Exploring Air Pressure

The following experiments give us a good look of how air pressure works. Please watch the video's again, and share your thoughts about what you understand about air pressure.

Choking Candle

Experiment 4 - Choking Candle

Today we set out to solve the problem of how long will it take a candle to burn out when covered with a jar; 3 jars where used of varying size. 

Hypothesis:
The different size jars will have an impact on the length of time it takes for each of the candles to blow out. 

Materials

• 3 jars (small, medium, large)
• 3 tealight Candles
• lighter
• stopwatch

Procedure

• at 3 separate intervals (times) we will cover the lit candles with the jars. 
• We will record the time it takes for the candle to burn out in each test

Please use the comment box to share your reflection and conclusion from the experiment

Science Labs 1 and 2... "Damp Dunk" and "Bag in the Bottle"

In science class today we did 2 experiments related to air. The first experiment was title "Damp Dunk" and asked the students to solve the problem: Does air take up space? The second experiment was titled "Bag in the Bottle" and students needed to solve if air exerts pressure?

Watch the 2 videos from the experiments and please leave a comment sharing your conclusions about what you learned.

Experiment 1

Experiment 2

Looking forward to reading your comments... :)

Science Experiment 1 - Balloon blow up

Problem 

How can we blow up a balloon inside a bottle

Hypothesis

When we blow up a balloon in a bottle it will only blow up a small amount, because it will not have enough room to fully expand

Materials

• 4 balloons
• 1 soda bottle 
• 1 soda bottle with a small hole in the bottom

Procedure

• Three student will attempt to blow up the a balloon in a bottle (using the non damaged bottle)
• Mr. Lakusta will attempt to blow up the balloon using the bottle with a small hole in the bottom of the bottle

Observations

I now invite you to post a comment and make a conclusion about the experiment. Can you make any other predictions based on our findings? I am curious to hear what you have learned from our first experiment in our new unit "Air and Aerodynamics"