Across
- 5. the first man-made satellite
- 6. first satellite launched by Thailand in space
- 9. the first man to orbit the space
- 11. invented the first microscope in 1609
- 12. propelled by ejecting gases from combustion of fuel
Down
- 1. an instrument used to observe far away objects
- 2. an English scientist who developed the telescope
- 3. German-Ducth eyeglass maker credited for the invention of telescope
- 4. satellite whose function is to discover resources in the earth
- 7. the first animal to go to space
- 8. two main components of telescope, objective lens and ____.
- 10. the first satellite to successfully carry humans to the moon