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Vocabulary words for units 1-4
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atmospheric pressure: a barometer measures __________________
psi: unit of pressure
temperature: a measure of average kinetic energy
matter: has mass and takes up space
elements: there are 116 discovered, actually it is 118
physical properties: these help identify a compound or element
chemical changes: matter burning
filtration: used to separate heterogeneous mixtures
solid: molecules vibrate in place in this state
chemistry: the science of materials and the changes that they undergo
pure substances: always has the same composition
mixtures: composed of two or more types of matter
solutions: another name for a homogeneous solution
ion: a charged atom
compound: two or more elements bonded together
mass: measure of amount of matter
gas: molecules have high energy and take the volume of container
distillation: heat up a mixture and collect the condensed gas
proton: positively charged atomic particle
nucleus: contains protons and neutrons
atomic number: number of protons in a nucleus
atomic mass: sum of neutrons and protons
isotope: different number of neutrons and different atomic mass
scientific notation: a way to write very large or very small numbers
metric: system of units used by most of world, not US
significant figures: numbers recorded in measurements to point of estimation
wavelength: distance between two consecutive wave peaks
frequency: symbolized by the Greek letter nu, v
valence electrons: outermost electrons in an element
excited state: an atom with excess energy
Vocabulary words for units 1-4
Across:1. | always has the same composition | 8. | sum of neutrons and protons | 10. | measure of amount of matter | 12. | a way to write very large or very small numbers | 16. | positively charged atomic particle | 17. | a charged atom | 19. | outermost electrons in an element | 20. | distance between two consecutive wave peaks | 22. | used to separate heterogeneous mixtures | 27. | another name for a homogeneous solution | 28. | an atom with excess energy | 29. | number of protons in a nucleus |
| | Down:2. | molecules vibrate in place in this state | 3. | matter burning | 4. | symbolized by the Greek letter nu, v | 5. | heat up a mixture and collect the condensed gas | 6. | there are 116 discovered, actually it is 118 | 7. | a barometer measures __________________ | 9. | the science of materials and the changes that they undergo | 11. | numbers recorded in measurements to point of estimation | 13. | different number of neutrons and different atomic mass | 14. | composed of two or more types of matter | 15. | two or more elements bonded together | 18. | molecules have high energy and take the volume of container | 21. | a measure of average kinetic energy | 23. | contains protons and neutrons | 24. | has mass and takes up space | 25. | system of units used by most of world, not US | 26. | unit of pressure |
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© 2014
PuzzleFast.com, Noncommercial Use Only
Vocabulary words for units 1-4
Across:1. | always has the same composition | 8. | sum of neutrons and protons | 10. | measure of amount of matter | 12. | a way to write very large or very small numbers | 16. | positively charged atomic particle | 17. | a charged atom | 19. | outermost electrons in an element | 20. | distance between two consecutive wave peaks | 22. | used to separate heterogeneous mixtures | 27. | another name for a homogeneous solution | 28. | an atom with excess energy | 29. | number of protons in a nucleus |
| | Down:2. | molecules vibrate in place in this state | 3. | matter burning | 4. | symbolized by the Greek letter nu, v | 5. | heat up a mixture and collect the condensed gas | 6. | there are 116 discovered, actually it is 118 | 7. | a barometer measures __________________ | 9. | the science of materials and the changes that they undergo | 11. | numbers recorded in measurements to point of estimation | 13. | different number of neutrons and different atomic mass | 14. | composed of two or more types of matter | 15. | two or more elements bonded together | 18. | molecules have high energy and take the volume of container | 21. | a measure of average kinetic energy | 23. | contains protons and neutrons | 24. | has mass and takes up space | 25. | system of units used by most of world, not US | 26. | unit of pressure |
| |
© 2014
PuzzleFast.com, Noncommercial Use Only