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Stephanie | Studying
Rocks
I have been studying all kinds of rocks and where they are on the
gray
scale. In case you don't know the gray scale is a scale which shows
how much
silica is in each kind of rock. Also, a group from my science class
is building a life size model of the
earth we're not done yet, but I can't wait to see when its finished!
Good luck on your show!
DragonflyTV | Water
cuts rock response
That's
right, Alex,and you can see that happen in show #105 of DFTV. Or,
go to http://pbskids.org/dragonflytv/knowhow/knowhow_cutrock.html
and see it on our website!
Alex, MO | Water
cuts rock
To cut a rock without a saw you might try using water. Pressurize
the water until it will cut through your rock.
Sergio, 10, AZ | Rock
candy
i know how to make smarties candy.do you? if you dont heres how
get 1/2 cup of sugar grind it up intill it turns powdery . if you
want color and fruit flavor just add before you grind.
DragonflyTV | Crystal radios
Many of you might not know that you can make a real radio using
a crystal. Do a Web search for crystal radio kits. There are lots
of clubs and Web sites which tell youhow to make one of these inexpensive
radios. If you build a crystal radio, let us know how you did it.
Sandy, 10, Nevada | Crystal rocks
My sister and I make rock candy. We dissolve sugar in a glass and
tie a string to a pencil. Then we dangle the string in the sugar
water. After a few days or weeks, rock candy forms. It’s really
cool.
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