properties of matter (7th grade)
DESCRIPTION
Properties of matter 7th grade.TRANSCRIPT
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INTRODUCION to MATTER S.I
Ignacio Anguera de Sojo
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Propreties of
matter
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1.- matter:What is matter
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1.- matter:
Matter is anything that has mass and takes up space
What is matter
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1.- matter:
Matter is anything that has mass and takes up space
What is matter
Which two properties has all matter?
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1.- matter:
Matter is anything that has mass and takes up space
What is matter
Which two properties has all matter?
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1.- matter:
Matter is anything that has mass and takes up space
What is matter
Which two properties have all matter?
My cat has mass and take up space, so it is MATTER!!!
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2.- Atoms:What is matter
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2.- Atoms:What is matter
Atom: building block of matter. Is the smallest unit of an element that maintains the properties of the element• Metals: shiny, good conductors of heat & current, malleable & ductile• Non-metals: Dull, poor conductors, brittle• Metalloids: Mix of metals and non metal properties
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2.- Atoms:Atom: building block of matter. Is the smallest unit of an element that maintains the properties of the element• Metals: shiny, good conductors of heat & current, malleable & ductile• Non-metals: Dull, poor conductors, brittle• Metalloids: Mix of metals and non metal properties
What is matter
Which are the differences between metals an non-metals?
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2.- Atoms:Atom: building block of matter. Is the smallest unit of an element that maintains the properties of the element• Metals: shiny, good conductors of heat & current, malleable & ductile• Non-metals: Dull, poor conductors, brittle• Metalloids: Mix of metals and non metal properties
What is matter
Which are the differences between metals and non-metals?
Thor hammer is metal. Malleable and ductile… far from brittle!
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3.- Pure substances:What is matter
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3.- Pure substances:
Pure substances: form only by one type of atom or molecule with definite chemical/physical properties. Two types:• Elements: a single type of atom• Compounds: single type of molecule
What is matter
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3.- Pure substances:
Pure substances: form only by one type of atom or molecule with definite chemical/physical properties. Two types:• Elements: a single type of atom• Compounds: single type of molecule
What is matter
Which are the differences between elements and compounds?
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3.- Pure substances:
Pure substances: form only by one type of atom or molecule with definite chemical/physical properties. Two types:• Elements: a single type of atom• Compounds: single type of molecule
What is matter
Which are the differences between elements and compounds?
Uranium is the radioactive element that contains the atomic bomb (Little Boy) detonated over the Japanese city of Hiroshima.
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4.- Mixtures:What is matter
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4.- Mixtures
Mixtures: Contains two or more pure substances. Can be physically separated. Two types:• Homogeneous: is the same throughout
• Solutions: small particles (salt water)• Colloids: bigger particles than solutions (clouds, gelatin)
• Heterogeneous: uniformly mixed• Suspensions: particles are much larger
What is matter
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4.- MixturesMixtures: Contains two or more pure substances. Can be physically separated. Two types:• Homogeneous: is the same throughout
• Solutions: small particles (salt water)• Colloids: bigger particles than solutions (clouds, gelatin)
• Heterogeneous: uniformly mixed• Suspensions: particles are much larger
What is matter
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4.- Mixtures
Mixtures: Contains two or more pure substances. Can be physically separated. Two types:• Homogeneous: is the same throughout
• Solutions• Colloids
• Heterogeneous: uniformly mixed• Suspensions
What is matter
Which are the differences between solutions, colloids and suspensions?
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Lunch
4.- Mixtures
Mixtures: Contains two or more pure substances. Can be physically separated. Two types:• Homogeneous: is the same throughout
• Solutions• Colloids
• Heterogeneous: uniformly mixed• Suspensions
What is matter
Which are the differences between solutions, colloids and suspensions?
I like to have lunch with a solution of carbonated water, sweetener and flavorings….. SODA!
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Lunch
5.- Physical Properties
What is matter
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5.- Physical Properties:Physical property: characteristic of a substance that can be
observed or measured without changing the matter’s identity. Ex: color, shape, odor, texture, thermal/electrical conductivity, state, density, solubility, ductility…
What is matter
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5.- Physical Properties:Physical property: characteristic of a substance that can be
observed or measured without changing the matter’s identity. Ex: color, shape, odor, texture, thermal/electrical conductivity, state, density, solubility, ductility…
What is matter
Which are the characteristics of physical properties?
