1. List 3 things that make it difficult for Mark to survive on Mars 2. Why did Nasa not want the crew to know that Mark was still alive?
3. How do you think Marks sense of humor helped him survive? Use 2 example from the movie
4. Explain how Mark is rescued.

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?