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8th Grade

Week 5 Q2: Chemical Reactions and Equations

  • What is a chemical reaction?
  • What are the signs that a chemical reaction has occurred?
  • What is the Law of Conservation of Mass?
  • How do scientists represent chemical reactions?
  • How are chemical equations written to show that mass is conserved?




Week 4 Q2: Chemical Reactions:

  • Lesson Questions
    • How do chemical changes differ from physical changes?
    • What happens to the atoms, mass of the reactants, and energy in a chemical reaction?
    • What factors affect the rate of a chemical reaction?
    • What kinds of changes occur during chemical reactions, and how do these changes affect the atoms and masses of the reactants and products?
  • Key Vocabulary

expandbeakermatterreactnitrogen cyclecondensehydroxide ionchemical changeopen loop systemsproductdigestion oxidationelectron shell,reactantaccelerationpure substanceendothermiccorrosiveenergy (physical)interactchemicalchemical reactionchemical testbatteryfuel,substanceactionnitrogen cyclephysical changenoble gasalkalinedetection,atomphotosynthesis oxygendissociatedissolveexothermicheat,temperature (general)chemical bonddigestive systemchlorine




Week 3 Q2: Test Review - Matter



Week 2 Q2: Molecules


  • Lesson Questions

    • What are molecules, and how are the properties of molecules different than the atoms that they come from?
    • How can you predict when atoms will combine to form a molecule?
    • What are the characteristics of ionic compounds?
    • How are elements, compounds, and molecules all related to one another?
    • How do particles combine to form the variety of matter one observes?
  •  
  • Key Vocabulary

crystalreactcondensehydroxide ionchemical change,negative chargeelectron shellsuspensionconductpure substancediffusionacidboilchemicalpHsubstancebase,positive chargemoleculenucleusvalence electronatom,compoundstructuresolutiondissociateconvection (heat),chlorine



Week 1 Q2: Compounds

Lesson Essential Questions:

  • What is a compound?
  • How are compounds named?
  • How are compounds made from carbon unique?

Key Vocabulary:

atomelementmoleculecompound, chemical bond, organic compound, monomer, polymer, carbon



Week 8 Q1: Atomic Structure: 

  • Lesson Questions
    • What is the relationship between an atom and an element?
    • How are protons, neutrons, and electrons arranged to form an atom?
    • How can electrons be gained or lost from an atom?
  • Can You Explain?
    • How are the atoms of one element different from the atoms of another? Use examples in your explanation.
  • Key Vocabulary

nitrogen, crystal, radioactivity, atomic number, chemical change, radioactive dating, half-life, model, atomic mass, mass, element, plasma, electron shell, periodic table of elements, period, acceleration, pure substance, ionic bond, energy (physical), proton, covalent bond, pH, neutron, substance, structure, molecule, noble gas, specific gravity, ion, atom, compound, matter, carbon , metal, balance, hydrogen, chemical, particle, chlorine




Week 7 Q1: Periodic Table

  • Lesson Questions
    • Why is the periodic table such a useful tool for chemists?
    • How do scientists classify elements on the periodic table?
  • Can You Explain?
    • How does the periodic table make it easier for scientists to work with and to study elements?
  • Key Vocabulary

nitrogen, radioactivity, atomic number, system, half-life, Mendeleev, atomic mass, element, electron shell, hydrogen, pure substance, period, halogens, structure, noble gas, specific gravity, atom, law, metal, periodic table of elements, chlorine, metalloids



Week 6 Q1: Combining and Separating\

  • Lesson Questions

    • How do mixtures, solutions, and pure substances differ?
    • How are solutions, suspensions, and colloids similar and different?
    • How do the substances of mixtures affect the process of separation?
    • How does matter form different types of mixtures? 
  • Key Vocabulary

pureheterogeneoussolubilityvolume (matter)chemical testemulsion,chemical changecolloidattractfilterpure substancerivermixturechemical,solubilitychemical reactionsubstanceactioncombinecompoundsolute,mattersolutionsolvent



Week 5 Q1: Earth's Water's TEST review

  • How can physical and chemical factors, such as temperature, dissolved oxygen, pH, salinity, turbidity and nitrates, be used to determine the health of an aquatic ecosystem?
  • What can bioindicators, such as the number and types of macroinvertebrates, reveal about the health of an aquatic ecosystem?
  • What is a watershed and what are the major watersheds in your state?
  • What are the components and characteristics of a river system?
  • Why are wetlands important?
  • Why are estuaries important?
  • How can the water quality in a watershed be affected by human activity?
  • How do the major saltwater biomes compare to each other?
  • How do the major freshwater biomes compare to each other?
  • How are aquatic organisms adapted to their environments?
  • What are ocean layers, and how are they similar to and different from each other?
  • How do scientists use technology to explore and study oceans?
  • How do we use the ocean as a resource?
  • What are the physical and chemical characteristics of ocean water, and why does it have these characteristics?
  • How do the environmental conditions of different ocean layers support life?
  • How do oceanographers gather data and evidence to support our understanding of Earth’s oceans?



Week 4 Q1: Oceans/Oceanography

  • Lesson Questions
    • What are ocean layers, and how are they similar to and different from each other?
    • How do scientists use technology to explore and study oceans?
    • How do we use the ocean as a resource?
    • What are the physical and chemical characteristics of ocean water, and why does it have these characteristics?
    • How do the environmental conditions of different ocean layers support life?
    • How do oceanographers gather data and evidence to support our understanding of Earth’s oceans?
  • Key Vocabulary

salt waterpressuredensitysalinityoceanhomogeneousestuaryocean currentplanktonmarineocean basinwater, photosynthesis salinityoceanographymineralsnutrients, bacteria



Week 3 Q1: Aquatic Biomes

  • Lesson Questions
    • How do the major saltwater biomes compare to each other?
    • How do the major freshwater biomes compare to each other?
    • How are aquatic organisms adapted to their environments?
  • Key Vocabulary

salt waterecosystemherbivoretropicalcarbon cyclebiospherefreshwater,food webplanktonoceanestuarywarm-bloodedamoebaocean current,exoskeletonfood chainsystemhydrosphereenvironmentanatomy,biodiversityswampbirdcharacteristicfishanimalflowering plantplant,preservedependdeltaAntarcticcoral reef biotechnologybiomefeature,arthropodrainaquaticmarineinsectwaterspeciesamphibian,microorganismbiological diversitywetlandflowermigrationprotistrain forestparasitetidesalgaestreamcommunityArcticbacteria



Week 2 Q1 - Wetland, watershed, estuaries

Lesson Questions

  • What is a watershed and what are the major watersheds in your state?
  • What are the components and characteristics of a river system?
  • Why are wetlands important?
  • Why are estuaries important?
  • How can the water quality in a watershed be affected by human activity?

Key Vocabulary

salt watercoastal plainmeanderfreshwaterfloodplain,estuarymangroveerosionwater cyclehabitatdischarge (stream)landformelevationbirdriverpollutantsediment,geographynutrientsprecipitationenvironmentclimate,biomepollutionstreamaquaticnatural resourceswater,biological diversitywetlanddeltaalgaegroundwater


Week 1 Q1 - Water Quality:
Lesson Questions:

  • How can physical and chemical factors, such as temperature, dissolved oxygenpHsalinityturbidity and nitrates, be used to determine the health of an aquatic ecosystem?
  • What can bioindicators, such as the number and types of macroinvertebrates, reveal about the health of an aquatic ecosystem?



Key Vocabulary- Water Quality

algae, aquatic, bacteria, environment, erosion, estuary, freshwater, groundwater, habitat, natural resources, ocean, rain, salt water, water, water cycle