Hello AnastasiaI propose an experiment, which have to interest her dad as i have heard he likes taking part in experiments.Take her Dad and sit the on a kitchen chair and also place a blind fold approximately his head. Then obtain your ketchup out of the cupboard.(preferably ketchup in a plastic container)Now stand in prior of him and with a firm master on the bottle and also with the lid remove squeeze every the components over his head. If after ~ a pair of minutes you find that the ketchup is flowing down everywhere his body then you will understand that that is a fluid.At this allude of time it would be a great idea to do one more experiment which proves younger civilization are fitter 보다 old ones and run to the bathroom ,locking you yourself in until he has actually cleaned himself off. <
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>P.S not forget to video the experimemt for this reason you can prove your findings