1 Pour 1/2 cup of the peroxide into the empty water bottle (Hydrogen peroxide can irritate skin and eyes, so make sure you protect your eyes and skin and let a grown up do the pouring.). 2  Add about 8 drops of food coloring to the bottle (optional).
What is the largest predator? The Largest Predator The Blue Whale. At up to 33.58 meters (110 ft 2 in) in length and 172 metric tons (190 short tons) or more in weight, it is the largest animal ever knownâ¦ to have existed.
Illustration and photograph courtesy Biology Letters. Scientists said this 18-inch (46-centimeter) fossil claw (bottom) belonged to the worldâs largest known bug: an 8.2-foot (2.5-meter), 390-million-year-old sea scorpion called Jaekelopterus rhenaniae, National Geographic News reported in November 2007.