balloon drop experiment

Take hydrated copper (II) sulphate crystals in a test-tube and heat. On heating, the blue crystals in the test tube start turning white. Water vapours are released that condense on the cooler part of the test tube. Collect the water drops in a dish. The crystalline copper sulphate turns ..

To study the action of pepsin on proteins - Boil egg white in distilled water till a cloudy suspension is obtained. Cool it and divide the mixture into five equal portions in separate test-tubes. Label them A to E. Add different substances to each of the five tubes as shown in the table below and e..

When the rubber sheet is pulled down, the volume of the cavity increases. This brings the pressure down. Low pressure inside the jar brings the air rushing in through the tubes and inflates the balloon. Experiment Demonstrating Expiration To demonstrate expiration, the rubbe..

Aristotle, the great ancient philosopher performed some experiments to study the speed of freely falling objects. He observed that when two bodies of different masses were dropped simultaneously from the same height, the heavier object reached the Earth's surface earlier than th..

Place two coins A and B near the edge of a table as shown in the figure. Simultaneously drop the coin A vertically and flick the coin B horizontally. After a while we will hear just one clink, showing that both the coins reach the ground at the same tim..

Industrially, oxygen is manufactured from the air. The industrial method is based on a very simple principle known as Joule-Thomson effect. Air is first subjected to liquefaction (made liquid) and then to fractional distillation, to separate out oxygen from it. When a gas under pressure is relea..

Small drops of oil formed by a sprayer are allowed to fall in between a positively charged upper metal plate and a negatively charged lower metal plate. The space between the two plates is irradiated with X-rays. This displaces some electrons of the air molecules, which consequently get ..

Take a bell jar. Towards its rounded end, fix a 'Y' shaped glass tube and on the open ends of the two branches tie a balloon each. On its open end tie a thin rubber sheet. The cavity of the bell jar acts as the thoracic cavity, the "Y" shaped tube as the trachea that branches into bronch..

Inertia - It is clear from Galileo's experiments that all objects have a tendency to continue in their state of rest or of uniform motion until an external force acts on it. The following examples will help to understand the observations of Galileo's experiment. Place a cardboar..

The pressure exerted by a liquid on the base of the container depends on the vertical height of the liquid over it not on the area of cross-section. As one goes deeper in the swimming pool, the pressure on the ear drum is found to increase. A column of mercury exerts more pressure than a column of ..