology?

20
Final Thoughts
  • 4. Where does Chemistry take place?
  • 5. Social implications

21
Your Turn
  • 1. What should I keep doing ? (Favorite part of
    the lessons so far.)
  • 2. What should I stop doing?
  • 3. What should I start doing?
  • 4. Favorite or most interesting part.
  • 5. Least favorite or interesting part so far.

22
Unit Road Map
6. Produce carbon dioxide gas through
the interaction of solids and liquids,
and demonstrate that it is different from air. 7.
Distinguish reversible from irreversible changes
of materials, and give examples of each. 8.
Recognize and describe evidence of a chemical
reaction. Explain how the products of a reaction
differ from the original substances. 9. Use an
indicator to identify a solution as being acidic
or basic.
  • Students will
  • 1. Recognize and identify examples of mixtures.
  • 2. Apply and evaluate a variety of techniques for
  • separating different materials.
  • 3. Distinguish substances that will dissolve in a
  • liquid from those that will not, and
  • demonstrate a way of recovering a material
  • from solution.
  • 4. Demonstrate a procedure for making a crystal.
  • 5. Recognize that the surface of water has
  • distinctive properties, and describe the
  • interaction of water with other liquids and
  • solids.

23
States of Matter
24
Check it out!
  • Music Video
  • http//www.youtube.com/watch?vtBQcpF_j5Xgfeatur
    erelated

25
Prior Thoughts Knowledge
  • Solids, Liquids and Gases
  • What do I already know?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

26
Matter
  • Matter is the substance of which physical objects
    are composed.
  • Matter is anything that takes up space.
  • It can be solid, liquid or gas.

27
Brain Pop What makes a state of matter?
  • What is the difference between solids, liquids,
    and gases?
  • What is a phase change?
  • What exactly is plasma?
  • What state of matter is oobleck?
  • What is aerogel?
  • Are there seven states of matter?
  • Is a bucket of snow heavier than a bucket of
    water?
  • Why is ice so cold?
  • What is Boyle's Law?
  • Why can I see my breath on a cold day?
  • http//www.brainpop.com/science/matterandchemistry
    /statesofmatter/

28
States of Matter Review
29
Solids MOST DENSE
  • Molecules are attached and bunched together in a
    solid form.
  • Doesnt change shape easily.
  • Another solid cannot pass through easily
  • Take up least space

30
Examples
31
Liquid
  • Molecules fill the space of the container they
    are in.
  • They can shape easily.
  • A solid can pass through it.

32
Examples
33
Gas Least Dense
  • Molecules freely move around. They are not
    closely bound together.
  • Changes shape easily
  • A solid can pass through it easily.
  • Gases Video http//www.youtube.com/watch?vWcNDYe6
    KaTk
  • Take up most space

34
Examples
35
(No Transcript)
36
Review questions
  • What is matter? is the substance of which
    physical objects are composed.
  • Liquid
  • Fixed volume but no fixed shape
  • Gas (add energy)
  • No fixed volume and no fixed shape
  • Solids (lower temperature remove energy)
  • Fixed volume and fixed shape

37
Brain Pop Measuring Matter
  • What is matter?
  • What is the relationship between mass, weight,
    and gravity?
  • I want to know how something can have the same
    volume yet a different mass?
  • What is displacement and how do we use it?
  • Whats the difference between mass and weight?
  • My school is having a contest to guess how many
    MMs are in a jar. How do you figure it out?
  • What is Boyle's Law?
  • What is volume?
  • What is a liter?
  • What are measuring cups?
  • http//www.brainpop.com/science/matterandchemistry
    /measuringmatter/

38
  • Bill Nye music video http//www.youtube.com/watch?
    vUvRvOYCjUP0featurerelated
  • Computer Simulation http//www.bbc.co.uk/schools/k
    s2bitesize/science/materials/changing_state/play.s
    html

39
Review of Matter
  • 1. What are the three states of matter?
  • 2. What is the major differences between the
    three states of matter
  • Shape
  • Volume

40
Final Thoughts
  • What did I learn today?
  • Favorite part of todays lesson?

41
Quiz Time
  • 1. Put first and last name on test
  • 2. Circle the correct answer
  • 3. Absolute silence (talk 0)
  • 4. Put your hand up if you have a question

42
Marking
  • 1. Marked by Sarah
  • 2. Questions please ask

43
Review
  • States of matter
  • Solid, liquid and gas are called the three states
    of matter.
  • Materials can be changed from one state to
    another by heating or cooling.

