subject
Geography, 20.02.2021 18:00 babygreg2001p97abr

Plz help me quickly . Materials: A clean dry transparent glass jar (e. g., a jam bottle or a bigger bottle) Warm water Ice cubes Metal lid or a piece of metal (tray) to cover the mouth of the bottle.

steps : Fill a jar with 2 inches (5 cm) of warm water and stir. Then light a match, blow it out and quickly drop it into the jar. Immediately place an ice-filled metal tray or metal lid with ice on rop. Observe what happened for a couple of minutes. Lift the metal lid off the mouth of the Jar and observe what happens.

Questions:

(1) Why did you fill the jar with warm water and not cold water?

(2) What is the purpose of dropping a match that gives out smoke? What other materials can you use instead of a match?

(3) What is the purpose of placing a metal lid or tray with ice on top?

(4) What did you see inside the jar after a couple of minutes? Explain what happened inside the jar

(5) If the experiment were repeated. without a match producing smoke what would you expect to see? No thick cloud​


Plz help me quickly ...... Materials:

A clean dry transparent glass jar (e.g., a jam bottle or a

ansver
Answers: 3

Another question on Geography

question
Geography, 24.06.2019 10:50
Based on your knowledge of industrialization, which of the following statements best describes what is happening in this photo taken in the us around 1910? a. the children pictured here likely worked a 4 - 6-hour shift after school, five days a week, for minimum wage. b. the children pictured here are working illegally, as child labor was prohibited in the late 1880s. the children pictured here likely worked a 12-hour day, six days a week, for about one dollar a week d. the children pictured here likely earned good wages, were protected from risk of injury, and were likely to have a successful, long-term career in this industry.
Answers: 1
question
Geography, 24.06.2019 14:00
Name the country with the highest population in africa?
Answers: 2
question
Geography, 24.06.2019 15:00
Which of the following is an accurate description of the recent political history of the democratic republic of the congo? a. religious tensions have escalated into full-scale civil war a number of times since the belgians left the country in 1960. b. the political leader who gained power after the overthrow of a corrupt dictator was assassinated. c. the military leadership felt the country was stable enough, so they permitted democratic elections to take place. d. in 1990, a dictator seized and has held power ever since.
Answers: 1
question
Geography, 24.06.2019 15:00
What mountain is the highest mountain in europe?
Answers: 2
You know the right answer?
Plz help me quickly . Materials: A clean dry transparent glass jar (e. g., a jam bottle or a bigger...
Questions
question
Chemistry, 17.07.2019 10:50