👉 Watch the video of Sarah’s science experiment at Helotes Elementary School here! Hello parents, teachers and students! Be sure to check out GMSA@9 on Wednesdays when Meteorologist Sarah Spivey does ...
Strange, sinuous gullies etched into the dunes of Mars are finally giving up their secrets. These gouges, new experiments reveal, are carved by the explosive sublimation of dry ice, burrowing down the ...
In a previous communication 1, experiments were described on the sublimation of water vapour in a Wilson chamber. It was found that in clean air sublimation commences only at temperatures below – ...
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