Weather instruments & clouds
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1. What lines on a weather map connect places that have the exact same atmospheric pressure: isobars or contour lines?
What lines on a weather ma… · Weather instruments & clouds 2. What hard pellets of ice form inside strong updrafts of a thunderstorm cloud before falling to the ground: hail (hailstones) or mist?
What hard pellets of ice f… · Weather instruments & clouds 3. Which airport and marina instrument uses a striped fabric cone on a pole to show both wind direction and approximate wind strength: a windsock or a sundial?
Which airport and marina i… · Weather instruments & clouds 4. What scale from 0 (calm) to 12 (hurricane force) is used by sailors and weather observers to estimate wind speed from sea and land conditions: the Beaufort scale or the pH scale?
0 · 12 · Weather instruments & clouds 5. On a sunny afternoon at the coast, land heats up faster than the sea, drawing cool air inland from the water. What is this breeze called: a sea breeze or a land breeze?
On a sunny afternoon at th… · Weather instruments & clouds 6. What tiny water droplets form on cool grass and leaves early in the morning when water vapour condenses on cold surfaces: dew or hail?
What tiny water droplets f… · Weather instruments & clouds 7. What causes a rainbow to appear in the sky when the Sun shines on falling raindrops: sunlight is refracted, reflected and dispersed into colours inside the water droplets, or clouds paint the sky?
What causes a rainbow to a… · Weather instruments & clouds 8. Why do you see the flash of lightning before you hear the clap of thunder from a distant storm: light travels much faster than sound in air, or lightning happens ten minutes earlier?
Why do you see the flash o… · Weather instruments & clouds 9. Which weather instrument has spinning cups that rotate in the breeze to measure wind speed: an anemometer or a thermometer?
Which weather instrument h… · Weather instruments & clouds 10. Why are weather station thermometers housed inside a white, slatted wooden box (a Stevenson screen): to shade the thermometer from direct sunlight while allowing air to circulate freely, or to keep rain inside?
Why are weather station th… · Weather instruments & clouds 11. Where should you place a rain gauge to get an accurate rainfall measurement: in an open area away from trees and building roofs, or directly under a tree?
Where should you place a r… · Weather instruments & clouds 12. What do we call a cloud that forms right at ground level or sea level and reduces visibility: fog (or mist) or hail?
What do we call a cloud th… · Weather instruments & clouds