|
article title introduction -- why science is good see plant drink -- colored water shows that water travels though plants see your pulse -- a simple device that moves when your heart beats color tired -- the longer you look at a color the less you see it centrifuge -- pushes water against the bottom of an upside down bucket circle's center -- a way to find the center of a circle orbit sim -- a weight swinging in a circle is much like an orbiting satellite after image -- what you see is affected by what you looked at before light/heavy water -- warm water is lighter in weight trust -- a heavy weight will stop before it runs into you invisible gas -- make carbon dioxide and do something with it different sound -- hear how sound is different when it travels through a string warm frost -- a substance that looks like frost finger print -- how to make a fingerprint cricket pet -- keeping a cricket for a pet straw/air demo -- a straw is used to show that the air around us is pressurized terrarium -- it is like a very small greenhouse float needle -- how and why a needle with float on water flow lift -- flowing air with hold up a piece paper juice indicator -- the color of grape juice shows whether something is acid or not spider pet -- keep a spider for a pet lens projector -- the letters on a light bulb are seen on the ceiling drying flowers -- how to make dried flowers copper plate -- put a layer of copper on a key float egg -- an egg sinks in water, adding salt makes it float cocoon -- with some luck, you may see a moth come out of a cocoon echo distance -- why only far away objects make echoes water shrinks -- as water cools it shrinks keep a web -- a way to bring home a spider web lightning distance -- know how far away ligthning is rope wave -- swing a rope to make it move much like a wave on water pepper away -- pepper floating on water moves quickly away Mobius strip -- a peculiarly shaped strip of paper fold limit -- you can fold a paper only so many times fish in bowl -- two pictures appear as one points together -- two eyes make judging distance easier shelless egg -- dissolve the shell of an egg message -- seeing the magic |