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.
(William West, AFP / Getty Images). The giant squid is the world's largest invertebrate, and the largest ever measured was 59 feet long. Giant squids also have the largest eyes of any animal, each one about the size of a human head. The etruscan shrew is the smallest mammal (by weight) in the world. The smallest animal by skull size is the bumblebee bat. The sea wasp jellyfish (pictured) has enough venom to kill 60 adult humans.