15 items | 5 visits
mariella dorr's List: physical Science
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Mar 14, 12
Mass is how heavy something is without gravity
Another way of describing mass is:
Mass is how much matter an object has
Mass is measured in grams (g) or kilograms (kg)
Mass is measured in grams (g) or kilograms (kg)" -
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Nov 10, 11
"What is the speed of light?
The speed of light is 186,000 miles per second or 299,792,458 meters per second or the time it takes for the light to turn green before the guy behind you starts honking. When people refer to light, they are referring to light in a vacuum, though many vacuums are so full of dirt and dust and cat hair that not much light can travel through it." -
Jan 08, 12
dorrmz
twoboys102003
materials for science and virtual games -
Sep 30, 12
"Tables charting the chemical elements have been around since the 19th century - but this modern version has a short video about each one. We've done all 118 - but our job's not finished. Now we're updating all the videos with new stories, better samples and bigger experiments."
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Sep 30, 12
"Do this survey, and tell me how old you are, and if you could hear it or not. If enough people do it, I can make graphs and stuff (Made via google :D)"
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Sep 30, 12
"The ear is an amazing body part because it enables humans and animals to hear what goes on around them. Hearing is one of the five senses of the body. The ears help the body to pick up sound waves and vibrations. Sound travels in waves through the air, the ground, and various other substances. Sound cannot be seen, but it can be felt by vibrations."
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Jan 06, 13
"Have you ever wondered what color is? In this first installment of a series on light, Colm Kelleher describes the physics behind colors-- why the colors we see are related to the period of motion and the frequency of waves."
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Jan 06, 13
What happens when you jump in a moving elevator? Do you weigh more when you're going up and less when you're going down? Carol Hedden explores the relationship between gravity, weight, and relative motion, using a moving elevator to explain the fascinating physics.
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Jan 31, 13
"Electricity
is a naturally occurring force
that exists all around us.
Humans have been aware of this force for many
centuries. Ancient man believed that electricity was some form of magic because
they did not understand it"
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