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Energy is all about action! Thermal energy is transferred in many ways. The thermal energy of a substance can be determined by adding up all the kinetic and potential energy of its molecules. Convecti ...
Hipervinculo Ciencias de la Tierra y Medioambiente
Do you wonder why the weather changes all the time? Would you like to fly an airplane someday? If you answered “yes” to either of these questions, you need to learn how air molecules move!When we feel ...
Hipervinculo Física
With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science! Have you ever wondered what makes candy bars different, besides ...
Hipervinculo Química
Sometimes the best part of a package is the packing peanuts! They’re the inch-long, puffy pieces that protect fragile things like pictures frames and cups from breaking when they are shipped long dist ...
Hipervinculo Biología
Molecules, as you may already know, are groups of atoms bonded together. Water, or H2O, is a molecule made of two hydrogen atoms and one oxygen atom. The oxygen gas we inhale (O2) is a molecule made o ...
Hipervinculo Biología
The nervous system helps information travel through your body. It consists of the 5 senses, your brain, your spinal column, and the nerves that connect them all together. Suppose your eyes see a baseb ...
Hipervinculo Física
A solar system is a group of planets and other space material orbiting (going around) a star. In our solar system, that star is better known as the Sun and the planets are Mercury, Venus, Earth, Mars, ...
Hipervinculo Física
What causes the seasons to change? The first answer many people give when asked why the Earth gets cold in the winter and warm in the summer is because the Earth’s distance from the sun can vary durin ...
Hipervinculo Biología
Grass might not be the most exotic looking plant in the world, but it is one of the most important. Its pretty green color comes from the chlorophyll inside, which is a pigment that plants use in phot ...
Hipervinculo Biología
We all know that plants can’t walk from place to place, but they do move their stems, leaves, and roots in response to their environment. It just happens too slowly for us to see. These plant movement ...
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