Earth Science

• Can it rain fish?
• Can wind travel faster than the speed of sound?
• Clouds are just water vapor, so why do they move?
• Do I weigh less on the equator than at the North Pole?
• Does the back of a rainbow look the same as its front side?
• Does wasting household water remove it from the water cycle?
• How can there be clouds in winter when it is too cold for water to stay a vapor?
• How do geologists use carbon dating to find the age of rocks?
• How do icebergs lose their salt?
• How do wells get their water from underground rivers?
• How does a cloud fill up with water?
• How does diffraction make a tree's shadow blurry?
• How does trash in the ocean disappear?
• How does water dowsing work?
• How does wind create all the ocean currents?
• If I jump, will the entire earth move a little bit?
• If I were able to dig a hole from the U.S. through the center of the earth, what part of China would I end up in?
• Is a quadruple rainbow possible?
• What causes the water going down a drain to swirl clockwise in the northern hemisphere and counter-clockwise in the southern hemisphere?
• What keeps the continents floating on a sea of molten rock?
• What makes rain drops tear shaped?
• What makes the Sahara the largest desert in the world?
• What makes the soil in tropical rainforests so rich?
• What would happen if you fell into a hole that went through the center of the earth?
• Where do ocean tides get their energy from?
• Where does the atmosphere end? Where is the edge of space?
• Where is the safest place to go when a tornado hits?
• Why can't lightning strike the same place twice?
• Why did so many people believe the world is flat when it is obviously a sphere?
• Why do car tires protect you from lightning strikes?
• Why does a magnetic compass point to the Geographic North Pole?
• Why does ice form on the top of a lake?
• Why does the air only contain water vapor and not other kinds of vapors?
• Why does the coldest time of the year align with the darkest time of the year?
• Why doesn't the outside world appear blue even though so much light comes from the blue sky?
• Why don't the gases in the atmosphere separate out according to mass?
• Why don't the oceans freeze?
• Why is the sky blue?
• Why is the sky not blue as seen from space?
• Why is the sun cold in the winter?