How does moisture get into the air? Heat from the Sun causes water to evaporate from the surface of lakes and oceans. This turns the liquid water into water vapor in the atmosphere. Plants, too, help water get into the atmosphere through a process called transpiration! Water can also get into the atmosphere from snow […]
Which microscope is best used for observing viruses?
Which microscope is best used for observing viruses? Electron microscopy Can viruses be observed using a light microscope? Standard light microscopes allow us to see our cells clearly. However, these microscopes are limited by light itself as they cannot show anything smaller than half the wavelength of visible light – and viruses are much smaller […]
What happens if ocean currents stop?
What happens if ocean currents stop? If it continues to slow, that could have profound consequences for Earth’s inhabitants. Studies suggest it would mean much colder winters and hotter summers in Europe, changing rainfall patterns in the tropics, and warmer water building up along the U.S. coast that can fuel sea level rise and destructive […]
Do forces always act alone?
Which contributions did Galileo make to the solar system?
Which contributions did Galileo make to the solar system? He built a telescope to help him study the sky. Galileo first discovered that the Moon had mountains just like Earth. He also discovered 4 of Jupiter’s moons. Using his telescope, Galileo made many observations of our Solar System. Is there a Roman god for Earth? […]
How much of a deca makes a kilo?
What is expository and example?
What is expository and example? Filters. The definition of expository is something intended to explain or describe. An essay that is intended to explain a series of events is an example of an expository essay. What are the examples of expository writing? Common examples include newspaper articles, how-to manuals, and assembly instructions. Expository writing is […]
What overpowers you without hurting?
What overpowers you without hurting? Brain Teasers A B What overpowers you-without hurting you? Sleep What question can you never truthfully answer “yes” to? “Are you asleep?” I have two U.S. coins totaling 55 cents. One is not a nickel. What are the coins? 50 cent piece and a nickel (one is not a nickel; […]
What is the condition for constructive interference?
What is the condition for constructive interference? The condition for constructive interference is that the phase difference between the two waves should be an even integral multiple of π or 1800. For destructive interference, the phase difference between the two waves is an odd integral multiple of π or 1800 . What are the condition […]