They decide to try new ways of sending supplies to Mars because In The Martin Movie

A. The airlock decompresses and Watney gets sick
B. The airlock decompresses and the crops flood
C. The airlock decompresses and the crops die

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

One does not belong why? ice, gold ,wood ,diamond and table salt

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.