44
Review
  • Does air have mass?
  • Are different substances solid, liquid and gas at
    different temperatures?
  • If you want to melt or boil something what would
    you do?
  • If you wanted to create a vehicle what substance
    would you want to use?

45
Homework
  • Diet coke (7 people)
  • MINT mentos
  • Think about find or do a cool experiment write it
    down, draw a picture and show the class on
    Monday.

46
Quiz feedback
  • Put first last name on all tests
  • Use a different color to mark
  • Great job!! Keep up the good work.

47
Changing States of Matter
48
Review 3 States of matter
  • Matter is
  • Liquid
  • Fixed volume but no fixed shape
  • Gas (add energy)
  • No fixed volume and no fixed shape
  • Solids (lower temperature remove energy)
  • Fixed volume and fixed shape
  • Song Review

49
Check it out!
  • http//www.youtube.com/watch?v5bCNddIG7CIfeature
    fvwsafety_modetruepersist_safety_mode1

50
Prior Thoughts Knowledge
  • How can we change the state of matter?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

51
Prior Thoughts Knowledge
  • Liquid to Solid-
  • Freezing
  • Solid to Liquid
  • Melting
  • Liquid to Gas-
  • Evaporation
  • - Gas to Liquid- Condensation
  • song http//www.youtube.com/watch?vY9g0jrvd-asf
    eaturerelatedsafety_modetruepersist_safety_mod
    e1

52
  • Heating
  • If ice (solid) is heated, it changes to water
    (liquid). This change is called melting.
  • If water (liquid) is heated, it changes to water
    vapour (gas). This change is called evaporation.
  • Cooling
  • If water vapour (gas) is cooled, it changes to
    water (liquid). This change is called condensing.
  • If water (liquid) is cooled, it changes to ice
    (solid). This change is called freezing.

53
Review
  • Changing States Chart

54
  • The water cycle
  • Water on the earth is constantly moving. It is
    recycled over and over again. This recycling
    process is called the water cycle.
  • a. Water evaporates into the air The sun heats up
    water on land, and in rivers, lakes and seas and
    turns it into water vapour. The water vapour
    rises into the air.
  • b. Water vapour condenses into clouds Water
    vapour in the air cools down and changes back
    into tiny drops of liquid water, forming clouds.
  • c. Water falls as rain The clouds get heavy and
    water falls back to the earth in the form of rain
    or snow.
  • d. Water returns to the sea Rain water runs over
    the land and collects in lakes or rivers, which
    take it back to the sea. The cycle starts all
    over again.

55
Brain Pop Changing States
  • Questions
  • What is a phase change?
  • How is the melting point of one object the
    freezing point of another?
  • What is the difference between solids, liquids,
    and gases?
  • What are chemical and physical changes?
  • Sublimation sounds neat. Can you tell me about
    it?
  • Why does water expand when it freezes?
  • Qué es un Géiser?
  • Why is ice so cold?
  • Why does ice melt?
  • What is supercooling?
  • http//www.brainpop.com/science/matterandchemistry
    /matterchangingstates/

56
Changing States Review
  • What causes change of states?
  • Temperature and pressure (physical change)
  • Melting (solid ? liquid)
  • Heat of fusion breaking ice bonds

57
Brain Pop Changing States
  • Questions
  • What is a phase change?
  • How is the melting point of one object the
    freezing point of another?
  • What is the difference between solids, liquids,
    and gases?
  • What are chemical and physical changes?
  • Sublimation sounds neat. Can you tell me about
    it?
  • Why does water expand when it freezes?
  • Qué es un Géiser?
  • Why is ice so cold?
  • Why does ice melt?
  • What is supercooling?
  • http//www.brainpop.com/science/matterandchemistry
    /matterchangingstates/

58
Mixtures
59
Mixtures
  • Matter can generally be mixed with other types of
    matter.
  • A mixture is a physical combination of two or
    more pure substances (elements or compounds)
  • A mixture is when particles of one substance
    mixes with particles of another substance. They
    are generally pure substances.
  • Materials in a mixture can be separated using
    techniques such as filtration, screening and
    sedimentation

60
Prior Thoughts Knowledge
  • Have I ever had any real life experience I can
    share?
  • What do I already know?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

61
Where do we see mixtures?
  • Examples recipes, construction-concrete, water,
    lemonade, salad dressings.

62
Separating Mixtures
  • How can you separate substances from a mixture?
  • Methods of Separating sieves, magnets, air,
    water, evaporation, distilling, filtering

63
Methods of Separating
  • Sieves can be used to separate solids.
  • Magnets can pick magnetic objects, from
    non-magnetic.

