Across
- 2. US Government agency dedicated to expanding space exploration
- 6. A celestial body or an artificial device that revolves around a planet
- 8. ___ month is the period of time it takes the moon to go through its phases
- 9. Energy ___ is the designation given by the EPA that appliances meet energy efficient standards
- 10. Star patterns
- 11. This type of tide is when water levels begin to drop as the current moves away from the shore
- 12. Energy ___ is using less energy to get the same job done
- 15. Celestial ___ is using the sun, moon, stars, and horizon to calculate a vessel's position
- 17. System of millions or even billions of stars
- 19. Isaac ___ invented the first reflecting telescope
- 20. ___ telescope was first invented by Sir Isaac Newton, and uses mirrors to capture images from space
Down
- 1. First to observe mountains and craters on Earth's moon, rings around Saturn, and four of Jupiter's moons
- 3. Neil ___ was the first human to set foot on the moon
- 4. President John F. ___ committed the USA to landing a man on the moon and returning him safely before the end of the 1960's
- 5. ___ gas is released when organic waste, such as kitchen scraps, break down after being put in the trash
- 7. An unmanned spacecraft that travels through space to collect scientific information
- 13. Non-renewable fossil ___ are coal, natural gas, and petroleum
- 14. Human ability to be clever, original, and inventive
- 16. Science that studies stars, planets, moon, etc
- 18. Sometimes called the North Star, located in the sky above 90 degrees latitude