electron: A negatively charged particle, often discovered orbiting the outer areas of an atom; additionally, the provider of electrical energy inside solids.
material: Any versatile materials that’s woven, knitted or may be fused right into a sheet by warmth.
fossil: Any preserved stays or traces of historic life. There are lots of several types of fossils: The bones and different physique components of dinosaurs are referred to as “physique fossils.” Issues like footprints are referred to as “hint fossils.” Even specimens of dinosaur poop are fossils. The method of forming fossils known as fossilization.
iron: A metallic component that’s frequent inside minerals in Earth’s crust and in its sizzling core. This metallic is also present in cosmic mud and in lots of meteorites.
lead: A poisonous heavy metallic (abbreviated as Pb) that within the physique strikes to the place calcium desires to go (equivalent to bones and tooth). The metallic is especially poisonous to the mind. In a baby’s growing mind, it could actually completely impair IQ, even at comparatively low ranges.
magma: The molten rock that resides beneath Earth’s crust. When it erupts from a volcano, this materials is known as lava.
metallic: One thing that conducts electrical energy properly, tends to be shiny (reflective) and is malleable (that means it may be reshaped with warmth and never an excessive amount of pressure or strain).
muon: A kind of unstable subatomic particle. Most on Earth fashioned when cosmic rays work together with atoms within the ambiance. As leptons, muons belong to the identical class of particles because the electron. Their mass, nevertheless, is roughly 200 instances larger. Muons are typically short-lived. It tends to outlive solely 2.2 microseconds earlier than it decaying (reworking) into an electron and two varieties of neutrinos.
neutron: A subatomic particle carrying no electrical cost that is likely one of the fundamental items of matter. Neutrons belong to the household of particles often called hadrons.
particle: A minute quantity of one thing.
photon: A particle representing the smallest doable quantity of sunshine or different kind of electromagnetic radiation.
pyramid: A monumental construction with a sq. or triangular base and sloping sides that meet in some extent on the high. The most effective recognized are these produced from stone as royal tombs in historic Egypt.
scanner: A machine that runs some form of gentle (which incorporates something from X-rays to infrared power) over an individual or object to get a succession of photographs. When a pc brings these photographs collectively, they’ll present a movement image of one thing or can supply a three-dimensional view by means of the goal. Such techniques are sometimes used to see contained in the human physique or stable objects with out breaching their floor.
tissue: Product of cells, it’s any of the distinct varieties of supplies that make up animals, crops or fungi. Cells inside a tissue work as a unit to carry out a selected perform in dwelling organisms. Completely different organs of the human physique, as an example, usually are produced from many several types of tissues.
volcano: A spot on Earth’s crust that opens, permitting magma and gases to spew out from underground reservoirs of molten materials. The magma rises by means of a system of pipes or channels, generally spending time in chambers the place it bubbles with gasoline and undergoes chemical transformations. This plumbing system can develop into extra complicated over time. This may end up in a change, over time, to the chemical composition of the lava as properly. The floor round a volcano’s opening can develop right into a mound or cone form as successive eruptions ship extra lava onto the floor, the place it cools into exhausting rock.
X-ray: A kind of radiation analogous to gamma rays, however having considerably decrease power.
