1. How are clouds form, types of clouds.
Questions:1. What happen when the droplets join together?
2. What is the function or duty of clouds?
3. How do droplets form?
4. What do clouds do and help to?
5. Where do stratus clouds settle?
https://www.youtube.com/watch?v=zn3MhQawLpc
2. what is precipitation?
Complete the sentences:1. All precipitation developed in ______________. As water vapor _______________ it form droplets and if the cloud moves to the part of the _____________________ where blows freezing the droplets form ____________________. The cooling process can happen in many different ways, air may be force to raise along a warm front and as it cools deep layers of clouds can be develop sometimes reaching thousands of meters all the way down to ground level, and they also be force to raise as cold front aproveches, in this instance a wage of cold, dense air pushes under the warm, moistair ahead of it, lifting it. Weather front tend to bring generally cloudy skies with long ______________ or drizzles, or __________________ or ______________, according to the time of the year.
2. Let´s look first at rain and drizzle. The only real difference between rain and drizzle is the size of the ________________. Drizzle is composed of very small _______________. The tiny droplets that fall from the clouds merge together until the droplet size become large enough to fall under its own weight.
3. When clouds are in air that is below freezing we often get a mix of _______________ and super cool water _______________. That is water which is just below ______________ but it hasn't yet turn to ice. It is the mix of _____________ and super ___________ droplets to understand how much precipitation forms.
4. As the air cools the water vapor _______________ into water droplets forming _____________. As the cloud grows up through the ________________ it will soon pass the freezing _________ and water droplets will freeze and for ice crystals. That is called ________________.
https://www.youtube.com/watch?v=SesRrocIFtc
Experiments:
For each experiments please complete the following information:
1. Material:
2. What do you do?
3. What did you learn?
1. Cloud in the Jar.
https://www.youtube.com/watch?v=ehW_F94ifRYMost clouds form as warm air rises in the atmosphere and cools down. All air contains some water vapor and warm air can hold more water vapor than cold air. As warm air cools the water vapor turns into tiny droplets of water or ice. As more and more air cools down, more droplets form and they eventually become a cloud.
When pressure is high, it prevents clouds from forming and the weather is likely to be fair. When air pressure is low, clouds form more easily and there is a greater chance of rain or snow.
Air pressure is just one factor in cloud formation. In this experiment, you will see what are some of the other factors that cause clouds and precipitation.
Taken from: http://www.ducksters.com/science/earth_science/clouds.php
and: http://www.livescience.com/40634-cloud-in-a-bottle-science-fair-projects.html
2. how to make rock candy.
Please make this experiment at home and ask your parents for help. Have Fun!!!
https://www.youtube.com/watch?v=jMcWDWKpthk
How do they form?
The process of crystal forming is called crystallization. Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal.
In nature, crystals can form when liquid rock, called magma, cools. If it cools slowly, then crystals may form. Many valuable crystals such as diamonds, rubies, and emeralds form this way.
Another way crystals form is when water evaporates from a mixture. Salt crystals often form as salt water evaporates.
Taken from: http://www.ducksters.com/science/crystals.php
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