You put steel wool in a water bottle and put a balloon on top. The balloon starts to expand. Which type of property are you testing? Chemical--oxidation
Chemical-compound
Physical-oxidation
Physical-compound

Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99

Scientist think that animals with remarkably similar embryo development probably shared a common ancestor

Can anyone answer these questions? ? i need it before 1: 00pm today