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5.- Physical Properties:Physical property: characteristic of a substance that can be
observed or measured without changing the matter’s identity. Ex: color, shape, odor, texture, thermal/electrical conductivity, state, density, solubility, ductility…
What is matter
Which are the characteristics of physical properties?
I love all physical properties of my girlfriend: the color of ther eyes, the texture of her skin, the shape of her lips…
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5.- Physical Properties: Mass and weight
What is matter
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Mass: amount of matter in an object. Always constant. Units: kg, g, mg. Weight: measure of the gravitational force in an object (N).
What is matter5.- Physical Properties: Mass and weight
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Mass: amount of matter in an object. Always constant. Units: kg, g, mg. Weight: measure of the gravitational force in an object (N).
What is matter
Which are the differences between mass and weight?
5.- Physical Properties: Mass and weight
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Mass: amount of matter in an object. Always constant. Units: kg, g, mg. Weight: measure of the gravitational force in an object (N).
What is matter
Which are the differences between mass and weight?
It remains me to the images of Neil Armstrong walking in the moon in 1969.
"That's one small step for a man,
one giant leap for mankind".
5.- Physical Properties: Mass and weight
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Volume: amount of space occupied by an object (L, mL, m3, cm3). To measure:• Liquid: graduated cylinder (bottom meniscus)• Regular shape: V = length x width x height• Irregular shape: volume of water displaced
What is matter5.- Physical Properties: Volume
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Volume: amount of space occupied by an object (L, mL, m3, cm3). To measure:• Liquid: graduated cylinder (bottom meniscus)• Regular shape: V = length x width x height• Irregular shape: volume of water displaced
What is matter
Which three ways we have to measure volume?
5.- Physical Properties: Volume
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Volume: amount of space occupied by an object (L, mL, m3, cm3). To measure:• Liquid: graduated cylinder (bottom meniscus)• Regular shape: V = length x width x height• Irregular shape: volume of water displaced
What is matter
Which three ways we have to measure volume?
Beaker
5.- Physical Properties: Volume
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What is matter
Which three ways we have to measure volume?
The milk we drink at home comes in a regular shape container and it takes up a volume of one liter.
Volume: amount of space occupied by an object (L, mL, m3, cm3). To measure:• Liquid: graduated cylinder (bottom meniscus)• Regular shape: V = length x width x height• Irregular shape: volume of water displaced
5.- Physical Properties: Mass and weight
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Meniscus: When we put a liquid on a graduated cylinder it forms a curve called MENISCUS
What is matter5.- Physical Properties: Mass and weight
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Volume of Irregular Shaped Solid
What is matter
Archimedes' principle indicates
5.- Physical Properties: Volume
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Volume of Irregular Shaped Solid
What is matter
Archimedes' principle indicatesThe upward buoyant force that is exerted on a body
immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces
5.- Physical Properties: Volume
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Volume of Irregular Shaped Solid
What is matter5.- Physical Properties: Volume
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What is matter5.- Physical Properties: Volume
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What is matter5.- Physical Properties: Density
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What is matter5.- Physical Properties: DensityDensity: is the relationship between mass and volume
(g/mL).
DENSITY
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What is matter5.- Physical Properties: DensityDensity: is the relationship between mass and volume
(g/mL).
Which of the following liquids has more density? And less density?
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What is matter5.- Physical Properties: DensityDensity: is the relationship between mass and volume (g/mL).
Which of the following liquids has more density? And less density?
It remains me the oil spills responsible of environmental disasters.
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Physical and Chemical changes6.- Chemical Properties
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What is matter
Chemical property: describe a substance’s ability to participate in chemical reactions (reactivity, flammability).
6.- Chemical Properties
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What is matter
Chemical property: describe a substance’s ability to participate in chemical reactions (reactivity, flammability).
Which characteristics have all chemical reactions?
6.- Chemical Properties
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What is matter
Chemical property: describe a substance’s ability to participate in chemical reactions (reactivity, flammability).
If you cut an apple, the flesh of apples turn brown due to oxidation.
Which characteristics have all chemical reactions?
6.- Chemical Properties