Additionally, Kindergarten kids or even kids in Pre-K will also easily learn from this fun worksheet on Fossils. Children can have fun while learning fun facts on Fossils with this activity sheet while playing the fun FREE puzzle game.
Pressure half time is the time required for the peak pressure gradient to reduce by half (1/2) which will correspond to a decrease in peak velocity by a factor of square root of two (21/2). Pressure half time of a regurgitant jet depends on the severity of the regurgitation and the compliance of the receiving chamber.
Class practical. In this activity the rate of water uptake, due to transpiration, by a shoot from a woody plant, is measured by timing how long a bubble takes to move a set distance, in the capillary tube of an h-shaped potometer. Loosen the screw on the boss and lower the potometer, so that the capillary tube just goes back into the water in the beaker. Retighten the screw on the boss. g There are two ways of taking measurements: 1  Start the stop clock when the bubble of air touches the first marked line.