64
Methods of Separating
  • Air you can blow away lighter substances, to
    leave heavier ones.
  • Water some substances will float or sink based
    on their buoyancy.

65
Methods of Separating
  • Evaporation evaporate the liquid and leave the
    solid.
  • Distilling the processing of vaporizing into gas
    and then condensing back into a liquid

66
Methods of Separating
  • Filtration using a filter and pouring the liquid
    through to separate the solid.
  • http//www.bbc.co.uk/schools/scienceclips/ages/10_
    11/rev_irrev_changes.shtml
  • http//www.mcgrawhill.ca/school/applets/bcscience7
    /mixtures/index.htm
  • MASTER 2/ Seperating mixtures observation
    booklet

67
Brainpop - Mixtures
  • http//www.brainpop.com/science/matterandchemistry
    /compoundsandmixtures/
  • Whats the difference between a mixture and a
    compound?
  • What is a colloid?
  • Does the type of bonding affect the physical
    properties of a compound?
  • Do compounds and mixtures cause chemical or
    physical changes?
  • What is a solution?
  • Can you separate mixtures?
  • Why does sodium explode if it touches water? Why
    doesnt that happen with the sodium in salt?
  • What does heterogeneous mean?
  • What are catalysts?
  • What is homogenization?

68
Review
  • Compound chemical change, properties
    CHANGE mixture physical change, retains
    original properties
  • Hetrogeneous mixture can see two substances
  • Homogenous mixture LOOKS LIKE sz mONE
    SUBSTANCE!

69
Review
  • What is the difference between a homogenous
    mixture and a compound?
  • THEY LOOK THE SAME!!

70
Mixtures
  • Homogeneous
  • Hetrogeneous
  • http//www.youtube.com/watch?vMNTIRarrvoUfeature
    relatedsafety_modetruepersist_safety_mode1

71
Final Thoughts
  • What did I learn today?
  • Favorite part of todays lesson?

72
Mixing Liquids Gases
73
Check it out!
  • http//www.youtube.com/watch?vB3kodeQnQvUfeature
    channelsafety_modetruepersist_safety_mode1

74
Prior Thoughts Knowledge
  • Have I ever had any real life experience I can
    share?
  • What do I already know?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

75
Mixing Gas - Carbon Dioxide
  • Air is composed of 78 Nitrogen, 21 oxygen and
    1 other gases like carbon dioxide, water vapour,
    helium, etc.
  • We breath oxygen.
  • Carbon Dioxide is the gas we breath out. That is
    formed from burning fuel.
  • Carbon dioxide is heavier than oxygen
  • Gas in a Bag activity. BLM 12

76
Mixing Liquids
  • Some liquids mix completely and are unable to be
    separated. eg Milk and Tea
  • Some liquids do not dissolve in others and are
    more buoyant. eg oil and water
  • Some liquids are heavier, less buoyant and settle
    on the bottom. eg syrup

77
Mixing Liquids
  • Some liquids react to each other. Eg vinegar and
    milk.
  • Some liquids are able to dissolve solids, while
    some are not.
  • Lemonade is an example of a liquid mixture.

78
Activity Layering Liquids
  • Why were the liquids able to be layered and not
    mixed?
  • Try mixing two different liquids, record your
    observations.

79
Lifesaver Experiment
  • BLM 6 and 7
  • Observe how long the lifesaver takes to dissolve
  • The lifesaver dissolved into the water
  • Dissolve is when a solid crumbles into a liquid.
  • Can you make it dissolve faster?

80
Lifesaver Experiment Inferences
  • Manipulated Variable-
  • Responding Variable- amount of time it will take
    to dissolve a lifesaver.

