Quick Answer. HowStuffWorks explains that food poisoning often occurs when a person eats spoiled food. Common symptoms of food poisoning are stomach pain, diarrhea, nausea, vomiting and cramping.
Confusion continues over coolant colors for cars. Of course, there is still the good old green stuff, but there is also orange, yellow (gold and amber), red, pink, blue and, if you mix the wrong things together, brown. Despite the rainbow of colors, all antifreeze starts out colorless.
That cool, refreshing glass of water on a hot day may appear colorless, but water is actually a faint blue color. The blue color becomes visible when we look down into, or through, a large volume of water. We see water in a variety of ways. It may be colored by particles, the presence of bacteria, or by reflecting the world above its surface. Ice and snow may reveal a vivid internal blue. Water itself has an intrinsic blue color that is a result of its molecular structure and its behavior.