Across
- 4. - A bolt is this is 5x hotter than the surface of the sun
- 6. This type of twin looks the same, apart from their fingerprints!
- 8. - These fruits are radioactive
- 9. - We travel 2.5 million km around this each day
Down
- 1. This gas rains on Titan (Saturn's largest moon)
- 2. - These kill between 10 and 100000 birds a year to help generate electricity
- 3. - These slimy creatures can have 1000 teeth!
- 5. This long-necked animal is 30 times more likely to be hit by lightning than humans.
- 7. - These small insects do not have lungs.
- 9. What is the best subject at school?