Science Facts Set-29

• One light year is the distance travelled by light in one Julian year. It is equal to 6 trillion miles.
• Transition metals such as zinc and silver exhibit variable valency.
• One micron is equal to 0.001 mm.
• A worker bee dies after its stinger is torn out of its body.
• Venus Flytrap is a carnivorous plant that digests animal prey.

• Sounds greater than 120 dB are painful to human ears.
• Glass does not melt at a fixed temperature. When heated, glass softens over a range of temperatures.
• Mercury is the liquid used in thermometer.
• Bears have an excellent sense of smell and they are generally diurnal.
• The surface area of planet Mars is nearly equal to 144,798,500 sq.km.