Science Mag

INTERESTING FACTS ABOUT SPACE 1. Space does not begin at a specific altitude above the Earth, but the Kármán line at 100 km is a commonly used definition. 2. The temperature in the void of space is about −270.45 °C. 3. Space is a hard vacuum, meaning it is a void containing very little matter. 4. There is no sound in space because molecules are too far apart to transmit sound. 5. The space between galaxies is not completely empty but has an average of one atom per cubic meter. 6. There are an estimated 100-400 billion stars in our galaxy, the Milky Way. 7. The universe is observed to be 13.8 billion years old and has been expanding since its formation in the Big Bang. 8. In the observable universe there are an estimated 2 trillion (2,000,000,000,000) galaxies. 9. The International Space Station is the largest ever crewed object in space. 10.Spacecraft have visited all the known planets in our solar system. Chevonne V. Fernandez Sr 1B Nevin Sr 2C

CROSSWORD PUZZLE Falak Shaikh Sr 3 SCIENCE RIDDLES 1. What did the scientist say when he found 2 atoms of helium? 2. What is black when you buy it, red when you use it and gray when you throw it away? 3. What can eat a lot of iron without getting sick? 4. What is the center of gravity? 5. Did you hear the one about a chemist who was reading a book about helium? 6. I am a God; a planet and I can measure heat. What am I? 7. I'm sometimes full, but I never overflow. What Am I? 8. What kind of chemical element hates to be a follower? 9. What two periodic elements, when combined, heal? 10. What number do Nickel and Neon make when combined? Niharika Sr 4B

Vivena DO YOU KNOW ????? Rose Sr 1B 1. The Earth is a giant magnet. 2. Venus is the only planet to spin clockwise. 3. Stomach acid is strong enough to dissolve stainless steel. 4. Fleas can jump 130 times higher than their height. In human terms, that is equivalent to a 6-foot person jumping 780 feet into the air. 5. There are no poisonous snakes in Maine. 6. The blue whale can produce sounds up to 188 decibels, which is the loudest sound produced by a living animal and has been detected as far away as 530 miles. 7. The largest man-made lake in the U.S. is Lake Mead, created by the Hoover Dam. 8. The Stegosaurus dinosaur measured up to 30 feet long but had a brain the size of a walnut. 9. The human eye blinks an average of 4.2 million times a year. 10.Armadillos, opossum and sloths spend about 80 percent of their lives sleeping. 11.The hottest planet in the solar system is Venus, with an estimated surface temperature of 864 degrees Fahrenheit. 12.The ears of a cricket are located on the front legs, just below the knee. 13.Sound travels about four times faster in water than in the air. 14.House flies have a lifespan of two weeks. 15.Chimps are the only animals that can recognize themselves in a mirror. 16.Starfishes don’t have brains. 17.The average person falls asleep in seven minutes. 18.Shrimp’s hearts are in their heads. 19.Cats have more than 100 vocal sounds, while dogs only have about 10. 20.Porcupines float in water. 21.An ostrich’s eye is bigger that its brain. 22.An iguana can stay underwater for 28 minutes. 23.The common goldfish is the only animal that can see both infrared and ultraviolet light. 24.Ants cannot chew their food. They move their jaws sideways, like scissors, to extract the juices from the food. 25.Hummingbirds are the only animals able to fly backward. 26.A cat has 32 muscles in each ear. 27.Snakes are true carnivores because they eat only other animals and do not eat any type of vegetation. ANSWERS PUZZLE RIDDLES 1. Avogadro 11. Laika 1. He He 2. Omnivore 12. Hippocrates 2. Charcol 3. Seismic 13. Inertia 3. Rust 4. Pathfinder 14. Galileo 4. V 5. Gagarin 15. Nitrogen 5. He couldn’t put it down 6. Aldrin 16. Amino 6. Mercury 7. Ions 17. Lignin 7. Moon 8. Cancer 18. Pluto 8. Lead 9. Amphibian 19. Mendeleev 9. Helium and Aluminum (He + Al) 10. Recoil 20. Concave 10. Nine (Ni+Ne) 21. Neurone 22. Xylem 23. Ecology