Across
- 2. / Name of first satellite
- 7. / World's sleepiest animal, sleeping 22 hours a day
- 8. / Name for the wire found inside of a light bulb
- 11. / The use of this chemical in felt hats lead to the expression "mad as a hatter"
- 12. / Minutes it takes for the Sun's light to reach the Earth
- 15. / Type of triangle with two equal sides as well as two equal angles
- 16. / Longest bone in the human body
- 17. / Rock type in which fossils are most commonly found
- 19. / Rock type that forms from the cooling of magma
- 21. / Last name of scientist who developed the Three Laws of Motion
- 23. / Nokia originally sold this everyday item
- 24. / Olfactory nerves affect which sense
- 25. / First element on the Periodic Table
- 26. / Name for a group of whales
Down
- 1. / Only bird that can fly backwards
- 3. / Largest internal organ of the human body
- 4. / Only number to have its letters in alphabetical order
- 5. / Sound travels fastest through
- 6. / Hottest planet in the solar system
- 9. / Fastest spinning planet in the solar system
- 10. / The average number of pints of blood a human body contains
- 11. / Term for a meteor once it reaches Earth's surface
- 13. / The only even number that is also a prime number
- 14. / Angle type measuring less than 90'
- 18. / Top layer of the atmosphere
- 20. / lens type found in a magnifying glass
- 22. / This precious stone is a pure form of carbon