Thursday, March 19, 2020

liquids essays

liquids essays In this chapter we will see how water and its three states of matter play a big role in our daily lives. Even though all the three of matter of water have the same molecule, they can be different at some point. For example it takes more energy to change liquid water to steam than to melt ice at 0 c. The liquid water state lies in between solid and gas, but not midway between. But liquid is more similar to solid than to ice. Solid states is in terms of closely packed, highly ordered particles in contrast to widely spaced, randomly particles of gas. The liquid states between both, with more disorder arrangement than for the solid state and with some empty spaces. Those are just some of the important properties of liquids and solids. There are many solids and also gases at the atmosphere, but the liquid we most see is water. It is one of the most important substances on earth. It is important for sustaining reactions in our bodies that keep us alive. One water phase change is when you heat liquid water, what happens? First the temperature of the water rises. Now the motion of the water molecules increase, then when the temperature reaches 100 c, the water starts boiling, the temperature remains at 100 c. Until all the water has change to gaseous state. That is how liquid water can change from liquid to gaseous state. Another water phase occurs when liquid water is cooled to 0 c where the water starts to freeze. But until all the liquid water has change to ice, then the temperature starts decreasing again. Now the water is no longer liquid it has change states to solid ice. At temperatures below 0 c liquid water freezes and above 0 c ice melts. But water expands when it freezes. That is because ice at 0 c has a greater volume than one gram of liquid water at 0 c. 13.2 Energy Requirements for the Changes of State Changes of state from solid to liquid and from liquid to gas ...

Monday, March 2, 2020

Fire Tornado Project

Fire Tornado Project A fire tornado forms when fire is caught up in a vortex. Fire tornadoes or fire devils occur naturally in some wildfires, but you can make a small scale fire tornado yourself. Heres how: Fire Tornado Materials In order to produce a fire tornado, youll need a source of fire and the ability to create an air vortex or whirlwind. The fire tornado is made by placing a container of fire onto a spinning surface. A cylinder of mesh or screening forces the air into a column to force air into a vortex. lazy susan or table or chair that can rotate freelycontainer of fire (e.g., fireproof bowl containing pieces of sponge sprinkled with lighter fluid or alcohol)cylinder of wire mesh or screen with diameter to fit outside the fire bowl. Make the mesh cylinder by rolling a sheet of metal window screening or chicken wire into a tube. Be sure the tube is wide enough to fit around the container youll be using for fire. Staple the ends of the tube to secure it into a cylindrical shape. Create the Fire Tornado Practice this set-up without igniting the fire to be sure your container wont go spinning off. Its a good idea to secure the bowl and screen tube to the lazy susan with tape or glue so that it wont go flying off when you spin the fire. Its also a good idea to have a fire extinguisher handy, just in case. Set the fireproof bowl in the center of the lazy susan. Secure the bottom so the bowl will remain stable when spun.Place the sponge with lighter fluid into the bowl.Set the metal mesh cylinder around the bowl. See if you can spin the lazy susan without incident. You may need to secure the cylinder.Once you are confident of your set-up, ignite the fire in the bowl and slowly start spinning the lazy susan. See a video of this project or make a green fire tornado. Disclaimer: Please be advised that the content provided by our website is for EDUCATIONAL PURPOSES ONLY. Fireworks and the chemicals contained within them are dangerous and should always be handled with care and used with common sense. By using this website you acknowledge that ThoughtCo., its parent About, Inc. (a/k/a Dotdash), and IAC/InterActive Corp. shall have no liability for any damages, injuries, or other legal matters caused by your use of fireworks or the knowledge or application of the information on this website. The providers of this content specifically do not condone using fireworks for disruptive, unsafe, illegal, or destructive purposes. You are responsible for following all applicable laws before using or applying the information provided on this website.