water pressure (Urdu and English) Punch 3 or 4 small holes, one above the Other, along the side of an… Read More
air pressure experiment (Urdu) thick paper can't fly, air pressure experiment (Urdu) Read More
air pressure gravitational force experiment (Urdu) Read More
HOW HEAT BLOWS UP A BALLOON Stretch a rubber balloon over the neck of an “empty” bottle. Put the… Read More
Heat rising from the radiator turns the paper spiral. (Urdu) Warm air rises, and when it rises it becomes cooler.… Read More
Part 2 Make Your Own Water Rocket Part 2 Make Your Own Water Rocket The water rocket body to be… Read More