i have to do an chain reaction demonstrating 4-5 types of energy forms (heat, chemical, etc.). we can start it and then it must go on my its self. after 15 seconds, it must make a noise. im ok in science, but i don't know what to do or where to start! please help!!!

You could try lighting a fuse with a firecracker on the end.

 

Sound, light, heat, etc.

I would do battery(chem) - electic - magnet - kinetic - etc...

 

As for a sound, think ringing...