blow up twister Wind and Air Pressure Lesson

This is the second part of the 4-part hand.Unit study on weather and weatherMake weathervane and barometer, perform high and low pressure, blow balloons and collapse jars with hot water, make and eat the prevailing wind, and more!My course is for 2nd-Children of grade 3rd and their siblings.These are the classes I created to work with weekly family Schoolsop.
We meet 2 1/2 hours a week with 14 children under the age of 113.Use these fun lessons with your classroom, family, after-school lessons, camp or collaborationop!Http:/iijuan12hubpages.air-pressure-and-wind-weather-lesson-.Does Air occupy space and move?1.Stretch.Pray.Read and discuss Jeremiah-13.Ask the children what God uses to create seasonal changes and weather.
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Read Arthur Dolos's feel the wind.
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Air profile: Q: "Does Air occupy space ?""Blow a balloon (don't tie it tight) to show that the air takes up space.4.Q: "How does air move?\ "It moves from high to low.Use the same balloon that you have blown up and let everyone feel the balloon is closed when you pinch it.
For example, the air molecules are very close.There is a lot of air pressure.Will you be comfortable if we squeeze you all together?No, you want to move out so you have space.Like you, the air molecules in the balloon also want to go out, where there is more space (low pressure ).
Prove this by releasing the air in the balloon.Q: "Do air molecules want to squeeze together in balloons?"(No, they prefer to go from high to low.Does the air have weight?5.Q: "Is there any weight in the air ?""Let the children wave their hands in the air.
Ask them if the air around them feels heavy or light.Lift up a 1 square inch piece of paper and get around it so the kids can hold it.The air is much heavier than this baby/toddler.
Point to a baby or toddler.
Weigh 17 pounds per square inch!Blow up a balloon and fasten it.Ask the kids, what's in this balloon?âx80x9d (Yes, air.) Tie the balloon to one side of the ruler & tie an empty balloon to the other side of the ruler.
Raise the ruler by grasping the yarn in the middle.You have a balance now.Ask the children what they noticed.(The blown-The rising balloon is much heavier than the one without an explosion.Q: "What is the only difference between the two?\" (Air!, Let each child take the "balance" to compare the weight of the two balloons.
Can you see the hot air blowing?6.
Turn on the lights without shadows.
It takes a minute to warm up.
) Ask the children to recall their knowledge of the warm air last week.Prompt them if necessary.(The hot air rises, which creates the wind.) Sprinkle some baby powder on the table next to the lamp.
Q: "What will happen?\ "(Baby powder falls on the table.) Gently sprinkle the baby powder over the hot bulb and let the kids watch it bounce up.Tell them, "This shows you the heat of rising and generating wind.
"(If you are not limited by time) let each child sprinkle some baby powder on the bulb.Remind them to be careful because the light bulb is very hot.7.(Start boiling water when the children are doing 5 & 6 activities.
Q: "What caused the wind to move?\ "Show how heated air causes the air molecules to accelerate and cool the air causing the air molecules to slow down.Stretch the opening of the balloon on the neck of the bottle.Make sure it is tight so there is no air to escape.
Place the lower half of the bottle in hot water 1-2 minutes.Q: "What happened, why?The balloon will swell.Air molecules are warming, which causes them to move more and spread more around.
) If your balloon is not inflated, check if the balloon is tightly sealed to the neck of the bottle.Remove the bottle from the hot water and put the bottle into the ice water bowl.Q: "What happened, why?The balloon will deflate.
The air molecules are cooling and moving less, so the space occupied is smaller.Explanation: as we showed last week when we simulated convection cells, this experiment shows how hot and cold air determines the weather.The warm air mass has a smaller density than the colder air mass around it, making it float up.
This leads to low air pressure on the surface of the Earth.Relative to the warmer air around, the quality of the cold air will subside, resulting in an increase in the surface air pressure.The difference in surface pressure produces the movement of air (from the high pressure zone to the low pressure zone), called wind.
(If you are not limited by time) repeat it once.You can even get the kids to do so as long as they are careful with the hot water.9.(When the children watch the balloon experiment in Activity 8, place at least three empty soda/coke cans on the stove for at least 2 minutes.
