Gas Laws

Millet-Rivera, Concepcion
Sklodowski, William
Zuger, Nancy

Objectives

To see effects of temperature and pressure on volume of gases. 

Equipment and Materials

2 hot plates 
tea kettle                 
sponge
vacuum pump
plastic pop bottle 
large marshmallows
rubber stopper
ice
Erlenmeyer flask
2 large beakers
2 balloons
dropper
water

Recommended Strategies

Set on front long desk 5 different stations.
     Station #1- put a sponge
     Station #2- have a vacuum pump with marshmallows
     Station #3- have a tea kettle with boiling water
     Station #4- put a bottle filled with water and a dropper inside (Cartesian 
                 diver) 
     Station #5- have one balloon in ice and one balloon in hot boiling water 

Form 4 groups of 3 students and assign them to a station.  Wait 5 mins. then rotate 
the group of students to the next station.  Every group will get a turn to work with 
the materials on each station. Have students answer questions from handout while on 
each station. Discuss results. 

Additional Strategy For Primary Students

Children will participate in a pantomime dealing with the effects of temperature on a 
flask sealed with a balloon.  Teacher will place the flask on ice, after one minute 
it will be removed.  Using pantomime, presenter will call a student up to the front 
of the room and have the child put their hands on the flask.  Presenter will then 
guide the class in a non-verbal discussion about what is noted about the flask and 
the balloon.