ts give off Oxygen from the Carbon Dioxide takenin.—Put some watercress or duckweed in a vessel of ^Iodine Test for Starch in Leaves.—After the leaf has been picked, it shouldbe put in boiling water for two or three minutes. It should then be bleachedby soaking in alcohol. Put the leaf, when more… … Fig. 25.—Plant giving off Oxygen EXPERIMENTS AND PRACTICAL WORK 57 water; place it in the sunshine, and notice the rise ofbubbles of oxygen. This gas may be collected by put-ting a funnel over the leaves and inserting a test tubewith water (see fig. 25). Test for oxygen by carefullyremoving the…
Nature study -- Juvenile literature · Natural history -- Tropics · Natural history -- Jamaica
Internet Archive · Biodiversity Heritage Library · Public Domain Mark 1.0. Free to use for anything.