Let them sit in boiling water if you don't have a stove.To make this experiment successful, you need to heat the air in the jar.) Ask, "How does the difference between low pressure and high pressure cause water and air to move?"When children perform air molecules, place at least two empty soda/coke cans on the stove for at least 2 minutes.
When the children are ready to watch, let them gather around a bowl of ice water, which should be right next to the heated jar.Using pliers, remove the first tank from the high temperature.Pour it over and quickly immerse it in ice water.
(In order to work correctly, you need to put ice water next to the pot on the stove, as hot air will soon escape.) The jar will pop down and the water will pour in.Explain the cooling and condensation of heated air in the tank to create space (vacuum) for water filling ).
This shows how wind is generated in low and high pressure areas.Repeat the experiment again with the second can and ask the children, "What just happened, why ?"?"My kids love this demo!(If you are not limited by time) you can even get the kids to do so as long as they are careful with hot water.If you do, you need to bring an empty jar for each child.
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What's the weather like?"By Linda DeWitt.
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Make a barometer of the air pressure.
Good steps providedby-Step pictures and instructions.Ask the children, "What is the barometer?"Tell them they will do one today.Let each child expand the balloon at the top of the jar.
Use 1-Hold it tight with two rubber bands.Make sure it is firmly fixed so there is no air leakage.Tie the straw in the middle of the balloon.
This will be your barometer needle.
Tell the kids they need to make sure the straw is still stuck on the balloon when they get home.Then they need to stick a piece of paper to the wall with tape where they won't be disturbed.They should put their barometer next to a piece of paper and mark it on the paper where the straw is.
Every day, they should check where the straw is and record whether the air pressure of the day is high or low, and then record their forecast for the next day's weather.The website above explains how it works: "The higher air pressure pushes the balloon into the jar to make the straw rise.On the contrary, the air in the jar expands as the pressure decreases and the balloon expands, moving the straw down.
Straw makes the movement of balloons easier to see.With the increase of air pressure, straw will become more sunny.As the straw decreases, the sky may become gray and you should see cloudy or rainy weather on the way.
Please also note that the straw moves up and down before the weather changes, as the weather changes usually coincide with the atmospheric pressure changes.(Note: these do work-But only when our weather changes.e.If it's going to rain ).(Each child) 1 balloon with a cut-off neck, 2 rubber bands, a straight straw and clear tape (note: If you blow the balloon first, balloons will be easier to use & then release air before cutting off your neck.
However, you don't have to do this if you don't have time.12.Let the child dramatize the high pressure and low pressure.Give each child a few sheets of blue paper (representing water ).
Let them walk freely in the room as the low pressure pretends to pour heavy rain (put down the blue paper) & wind (blow the air from the mouth ).Because they have enough space, they can easily put down the rain and blow.Then let all the kids squeeze together (we let them all try to squeeze in two chairs) because of the stress.
Q: "Can you pour your rain (blue paper) freely again?Can those of you at the bottom of the pile blow easily (from your mouth?\" No!When the air molecules are crowded together, a high air pressure is generated.The weather is fine.Low pressure brings a lot of rain and wind.Alternatively, you can do this outside and replace the blue paper with a water cup.
The kids will be a little wet if you do.
Option 1: 2 sheets of blue paper (building paper or copier paper) per child ).13.Ask the children, "who remembers what we read from the book about Beaufort's scales and anemometer?Explore the site from this energy source.During our co-We made the speedometer in different directions.
They don't rotate very well and it's hard to do it.The direction of energy exploration may look better if you want to try to make one.14.weather vane.Give each child a firm paper tray with a hole in the middle.
At the bottom of the plate, let the children write "N" at the top of the plate for the North, at the bottom of the plate for the South to write "S", "E" means the east to the right of the plate, "W" means the West on the right side of the plate.Give each child a second strong paper tray and let them put a walnutSize of the ball-Dough in the middle of the plate.Let them place some pebbles or little stones on the edge of the gamedough.
(You can also give each child a dry bean if you don't have so many pebbles.) These will keep the weathervane from falling.Have each child place the first plate upside down at the top of the second plate (so the game shows)Cover the dough and the rocks) and then tape the edges together.
