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  2. Laws of thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Laws_of_thermodynamics

    For example, when a machine (not a part of the system) lifts a system upwards, some energy is transferred from the machine to the system. The system's energy increases as work is done on the system and in this particular case, the energy increase of the system is manifested as an increase in the system's gravitational potential energy. Work ...

  3. California mission project - Wikipedia

    en.wikipedia.org/wiki/California_mission_project

    The mission project is commonly assigned to California elementary school students in the fourth grade when they are first learning about their state's Spanish missions. Students are assigned one of the 21 Spanish missions in California and have to build a diorama out of common household objects such as popsicle sticks , sugar cubes, papier ...

  4. Molar ionization energies of the elements - Wikipedia

    en.wikipedia.org/wiki/Molar_ionization_energies...

    This is the energy per mole necessary to remove electrons from gaseous atoms or atomic ions. The first molar ionization energy applies to the neutral atoms. The second, third, etc., molar ionization energy applies to the further removal of an electron from a singly, doubly, etc., charged ion.

  5. 4th Grade Teacher Goes Viral for '30 Seconds or Less ... - AOL

    www.aol.com/4th-grade-teacher-goes-viral...

    The Minneapolis-based teacher posted an Instagram Reel recorded during one of her 4th grade lessons in June. In the video, Ringold, 29, explains a simple yet profound way for her students to think ...

  6. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    Electric utilities measure power using electricity meters, which keep a running total of the electric energy delivered to a customer. Unlike fossil fuels , electricity is a low entropy form of energy and can be converted into motion or many other forms of energy with high efficiency.

  7. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.