Put some blue cobalt(ii)chloride in a petrish dish and put it out side,check it later and see the color change, showing that water vapour is present.
In an experiment, a positive control is used to show that the experiment can detect a specific response, while a negative control is used to show that the experiment does not detect a response when it should not.
You can show the effect of pressure on the solubility of carbon dioxide gas in water by conducting an experiment where you change the pressure on a closed system containing carbon dioxide and water. By altering the pressure and observing how the solubility of carbon dioxide changes, you can demonstrate the relationship between pressure and solubility.
Leave water in a dish in the sun, place a clear plastic sheet several centimeters over the dish in a tent-like shape, and have another dish on both sides of the primary dish. The water from the primary will end up in the collection dishes because the water will evaporate and then be stopped on the sheet, and drip in to them.
Propane is a hydrocarbon compound composed of carbon and hydrogen atoms. Its chemical formula is C3H8, indicating that it contains hydrogen atoms. The presence of hydrogen in propane can be confirmed through various analytical techniques such as elemental analysis or spectroscopic analysis.
One experiment you could carry out is to dissolve both rock salt and table salt in water and compare the clarity of the resulting solutions. Rock salt typically contains more impurities than table salt, so the solution made from rock salt would likely be cloudier due to these impurities. Additionally, you could conduct a simple taste test to compare the purity of the two salts.
No, the experiment does not show that cold water boils faster than hot water.
clouds
How the water cycle and heat are related: Adding or subtracting heat makes the water cycle work. If heat is added to ice, it melts. If heat is added to water, it evaporates. Evaporation turns liquid water into a gas called water vapour. As water goes through its cycle, it can be a solid (ice), a liquid (water), or a gas (water vapour). Ice can change to become water or water vapour. Water can change to become ice or water vapour. Water vapour can change to become ice or water. If heat is taken away from water vapour, it condenses. Condensation turns water vapour into a liquid. If heat is taken away from liquid water, it freezes to become ice. The water cycle involves the sun heating the Earth's surface water and resulting in the surface water evaporating. The water vapour rises into the Earth's atmosphere. The water cools and condenses into liquid droplets. The droplets grow until they are heavy and fall to the earth as precipitation (which can be rain, freezing rain or snow).
Evaporate the water, leaving the ink behind.
To show the presence of water vapor in the air, you can perform a simple experiment using a cold surface, such as a glass or mirror. When you hold the cold surface in the air, you will notice condensation forming on it, which indicates that water vapor in the air has cooled and turned back into liquid water. Additionally, you can use a hygrometer to measure humidity levels, providing a quantitative indication of water vapor in the air.
An activity to demonstrate that air contains moisture is to use a mirror. Hold a mirror up to your mouth and breathe on it. The moisture in your breath will condense on the mirror, showing that the air you exhaled contained moisture.
start by putting soil a drainer. then but the drainer over a bucket . then poor water in the soil slowly . if there is water in the bucket the answer is no . but if there is no water in it the answer is yes .
Salt solutions are used in osmosis experiment to show that water will move to the side that has more salt. "Water follows salt."
The most important part of an experiment on this subject is to show how it is actually in a cycle. You can start by doing one experiment about how water can evaporate and then move on to how water condenses and rains.
Lichens are a good indicator species for acid rain. Lichens absorb water and nutrients from the air. They absorb the nutrients that they need from the water. Rainwater contains enough sulphur dioxide to make them stop growing.
One simple activity to demonstrate that air contains water vapor is to take a glass filled with ice cubes and observe the condensation forming on the outside. As the cold surface cools the air around it, the water vapor in the warm air condenses into tiny droplets, illustrating that air indeed contains moisture. This phenomenon occurs because cooler air holds less water vapor than warmer air, leading to visible condensation. Thus, the presence of water droplets on the glass provides clear evidence that air contains water vapor.
What did Dalton's experiments show