#1 слайд
1.Atom a) molecules move from higher concentration to lower concentration 2.Molecula b) an instrument that measures temperature 3. diffusion c) a particle that consists of protons, neutrons and electrons; atom determines a type of substance 4. Temperature d) scale is used in everyday life 5. Thermometer e) a group of atoms that are connected to each other 6. Conduction f) a measure of speed and mass of molecules, a measure of the average kinetic energy of molecules 7. Convection g) heat flow by electromagnetic waves 8. Radiation h)heat flow by movement of a fluid(liquid or gas) 9. Internal energy i) heat flow by the collision of hotter particles to colder particles 10. Celsius scale j) a sum of all kinetic energies of atoms and molecules of substance

1 слайд

#2 слайд
Choose appropriate words to fill in the gaps in below: ________ is the form of energy that ______________from a hot place to a cold one because of the _____________ difference between these two places. Heat moves by conduction, ______________ and radiation. ____________ energy is an alternative name for heat energy.   Word selection: Thermal, temperature, travels, heat, convection

2 слайд

#3 слайд
Keys: 1 . c 2.e 3.a 4. f 5. b 6. i 7. H 8. g 9. j 10.d

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#4 слайд
Keys: 1.heat 2.travels 3.temperature 4.convection 5.thermal

4 слайд