Water Bottle Fountain Experiment

Add the funnel to your bottle and carefully pour your water into the bottle.

Water bottle fountain experiment.

When you invert the water bottle then plain water of the bottle starts to flow out from drainage straw due to gravity and air pressure decreases inside the bottle. If you make one why not film it and upload it to youtube you never know. You ll notice that water will rise up through the straw to the same height as the water inside the bottle. Empty the water into a jug so you can boil it again to repeat the experiment or pour it on a plant once it has cooled down.

Science behind this science project. This is due to equal air pressure pushing downwards through the opening of the straw and the bottle. Wear a thick glove or oven mitt to handle the bottle. Once the water drops below the level of the outlet tube in the fountain supply the heron fountain will stop.

Fill a small bowl with cold tap water food colouring is optional but makes a much prettier fountain. This is the hardest part of the activity and is best done by an adult. Now to make the water bottle fountain carefully with a pen poke a hole in the empty bottle just big enough for a straw to poke through and seal with blue tac. We might just decide to feature it here.