Electronic Journal of Differential Equations, Vol. 2007(2007), No. 169, pp. 1-9. Title: Oscillation criteria for impulsive dynamic equations on time scales Authors: Mugen Huang (Hanshan Normal Univ., Chaozhou, China) Weizhen Feng (South China Normal Univ., Guangzhou, China) Abstract: Oscillation criteria for impulsive dynamic equations on time scales are obtained via impulsive inequality. An example is given to show that the impulses play a dominant part in the oscillations of dynamic equations on time scales. Submitted September 2, 2007. Published December 03, 2007. Math Subject Classifications: 34A37, 34A60, 39A12, 34B37, 34K25. Key Words: Oscillation; dynamic equations; time scales; impulsive; inequality.