Examples of physical changes
By: Mishra Planeswalker
A physical change is a modification that is induced in a substance which does not change the substance’s chemical makeup. Thus, the term physical change is in direct contrast with the term chemical change. We see the effects of physical changes every day, whether...
By: Mishra Planeswalker
It is the nature of physicists to be able to see relationships between natural phenomena. This is most clearly and simply done through a graphical analysis, where one quantity that changes will be plotted on the x-axis of a graph, and the y-axis will display...
By: Elizabeth M Young
It is all in the "trans" when it comes to comparing transparency with translucence. Both terms describe objects that allow light waves to pass through, but the difference is vast, when it comes to being able to look at the substance or object and to...
By: Nan C Avery
The engines roar, the vibration in the passenger compartment can be felt. We are depending on this big mass of metal to take us to our destination safely. What goes into making our journey safe? A jet engine takes about two years to build. Its...
By: Helena Whyte
The most significant symbols used in the Laboratory are warning labels. Storage closets and chemical containers display the NFPA (National Fire Protection Association) fire diamond. The four quadrants of the fire diamond are color coded. Red in the top quadrant denotes the fire hazard, blue...
Why carbon is the basis for so many compounds
By: Megan Furner
Carbon: many people know what it is, but only a few know what it does. Organic chemists are most familiar with the element and the magnitude of its usefulness. However, one does not have to have a Ph.D in Organic Chemistry to gain a...
Miniature chemistry: Lab on a chip
By: Madhusoodanan K.P
The advent of nanotechnology has opened up the lab-on- a-chip technology in many fields such as chemistry, physics, electronics, biomedical engineering, electronics, biology, chemical engineering and so on. Having utility and practical application in a wide range of areas varying from space exploration to pathology...
By: N. David
There are two common misconceptions that many children, and some parents, have about science. First, they think it's boring, and second, they think it's just for nerds or "brainy kids". In fact, all children are curious about their world, and there are many terrific children's...
Are there more than three States of Matter
By: Charles Ray
Traditionally, we’re taught that there are only three states, or phases of matter; solid, liquid and gas. The form that matter takes is a function in differences in the motions and forces and molecules that go into its makeup. In solids, the molecules are...
By: N. David
Aerogels are not an exotic type of gel. An aerogel is a solid, highly porous material, with a number of very special properties. The high volume of pores in an aerogel give it very low density and very light weight, as the material is mostly...

 

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