Acceleration is a vital part of studying certain principles in physics.
Therefore we must perform one of the most basics of labs, which is the balloon dropping. By dropping balloons from certain heights and recording times and such, we can learn to calculate acceleration. Make sure all needed materials are acquired. Then proceed to fill up the balloons with water, trying to keep an average size for all. Drop three of the balloons, recording the time when released from hand to moment of impact of the ground.