FINAL EXAM STUDY GUIDE · TERMS 1 & 2
Find your question.
Explore the science.
All 25 questions from Units 1–3, in the same order as your study guide. Choose a question, run its models, and use your observations to support your answer.
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One ZIP file with MP4 videos labeled Q01–Q25, including captions and sound. Unzip after downloading.
Videos show preset trials. Use the interactive models to change settings.
These numbers match the study guide. Keep your guide beside you. Questions with several concepts include model tabs—explore each one.
Properties of Matter
Matter, atoms & molecules
Describe the relationship between matter, atoms, and molecules.
Interactive model · Open questionAttraction, volume & mass
Define attractive forces, volume, and mass.
2 models · Open questionShape, volume & particle attraction
Compare the shape, volume, and attractive forces of solids, liquids, and gases.
Interactive model · Open questionCrystal lattice
Draw and describe the structure of a crystal lattice.
Interactive model · Open questionPure substances
Describe what a pure substance is and give an example.
Interactive model · Open questionPhysical properties
Describe what a physical property of matter is and how it can be used.
3 models · Open questionFour properties of matter
Define solubility, density, melting point, and boiling point.
4 models · Open questionWhy objects float or sink
Explain why an object will sink or float in water.
Interactive model · Open questionPhysical changes
Describe what happens to matter (molecules) during a physical change.
2 models · Open questionEnergy & Matter
Heat & energy vocabulary
Define conduction, convection, radiation, thermal energy, kinetic energy, and temperature.
4 models · Open questionDirection of heat flow
Explain how heat flows between two objects of different temperatures.
Interactive model · Open questionThree ways to transfer energy
Explain the similarities and differences between conduction, convection, and radiation.
3 models · Open questionMotion, temperature & energy
Explain the relationship between particle motion, temperature, kinetic energy, and thermal energy.
Interactive model · Open questionParticle motion in three states
Describe the particle motion of a solid, a liquid, and a gas.
Interactive model · Open questionDensity across states
Rank solid, liquid, and gas from least dense to most dense.
Interactive model · Open questionMass & thermal energy
Explain the relationship between mass, kinetic energy, and thermal energy.
Interactive model · Open questionWood, metal & plastic
Describe how the type of matter (wood, metal, plastic) affects thermal-energy transfer. Give an example.
Interactive model · Open questionWhat causes pressure?
Define pressure.
Interactive model · Open questionVolume & gas pressure
Describe the relationship between volume and changes in pressure.
Interactive model · Open questionTemperature & gas pressure
Describe the relationship between temperature and changes in pressure.
Interactive model · Open questionChemical Energy & Biochemistry
Chemical-reaction vocabulary
Define chemical reaction, endothermic, exothermic, reactant, product, and precipitate.
3 models · Open questionEvidence of a chemical reaction
What are the signs of a chemical reaction?
4 models · Open questionMolecules during reactions
Describe what happens to molecules during a chemical reaction.
Interactive model · Open questionConservation of mass
Define the law of conservation of mass.
2 models · Open questionPhotosynthesis & respiration
Explain how photosynthesis and cellular respiration support the law of conservation of mass.
2 models · Open question