| Term | Definition |
| 24 hours | How long does it take the Earth to rotate once? |
| 4 weeks | How long does it take the Moon to go round the Earth once? |
| midnight | When it is midday in Spain, what time is it in New Zealand? |
| midday | When it is midnight in Spain, what time is it in New Zealand? |
| in the morning | When does the Sun rise? |
| at night | When does the Sun set? |
| the Moon | What is the name of the Earth's satellite? |
| summer | When it is winter in Spain, what season is it in New Zealand? |
| spring | When it is autumn in Spain, what season is it in New Zealand? |
| in summer | When is Spain nearer the sun? |
| in winter | When is Spain further away from the sun? |
| the Earth | Which has higher gravity, the Earth or the Moon? |