Background: All fluids exert pressure like the air inside a tire. The particles of fluids are constantly moving in all directions at random. As the particles move, they keep bumping into each other and into anything else in their path. These collisions cause pressure, and the pressure is exerted equally in all directions. When particles are crowded together in one part of an enclosed space, such as the air particles first entering a tire, they quickly spread out to fill all the available space. That’s because particles of fluids always move from an area of higher pressure to an area of lower pressure. This explains why air entering a tire through a tiny opening quickly fills the entire tire.

Situation: During a particularly dry year the far At first he was carrying water from the near by creek but decided he needed to find an easier way to get water to his crops. The farmer decided to dig an irrigation ditch from the creek to his fields. He used rocks to block off the creek while he dug. when he was done digging the ditch he removed the rocks and watched as the water flowed down the irrigation ditch to his fields.

Question: Was the water pressure higher in the creek or the canal.

Situation: During a particularly dry year the far At first he was carrying water from the near by creek but decided he needed to find an easier way to get water to his crops. The farmer decided to dig an irrigation ditch from the creek to his fields. He used rocks to block off the creek while he dug. when he was done digging the ditch he removed the rocks and watched as the water flowed down the irrigation ditch to his fields.

Question: Was the water pressure lower in the creek or the canal.

Situation: During a particularly dry year the far At first he was carrying water from the near by creek but decided he needed to find an easier way to get water to his crops. The farmer decided to dig an irrigation ditch from the creek to his fields. He used rocks to block off the creek while he dug. when he was done digging the ditch he removed the rocks and watched as the water flowed down the irrigation ditch to his fields.

Question: was the presssure behind the rocks high or low?

Situation: During a particularly dry year the far At first he was carrying water from the near by creek but decided he needed to find an easier way to get water to his crops. The farmer decided to dig an irrigation ditch from the creek to his fields. He used rocks to block off the creek while he dug. when he was done digging the ditch he removed the rocks and watched as the water flowed down the irrigation ditch to his fields.

Question: Did the water fill the whole ditch or only part of it?

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: Was the air pressure higher or lower iside the balloon when it was flat?

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: When it was flat was there more air pressure in the ballon or outside or was it the same?

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: When blown up was the air pressure in the ballon or outside

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: When Mary waws blowing air in the ballon was the pressure higher near the opening or further in?

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: When Mary waws blowing air in the ballon was the pressure lower near the opening or further in?

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: When Mary waws blowing air in the ballon did the molecules stay at the opening or spread out?

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: As Mary blew up the baloon was the pressure inside increasing or decreasing??

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: As Beth played with the baloon was the airpressure inside even or uneven???

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: When Mary opened the balloon was the pressure inside increasing or decreasing?

Situation: Mary blew up the punching balloon for her daughter. She blew air into the narrow opening until the balloon was full then tucked it closed. After Ann played with it for awhile she gave it back to her mother. Mary opened the balloon back up and the air rushed out of the opening.

Question: When Mary opened the ballon did the air spread out or stay together??

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: Did the sauce fill the funnel or stay to one side?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: When the funnel was full was the pressure greater in the funnel or the jar?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: When the funnel was full was the pressure less in the funnel or the jar?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: Was pressure being applied to the whole funnel or part of it?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: Did the sauce clump together or spread out as it entered the jar?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: When the jar was full and the funnel empty where was the pressure greatest??

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: When beth starts pouring is the pressure greater in the sauce pan or the funnel?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: When beth starts pouring is the pressure less in the sauce pan or the funnel?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: When beth If the jar falls will the sauce stay in the jar or move to the table?

Situation: Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.

Question: If the jar spills will the sauce stay together or spread out across the table?