Let each child push the pencil into the hole of the first plate so that the pencil can be inserted into the gamedough.The eraser end should be posted.Give each child arrows, tails and straw.Let them put the arrows in the gap on one side of the straw, and the tail in the gap on the other side of the straw.They can connect them with tape if needed.
Help the children put a straight needle in the middle of the straw.Pass it through the eraser so that the Arrow/straw is attached to the pencil eraser.Don't let it be too tight because you want the straw to spin.
(Each child) 2 heavy paper trays (with a small hole in the middle), marking, walnut-Size of the ball-15.(If you are not limited by time) test them outside with a speedometer and wind vane and determine the wind speed and direction of the day.You can also blow bubbles to determine the direction of the air and see if it matches what the weathervane shows.
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(Optional) quickly discuss the prevailing winds and their relationships with explorers (such as Columbus) or people traveling to and from America and Europe (such as Benjamin Franklin.Show how prevailing winds help or hinder movement by using large fans.Have 1-2 box fans blowing very high to the children.
Let the kids line up one by one and head towards & then away from blowing fans.Q: "Which one is easier?\ "(It should be easier to escape, because the wind helps you, just as the prevailing wind helps sailors cross the ocean.1-17.Show the prevailing wind with Apple ring slices and mini goldfish cookies.
Cut apples from top to bottom ahead of time so they form thick rings.(You don't need to have the core in advance because the kids can eat around the core.) Let the children put the mini goldfish cookies on the Apple rings and follow the pattern of the prevailing wind on the Earth.
If you scroll down a bit.
When the children put the goldfish cookies on the Apple, please mention the name of each wind: extreme Eastwind belt (NE blow), Western Wind Belt (SW blow), trading, downturn (no wind), trading, western winds, extreme eastern winds (blowing from the northwest ).Children can then eat their snacks.(You can use any circle-Replace apples with shaped food if needed.An English muffin with half peanut butter is another good choice.
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.(To make these more quickly, use colored paper so that children don't have to color them.) Place the windmill near the light that has been on for a while.Q: "Why does the windmill move?One 8 per child.
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Homework: Remind your child to record air pressure and weather forecast this week.They can also record the wind direction if they want.20.Do a 5 minute review of what we have learned.
(The list of materials does not include the materials needed to make a speedometer or windmill.-----(Some items are duplicated because you need multiple items in those items.--"Feel the wind" by Arthur Dolos.---Light with a bulb that produces heat (Ie.
---A pan for boiling water (not a big pot ).----Book: "What will the weather be like?---2 sheets of blue paper (building paper or copier paper) per child ).A tiny piece of cut or torn sheet into which you can.
--play-Dough or clay (enough to have a walnut for each child)Size of the ball---Arrow head and tail shape cut from poster sheet paper or grain box-Each child types the cardboard (they will be used to make arrows for the weathervane.------Extension cord (optional---Extension cord (optional------Create tornadoes and clouds in bottles, create and use rain gauges, design and eat clouds before dramatic storms, race against prevailing winds, during this exciting unit study of Weather and Meteorology 4, there is more!This is the first part of the 4-part hand.Unit study on weather and weatherExperiment and demonstrate on how the sun, soil and water affect seasons and weather, dramatize the revolution of the Earth around the sun, and more!This is the second part of the 4-part hand.
Unit study on weather and weatherMake weathervane and barometer, perform high and low pressure, blow balloons and collapse jars with hot water, make and eat the prevailing wind, and more!This is the third part of the 4-part hand.Unit study on weather and weatherCreate clouds in bottles, create rain, build rain gauges, form and eat clouds, and more!This is the fourth part of the 4-part hand.Unit study on weather and weatherCreate a tornado in a bottle, form a hurricane in a mixed bowl, use pie boards and balloons to generate lightning and thunder, and more!This is the ultimate activity of our 4-part hands.
Unit on weather and weatherThe children showed art projects, notebooks and weather experiments they created or performed during the unit.We had a weather later.themed lunch.Including recipes.It also includes where we went during this unit.Do you want to teach this every day?I use the Konos course as a springboard to plan my course.
This is a great course created by mom and active boys!If you are new to home school or need some new guidance, I highly recommend the Konos home school tutor.com program!Watch the video-What to do every day and how to teach it in this great hand --on format!