Give an experiment to demonstrate that matter has mass
Answers
Answer:
Explanation: Fill air in one balloon while leave another balloon with out air . Now take a balance and find the weight of the two balloons . You will see that air filled balloon will have higher weight than the other balloon without air , showing that air has mass.
Explanation:
Air is the sea of particles in which we live. Wrapped around us like a blanket, students sometimes mistake air as being without mass or weight. This easy weather demonstration proves to younger students that air does indeed have mass.
In this quick experiment (it should only take about 15 minutes or less), two balloons, filled with air, will be used to create a balance.
What You'll Need
2 balloons of equal size
3 pieces of string at least 6 inches long
A wooden ruler
A small needle
Step-by-Step Directions
Inflate the two balloons until they are equal in size and tie them off. Attach a piece of string to each balloon.
Then, attach the other end of each of the strings to the opposite ends of the ruler. Keep the balloons the same distance from the end of the ruler. The balloons will now be able to dangle below the ruler. Tie the third string to the middle of the ruler and hang it from the edge of a table or support rod. Adjust the middle string until you find the balance point where the ruler is parallel to the floor. Once the apparatus is completed, the experiment can begin.
Puncture one of the balloons with the needle (or another sharp object) and observe the results. Students can write their observations in a science notebook or simply discuss the results in a lab group. To make the experiment a true inquiry experiment, the objective of the demonstration should not be revealed until after students have had a chance to observe and comment on what they have seen. If the purpose of the experiment is revealed too soon, students will not have the chance to figure out what happened and why.
Why It Works
The balloon that remains full of air will cause the ruler to tip showing that the air has weight. The empty balloon’s air escapes into the surrounding room and is no longer contained within the balloon. The compressed air in the balloon has a greater weight than the surrounding air. While the weight itself cannot be measured in this way, the experiment gives indirect evidence that air has mass.