81
Solutions
  • A homogeneous mixture in which the solute is
    uniformly distributed throughout the solvent.
  • Solute- The substance that is being dissolved in
    a solution.
  • Solvent- the substance that does the dissolving
    in a solution

82
Suspension (Master 8)
  • A mixture in which very small particles of a
    solid remain suspended without dissolving.
  • Heterogeneous Mixture- when one substance is
    unevenly mixed with another.

83
Separating Solutions
  • Filtering
  • Pouring off the liquid
  • Evaporation
  • Solution to Recovery Activity

84
Crystal Experiment
85
Brain Pop - Crystals
  • What are crystals and how do they form?
  • What is a lattice?
  • How can you grow your own crystals?
  • What are some different types of crystals?
  • Why do different crystals have different colors
    and shapes?
  • What are the seven main shapes of crystals?
  • What is quartz?
  • What is a geode?
  • How can you tell if a crystal is really worth
    anything?
  • What are sapphires?

86
Brain Pop - Liquid Crystals
  • http//www.brainpop.com/science/earthsystem/crysta
    ls/fyi/

87
Crystals (Master 10)
  • We can recover a dissolved substance by
    evaporation.
  • We can create crystals when the liquid evaporates.

88
Surface Tension
89
Check it out!
  • http//www.youtube.com/watch?vyied0a0DY9Qsafety_
    modetruepersist_safety_mode1

90
Surface Tension
  • Water droplets are round and shaped like balloons
  • The film that forms on the surface of the water
    is called surface tension.
  • Surface tension is due to cohesion. An
    attraction of the molecules in water.

91
Surface Tension
  • Water is very cohesive. The water molecules act
    like glue.
  • Penny Challenge
  • Paper Clip MASTER 11
  • Why was the water able to bulge up?
  • Surface tension-cohesion of water molecules.

92
Physical Chemical Changes
93
Check it out!
  • Fireworks http//www.youtube.com/watch?v0Mbf1Pfl_
    2Usafety_modetruepersist_safety_mode1

94
Prior Thoughts Knowledge
  • Have I ever had any real life experience I can
    share?
  • What do I already know?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

95
Brain Pop - Changes
  • http//www.brainpop.com/science/matterandchemistry
    /propertychanges/
  • What are chemical and physical changes?
  • What is the difference between a reversible and a
    non-reversible change?
  • Do compounds and mixtures cause chemical or
    physical changes?
  • Why and how do apples turn brown? Is this a
    chemical or physical change?
  • What is the difference between a physical change
    and a chemical change?
  • When wood burns, is it a chemical or physical
    change?
  • What are physical and chemical properties of
    matter?
  • What is a phase change?
  • Does the type of bonding affect the physical
    properties of a compound?
  • What is rust?

96
Chemical Reaction
  • These are changes where two substances react
    chemically and they make a new substance.
  • a chemical reaction is a process by which one or
    more substances are transformed into one or more
    new substances
  • Testing Powders Activity

97
Evidence of a Chemical Reaction
  • an external indicator may accompany a reaction
  • colour change,
  • production of a gas
  • release heat
  • formation of a precipitate
  • odour

98
Reversible and Irreversible Changes
  • Reversible (physical) changes can go back to
    their original state.
  • Irreversible (chemical) changes cannot go back to
    their original state.
  • Bill Nye Chemical Changes http//www.youtube.com/w
    atch?v66kuhJkQCVM

99
(Chemical) Irreversible or Reversible (Physical)
  • Heat
  • Light
  • Smell
  • Color change
  • Precipitate forms

100
Chemical Physical Changes
  • A chemical change is a change in matter in which
    one or more new substances is produced. This
    process is not easy to reverse. Some clues that a
    chemical change has taken place are a change in
    color, the release of gas, heat, light, or an
    odor. When you burn wood, the wood is chemically
    changed (into ashes) by the fire. A physical
    change is a change in matter in which no new
    substance is produced. This is usually a change
    from one state to another, and can be reversed. A
    good example of a physical change is water
    turning into ice and melting back into the liquid
    form again.

