mariahergar14May 2, 20232 minSIMPLE MACHINES: LEVERSSimple machines are mechanical devices that are used to make work easier. Combinations of two or more simple machines working together...
mariahergar14Apr 25, 20231 minCONVERSION FACTORS: How to do it?It´s a common thing that our students struggle where they have to change units using conversion factors. A CONVERSION FACTOR is a...
mariahergar14Apr 11, 20231 minMOTIONLook around you and you find examples of things that are moving. You can probably find countless objects in motion: the hands of the...
mariahergar14Mar 14, 20232 minThe scientific methodA scientific investigation usually starts with an observation—that is, something that catches our attention. How do scientists follow up...