chapter 14 properties of matter - 2012-03-29آ  solid liquid gas has a definite shape takes on...

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  • 5th Grade Science Chapter 14

    Properties of Matter

  • matter •  Anything that has

    mass and takes up space is matter

    http://www.chem4kids.com/files/matter_intro.html

  • volume •  The amount of space

    an object takes up •  Another word for

    volume is capacity

  • What are two properties of matter?

  • What are two properties of matter?

    •  All matter has mass and takes up space.

  • atom

    •  The smallest particle that can still be identified as the matter it came from is an atom

  • molecule •  A molecule is made

    up to two or more atoms joined together.

    •  Water is a molecule made of two hydrogen atoms and one oxygen atom.

    This is a DNA molecule

  • nucleus •  The dense area in the

    center of an atom. •  Inside the nucleus of

    every atom are smaller particles called protons, electrons, and neutrons.

  • What is an atom and what are its parts?

  • What is an atom and what are its parts?

    An atom is the smallest particle of matter that still behaves like the matter it came from. An atom is made of protons, neutrons, and

    electrons.

    http://www.harcourtschool.com/activity/science_up_close/519/deploy/interface.html

  • element •  Matter that is made of

    only one kind of atom is an element.

    •  Carbon, hydrogen, and oxygen are all elements.

    •  The picture is of the element zinc in hydrogen chloride.

    Zinc + HCL

  • periodic table •  Scientists use the

    periodic table to organize elements.

    •  Each element has its own special place on the table.

    •  The places are decided by the characteristics of the element.

  • How are the elements arranged in the periodic table?

    •  Elements are arranged in order by their atomic number

    •  The atomic number is the number of protons in the nucleus

  • Solid Liquid Gas

  • States of Matter Demonstration

    •  http://www.harcourtschool.com/activity/ states_of_matter/index.html

    •  http://www.chem4kids.com/files/ matter_states.html

    •  http://www.chem4kids.com/files/ matter_changes.html

  • Solid Liquid Gas

    Has definite shape

    Particles are close together and slow moving Has volume http:// www.chem4kids.c om/files/ matter_solid.html

  • Solid Liquid Gas

    Has a definite shape

    Takes on shape of container

    Particles are close together and slow moving

    Particles are farther apart and faster- moving

    Has volume Has volume http:// www.chem4kids.com/ files/matter_liquid.html

  • Solid Liquid Gas

    Has a definite shape

    Takes on shape of container

    Does not have definite shape

    Particles are close together and move slowly

    Particles are farther apart and faster moving

    Particles are farthest apart and move rapidly

    Has volume Has volume Expands to take up whatever space is available http:// www.chem4kids.com/ files/matter_gas.html

  • How are particles arranged in solids, liquids, and gases?

  • How are particles arranged in solids, liquids, and gases?

    •  The particles of solids are close together and slow-moving.

    •  The particles of liquids are farther apart and faster-moving than solids.

    •  The particles of gases are farthest apart and move most rapidly.

  • Draw a model representing how particles are arranged in solids,

    liquids, and gases. •  Check pg. 444 in your text for examples.

  • 5th Grade Science Chapter 14

    Properties of Matter

    Changing States of Matter

  • Physical change-a change in state

    •  The substance is still the same substance

    •  Form changes but chemical makeup doesn’t

  • Ice changes to water—water changes to ice, frozen water is still water

  • Water changes to steam, a gas, when it is heated to its boiling point,water vapor

    condenses to form a liquid

  • Changing States of Matter-Water

    •  Water freezes at 0 degrees Celsius, 32 degrees Fahrenheit

    •  Water boils at 100 degrees Celsius, 212 degrees Fahrenheit

    •  http://www.chem4kids.com/files/ matter_chemphys.html

  • Physical Properties—describe matter

    •  Melting and boiling point are physical properties (the temperature at which a substance melts or boils)

    •  State of matter is also a physical property (solid, liquid, gas)

    •  Density is a physical property •  Density is a measure of how closely packed an

    object’s atoms are •  http://www.harcourtschool.com/activity/hotplate/

    index.html

  • Mixtures and Solutions •  Mixtures •  A combination of two or more substances •  The substances in a mixture aren’t permanently

    combined •  Substances can be separated from the mixture

    and be the same as they were before they were mixed

    •  http://www.chem4kids.com/files/ matter_mixture.html

    •  http://www.chem4kids.com/files/ matter_mixtureex.html

  • Mixtures and Solutions

    •  Solutions •  A mixture in which all parts are mixed

    evenly •  Can be combinations of gases, liquids,

    and even solids •  http://www.harcourtschool.com/activity/

    mixture/mixture.html •  http://www.chem4kids.com/files/

    matter_solution.html

  • Insert video—Matter and Energy- What is It?

    •  http://ippex.pppl.gov/interactive/matter/ molecule.html

  • Other Physical Changes

    •  Breaking •  Crushing •  Cutting •  Bending •  Melting •  Freezing •  Boiling

    •  Can happen naturally •  People can cause

    changes – Water evaporating –  Rain falling and

    causing pufflrd –  People cause change

    •  Recycling paper •  Recycling metal

  • Chemical Properties and Changes

    •  Chemical changes change the chemical nature and properties of substances to form new substances – A match burns – Two substances mix together turn a color

    different from either of them – Toasting marshmallows

    •  Melt it—physical change •  Burn it—chemical change

  • Combustibility-a measure of how easily a substance will burn, or combine rapidly with oxygen

    •  Corrosion of metal—when iron combines with oxygen in the air, rust forms

    •  Gas bubbles—hydrogen peroxide on a cut •  A change in color--fireworks

  • Conservation of Matter

    •  Chemical changes don’t make new matter •  The total mass of the products that form

    equals the total mass of the substances that react.

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