101
Mixture Compound Review
  • A compound is a substance that is formed as the
    result of chemical changes. A mixture is a
    substance that results from physical changes.
    When atoms of two or more elements bond to form a
    new molecule, youve got a compound. Water is a
    compound, because it is made up of one hydrogen
    atom and two oxygen atoms. A mixture is when two
    or more elements or compounds are mixed together,
    but there is no chemical change. Lemonade is an
    example of a mixtureit mixes the elements that
    make up sugar and water and lemon juice, but
    these elements dont form new molecules when
    theyre mixed together.

102
Irreversible Changes
  • Online powerpoint
  • http//www.slideshare.net/stanhopekris/reversible-
    and-irreversible-changes
  • Review reversible changes powerpoint
  • http//www.bbc.co.uk/schools/ks2bitesize/science/m
    aterials/reversible_irreversible_changes/play.shtm
    l

103
Changes
  • Summary activities and challenges
  • http//www.teachingandlearningresources.co.uk/6d-s
    cience.shtml
  • Online Experiment (MASTER 12)
  • http//www.bbc.co.uk/schools/scienceclips/ages/10_
    11/rev_irrev_changes.shtml

104
Acids Bases
105
Check it out!
  • http//www.youtube.com/watch?vIIu3rrGfnUUsafety_
    modetruepersist_safety_mode1

106
Prior Thoughts Knowledge
  • Have I ever had any real life experience I can
    share?
  • What do I already know?
  • How did I learn this?
  • Is the source reliable and scientific?
  • How sure am I it is true? Absolutely sure, fairly
    confident or not sure?

107
Brain Pop Acids Bases
  • http//www.brainpop.com/science/matterandchemistry
    /acidsandbases/
  • What are some examples of acids and bases that we
    use in our everyday lives?
  • How come the acids in our tummy dont burn us?
  • Do acids burn your skin?
  • What is pH?
  • What are organic bases?
  • What is the Brønsted-Lowry theory?
  • What is acid rain?
  • Why do onions make us cry?
  • Why does vinegar make eggs feel like rubber?
  • What is the chemical formula for battery acid?
    Also, I know its dangerous as a liquid, but what
    about when its a powder?

108
Ph
  • An acid is substance that has ph less than 7
  • A base is a substance that has a ph greater than
    7.
  • Neutral has a ph of 7
  • Both acids and bases are potentially harmful and
    they eat away at other substances.

109
Brain Pop - Ph
  • http//www.brainpop.com/science/matterandchemistry
    /phscale/
  • What is pH?
  • I saw on a commercial that something was pH
    balanced. What does that mean?
  • If I want to do my own tests at home to see what
    the pH levels of things are, how do I get those
    little strips?
  • What are some examples of acids and bases that we
    use in our everyday lives?
  • What are organic bases?
  • What is the Brønsted-Lowry theory?
  • Where is the lemon on the pH scale?
  • What is the pH of milk?

110
Acids and Bases
  • Test household products online to see if acid or
    base.
  • http//www.proteacher.com/cgi-bin/outsidesite.cgi?
    externalhttp//www.miamisci.org/ph/guide.htmlori
    ginalhttp//www.proteacher.com/110052.shtmltitle
    The pH Factor

111
Indicators
  • An indicator changes colour in the presense of
    acidic and basic solutions. It will be one colour
    for acidic solutions, and another color for basic
    solutions. With some indicators, the intensity of
    the color increases with the intensity of the
    acidity of 'basic-ness' of the solution.
  • Cabbage is a natural indicator.
  • An Acid turns pink and a base turns green
  • Examples of acid-base indicators
  • 1.) Litmus Paper
  • acidic solutions will turn the blue litmus paper
    to red while basic solutions will turn
  • the red litmus paper to blue
  • 2.) Congo Red
  • basic solutions will change the color of the
    entire solution into blue

112
Litmus Paper
  • Video http//www.youtube.com/watch?vzTLiJE-j1-Is
    afety_modetruepersist_safety_mode1
  • Litmus paper is used to determine if a liquid is
    acidic or basic
  • Red Paper- acid stays red, base turns it blue
  • Blue Paper- acid turns it red, base stays blue.
  • Neutral- blue paper stays blue, red paper stays
    red.

113
Final Thoughts
  • What did I learn today?
  • Favorite part of todays lesson?

114
Nano Technology
  • http//www.brainpop.com/science/matterandchemistry
    /nanotechnology/
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