Across
- 2. a layer in the earth's stratosphere at an altitude of about 6.2 miles (10 km), which absorbs most of the ultraviolet radiation reaching the earth from the sun.
- 3. increase to the size of an object in response to the temperature of the object
- 6. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
- 8. measure of kinetic energy of particles of an object
- 9. 78% of the atmospheric gas
- 10. form of energy arising from the random motion of the molecules of bodies, which may be transferred by conduction, convection, or radiation.
Down
- 1. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
- 3. the lowest region of the atmosphere, extending from the earth's surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.
- 4. 21% of the atmospheric gas
- 5. the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material
- 7. the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.