Motion and time

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Across
  1. 3. standard unit of temperature
  2. 4. gives the distance travelled by a vehicle in km
  3. 7. ____________ are crystals that can vibrate very fast and at a precise rate.
  4. 8. quantities quantities like length,or mass, time, temperature,speed etc.that can be measured are called_____________
Down
  1. 1. who discovered pendulum
  2. 2. ____________century = 10 decades
  3. 5. in which state is the largest sundial located
  4. 6. "systeme international d'unites" is written in which language