Soluzione del esercizio 1 di Step Up Gold Exam Trainer

Esercizi svolti per il libro Step Up Gold Exam Trainer

Soluzione

  1. A Energy
  2. B It slows down.
  3. A Red
  4. Because it reflects yellow light waves and absorbs all the other colours.
  5. White light (from the Sun) shines through the raindrops (which act like little prisms) and separate the different colours of the spectrum.
  6. Fire, light bulbs, other stars in the sky, lasers, lightnings, etc.