| A | B |
|---|
| A proposed tidal power station | could provide 7% of England's energy needs |
| Technology is a consequence | of science and engineering |
| Telescope in orbit | Hubble |
| Radio telescopes operate | on radio frequencies |
| Reflecting telescopes were first | conceived by Isaac Newton |
| Refracting telescopes gather light | and direct it to the eyepiece |
| Colour temperates are | expressed in Kelvins |
| Thermal pollution in lakes is a | temp. change caused by humans |
