Matter and Properties Chapter 11 5th grade science Elements • __________ - anything that takes up space Matter and has mass. elements • __________ - basic building blocks of matter • Elements combine to form other kinds of Matter ______ • Elements can not be broken down into smaller pieces by either _________ or ________ chemical physical processes. Properties of Matter physical • Each element has its own set of ________ and __________ properties. chemical elements • Properties are used to identify _________ Chemical properties - materials change into other • _____________ materials. Physical properties • ______________ - can be measured without changing the material. Physical Properties • • • • • • • ________ color _______ odor _______ mass ______ volume _______ texture _______ hardness Physical properties can be observed, described and measured using: Rulers – ______ microscopes – ___________ Scales and balances -_________________ thermometers -____________ Metals • More than 75% of the Earths elements are _______ metals properties of : • Metals have Physical ____________ Luster (shine) – ___________ – ___________ bendable Conduct heat energy – _________________ Conduct electricity – _________________ Weight and Mass • ______ weight - measure of the pull on gravity on an object gravity • Weight changes when the pull of _______ changes. mass - the amount of matter in an object • _____ mass weight • The amount of ______ affects the ________ of an object mass weight • ______and _______ are NOT the same Volume milligrams or • Mass is measured in _______, ________, grams ________ kilograms volume • _______ - the amount of space that an objects takes up • Volume is measured in _________ Cubic units • The formula for finding the volume of a box is: – ____________________________________ Volume(V) = Length (L) x Width (W) x Height (H) Density • ______ density - a measure of the amount of matter in a given volume. (D) is Mass (M) • The formula for finding Density _______ ______ Volume (V) or D=M/V. divided by ________ • The unit of measurement for density is ________________ Cubic centimeters (cm³) Physical property of a substance. • Density is a _______ same • Density is the ______ no matter how much of the substance is measured. Buoyancy buoyant floats • An object is __________ if it __________. • _____________ depends on ___________ buoyancy density • If the objects ______ the liquid’s density is _________ Less than density float __________, the object will _______. • Ocean water has dissolved salt in it, therefore More dense ocean water is ___________ than fresh water. • Lesson Checkpoint page 347 (1 and 2) Atoms atom • ______ - the smallest particle of an element that still has the properties of the element. • Atoms are too small to be seen even with a __________. microscope • The properties of an element determine how an element can _______with other elements. combine • _________ - the center of an atom nucleus Parts of an atom • • • • The nucleus has both the _______ neutrons and ______ protons ________ - has no electrical charge neutron ________ - has a positive charge proton ________ electrons - have a negative charge and move around the ________ and _________ neutrons protons join leave • Electrons may ____or ______ electrons or be ________ between ______ shared atoms • Elements are organized in the _____________ Periodic Table Periodic Table row • Elements are arranged in each _____ according to the number of _______ protons larger right • ______atoms are on the ________ side of each row. • The _________ of the table are arranged so columns that the elements of each column have similar Chemical properties _______________ • ___________ - last column on the right Noble Gases Molecules • Every element has a symbol of one, two, or letters three ______ Molecule • ___________ - the smallest particle of a substance that has the properties of that substance. • In some molecules , atoms _____ share electrons – these atoms are _________ together. bonded • ____ is a mixture of several different air molecules of gases – Nitrogen, Oxygen, Carb Compounds • __________ - type of matter made up of compounds combination of elements _________ molecule compound • Every ________ of a _________ has the same elements combination of _________ molecule has the same three • Every water ________ ____ atoms properties • ___________of compounds are different than the properties of the ________ that make elements them up Phases of Matter • Phases of matter include: ________, solid gas plasma ________, ____, and _________ liquid • The phase of matter is due to the _______ motion and __________ arrangement of its particles. Physical property • State of matter = _____________ Solids / Liquids • Solids have a definite __________ and shape ___________ volume • The particles of a solid ________ in place. vibrate • Particles of solids are _______________ Very close together • __________ do not have their own ______ - they liquids shape take on the shape of their container • Particles in liquids can ______ and _______ past move flow each other • Liquids have a definite __________ volume Freezing and Melting • ____________ and ___________ are physical Freezing point Melting point properties • A material _________ at the same Freezes melts temperature that it ______ different • Freezing point is _________ for different materials. • __________ Freezing point does not change for any particular material unless something is added to it. Properties of Freezing and Melting size • Materials change _____ when they change ____________ temperatures • The ______a material gets, the _______ its hotter faster particles move. • When materials are heated they ________ expand particles move further apart. • When materials are cooled, they ________ contract and have less space between the particles Gases Far apart • Particles of gases are __________ • Gases in a container will spread out to ___ fill the container shape • Gases do not have a definite _______ or _______ volume Boiling point • ____________ - temperature at which a liquid becomes a gas - ____________ Physical property • Boiling point for a substance does not change Plasma • No definite shape or volume • Some properties of gases • Particles that make up plasma have electrical Conducts electricity charges – plasma ______________ • Plasmas are found in: Lightning – _________ fire – _____ Fluorescent lights – ______________ Condensation condensation - gas changes to a liquid • __________ • Condensation occurs when gases are _______ cooled • Particles ___________ and begin to _______ Slow down attract droplets each other to form ___________ Mixtures and Solutions mixture • ________ - materials that are placed together but are not bonded to form a ________ compound • Materials in a mixture keep their own _________ properties • Materials in mixtures can be ________ separated because they have different properties. solution • ________ - a mixture in which substances are spread out evenly and will not settle Solute / Solvent solute • _______ - the substance in a solution that __________ dissolves • ________ - the substance in which the solute solvent is being dissolved. • Water = _______________ Universal Solvent solute • When particles of a ________ dissolve, individual particles spread throughout the ________ solvent Solubility solution • Two liquids can make a ________ • A _____ can dissolve in a liquid – example gas dissolved oxygen in the river and creek water that we tested!!! • _________ - a property of a substance that solubility indicates how much of a substance can be solvent dissolved by a ________ at a certain ____________. temperature Saturated / Concentrated / Dilute saturated • _________ - a solution that contains all the solute that can be dissolved without changing temperature the __________ • concentration _________ - solution has so much solute that saturated it is relatively close to being _________ • _________ - solution is far from being dilute ________ saturated