The temperature at which air becomes saturated with water vapor is called the dew point.Dew forms at the temperature at which it is formed.The probability of fog, carburetor icing, or crop damage can be calculated by using the dew point in the fields of agriculture and aviation.The atmospheric barometric pressure is the weight of the air in the atmosphere.The higher the atmospheric pressure, the lower the dew point and vice versa.
Step 1: The materials should be gathered.
You will need a beverage can, scissors, water, ice, and a temperature to measure the dew point.If you want to do a bigger experiment, use a metal bucket.You can record your results with a pencil and paper.
Step 2: Cut the can.
Remove the top portion of the lid.A can opener is needed for a clean cut.If you don't take your time, you may have sharp aluminum sticking out.
Step 3: On a day when the temperature is above freezing, complete the experiment.
Before starting the experiment, check the weather forecast.The temperature should be above freezing to accurately measure the dew point.For the best results, aim for 60 F.If the weather is warm, you can continue with your experiment.
Step 4: The can should be filled with warm water.
Take your can or bucket and fill it with warm tap water.The temperature of the tap water is about 85 F.The can is made of aluminum.
Step 5: Put ice and water in a container.
A cup or glass will do.Add water to the cup by filling it with ice.Adding ice to a cup of warm water is not something you want to do.
Step 6: There is an outdoor location where you can transfer your supplies.
You should bring all your supplies to the experiment location.Don't break the thermometer or spill any of the liquids.
Step 7: The temperature should be recorded.
It is best to record the starting temperature when conducting scientific experiments.Take a picture of the temperature and time in the cup.
Step 8: Slowly add the ice water.
The can's surface temperature can be lowered by adding ice water to the cup.Don't put pieces of ice in the can.Transfer the ice water slowly to get the most accurate reading.The mixture should be stirred gently as you add the ice water.Keep an eye on the surface of the cup.
Step 9: Dew can be seen on the outside of the can.
You should keep adding ice water to the cup until you notice something on the side of the can.You have been waiting for this moment.The liquid in the cup has reached the dew point once it has formed on the outside.
Step 10: Don't forget to record your data.
Take the temperature of the water and put it in your notes.You need to record the outside temperature where you are conducting the experiment.It's a good idea to record how long it took for it to form.