Is rock a fossil? Fossils are the preserved remains, or traces of remains, of ancient organisms. Fossils are not the remains of the organism itself! They are rocks. Bones, shells, feathers, and leaves can all become fossils. Who is the most famous paleontologist in the world? Jack Horner Do you need a PhD to be […]
What happens when two magnets are placed side by side?
What happens when two magnets are placed side by side? Opposite poles of a magnet attract each other, whereas like poles repel each other. However, when lined up with another north-seeking pole, the two magnets would push away from each other because their forces are not compatible. Is Venus a permanent magnet? Venus is a […]
How do valence electrons affect properties?
How do valence electrons affect properties? The number of electrons in an atom’s outermost valence shell governs its chemical properties. Elements react to form a closed shell, corresponding to the electron configuration s2p6 . This tendency is called the octet rule, because the atoms have eight valence electrons. Do valence electrons determine physical properties? Electrons […]
What forces are responsible for the movement of ocean water in currents What forces and factors influence the direction and nature of ocean currents?
What forces are responsible for the movement of ocean water in currents What forces and factors influence the direction and nature of ocean currents? Primary forces are thermal expansion and contraction of water, the stress of wind blowing over the water, and density differences between water layers. Secondary forces and factors are the Coriolis Effect, […]
Can we land on an asteroid?
Can we land on an asteroid? Landing. Asteroids are not large enough to produce significant gravity, making it difficult to land a spacecraft. This technology allowed for the orientation control and orbit control of the spacecraft that guided it to land on Ryugu. How could we redirect an asteroid? Under consideration for deflecting an asteroid […]
Does Heat travel up or down?
Does Heat travel up or down? “Heat” does not travel up. Heat can travel in all directions. The direction heat travels depends on the specifics of a system not in thermal equilibrium. In contrast, “hot air” on earth’s surface tends to go up. What material reflects the most heat? Note that a metal will only […]
Where are the inner transition elements?
Where are the inner transition elements? The inner transition metals are found in the f-block, usually put at the bottom of the Periodic Table. These elements were sometimes called rare earth metals due to their extremely low natural occurrence. What are transition metals and their properties? The transition metals have the following physical properties in […]
Is gold used in semiconductors?
Is gold used in semiconductors? A good conductor of heat and electricity, it is also the most malleable and ductile of all metals. Gold is used in many aspects of semiconductor manufacturing, particularly in the assembly or packaging processes. Its most widespread use is in wirebonding. Why is gold used in motherboards? Principally used in […]
Where is the epicenter of the earthquake?
Where is the epicenter of the earthquake? epicenter. The epicenter is the point on the earth’s surface vertically above the hypocenter (or focus), point in the crust where a seismic rupture begins. Which point is nearest to the epicenter? The hypocenter is the point within the earth where an earthquake rupture starts. The epicenter is […]