Across
- 1. we use this to find North, South, East, and West
- 3. invented by Karl von Drais and has 2 wheels
- 4. a round thing found on cars and bikes
- 8. invented by Alexander Graham Bell
- 10. the Ancient Romans used this material for building
- 12. this keeps our food cold
Down
- 2. invented by accident on a cold night
- 5. a type of energy used by phones, light bulbs, and many other things
- 6. we fly on one of these to visit other countries
- 7. invented by John Logie Baird
- 9. a machine that can calculate sums
- 11. invented by Karl Benz and has 4 wheels