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A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.
"Imperial Porphyry" from the Red Sea Mountains of Egypt A waterworn cobble of porphyry Rhyolite porphyry from Colorado; scale bar in lower left is 1 cm (0.39 in). Porphyry (/ ˈ p ɔːr f ə r i / POR-fə-ree) is any of various granites or igneous rocks with coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate-rich, generally aphanitic matrix or groundmass.
Occasionally some individual crystals (phenocrysts) are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic texture is known as a granite porphyry. Granitoid is a general, descriptive field term for lighter-colored, coarse-grained igneous rocks.
In geology, texture or rock microstructure [1] refers to the relationship between the materials of which a rock is composed. [2] The broadest textural classes are crystalline (in which the components are intergrown and interlocking crystals), fragmental (in which there is an accumulation of fragments by some physical process), aphanitic (in which crystals are not visible to the unaided eye ...
A science project is an educational activity for students involving experiments or construction of models in one of the science disciplines. Students may present their science project at a science fair, so they may also call it a science fair project. Science projects may be classified into four main types.
The International Student Science Fair (ISSF) is an annual event providing a platform for international interaction to take place in science education. The fair brings together high school students, teachers and school leaders to share and develop the learning and teaching of science research and education. [1] The ISSF is the major event of ...
The Wake County Sheriff’s Department tests games each year to make sure they are “fair” for players. But “fair” doesn’t mean “easy,” so we’re here with advice.
In addition to Harry Potter and The Hunger Games, Scholastic is known for its school book clubs and book fairs, classroom magazines such as Scholastic News and Science World, and popular book series: Clifford the Big Red Dog, The Magic School Bus, Goosebumps, Horrible Histories, Captain Underpants, Animorphs, The Baby-Sitters Club, and I Spy ...