explaining matter: chemical change - part 6 of 18. illustrates that a chemical change takes place when atoms from the molecules of two or more materials join to form molecules of entirely different materials. examples of changes include burning, digestion - potassium stock-videos und b-roll-filmmaterial00:29
cutting potassium metal with a scalpel. the shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide - potassium stock-videos und b-roll-filmmaterial00:25
slo-mo-landwirt dünger über ein feld zu verbreiten - potassium stock-videos und b-roll-filmmaterial00:21
cutting potassium metal with a scalpel. the shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide - potassium stock-videos und b-roll-filmmaterial00:34
cutting potassium metal with a scalpel. the shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide - potassium stock-videos und b-roll-filmmaterial00:55
kalibergbauanlage in der nähe der salinen von bonneville - potassium stock-videos und b-roll-filmmaterial00:22
1983 montage volcanoes erupting and clouds moving while discussing radiation / iceland - potassium stock-videos und b-roll-filmmaterial00:19
healthy eating: small pieces of strawberry falling in yogurt of the same flavour, slow motion - potassium stock-videos und b-roll-filmmaterial00:05
in a clandestine outpost in nicaragua a man sporting sunglasses and a blue face protector hand mixes mortar bombs: a concoction of potassium chlorate... - potassium stock-videos und b-roll-filmmaterial02:55
healthy food: blueberry fruits falling over a heap of other blueberries - potassium stock-videos und b-roll-filmmaterial00:21
healthy food: blueberry fruits falling over a heap of other blueberries - potassium stock-videos und b-roll-filmmaterial00:05
healthy eating: blueberries falling in natural yogurt - potassium stock-videos und b-roll-filmmaterial00:08
healthy eating: blueberries falling in natural yogurt - potassium stock-videos und b-roll-filmmaterial00:05
close-up of blueberries falling into probiotic natural yogurt, slow motion - potassium stock-videos und b-roll-filmmaterial00:05
slo-mo-senior bauer schöpfen dünger mit einer hand - potassium stock-videos und b-roll-filmmaterial00:16
slo-mo-senior frau dünger über ein feld zu verbreiten - potassium stock-videos und b-roll-filmmaterial00:29
gruppe von sehr gesunde ernährung, b-roll-dolly-shooting - potassium stock-videos und b-roll-filmmaterial00:09
landwirt einsatz kalziumkarbid beschleunigen ananas blütenpflanzen - potassium stock-videos und b-roll-filmmaterial00:10
landwirt einsatz kalziumkarbid beschleunigen ananas blütenpflanzen - potassium stock-videos und b-roll-filmmaterial00:22
landwirt einsatz kalziumkarbid beschleunigen ananas blütenpflanzen - potassium stock-videos und b-roll-filmmaterial00:19
landwirt einsatz kalziumkarbid beschleunigen ananas blütenpflanzen - potassium stock-videos und b-roll-filmmaterial00:16
landwirt einsatz kalziumkarbid beschleunigen ananas blütenpflanzen - potassium stock-videos und b-roll-filmmaterial00:32
landwirt einsatz kalziumkarbid beschleunigen ananas blütenpflanzen - potassium stock-videos und b-roll-filmmaterial00:29