Multiple Choice Questions 1. What phase change occurs when ice is exposed to pressure?

Multiple Choice Questions
1. What phase change occurs when ice is exposed to pressure?
A. Melting
B. Freezing
C. Condensation
D. Sublimation
2. Which of the following is an example of an exothermic reaction?
A. Melting of ice
B. Boiling of water
C. Combustion of thermite
D. Condensation of steam
3. What state of matter is thermite in before ignition?
A. Gas
B. Plasma
C. Liquid
D. Solid
4. What happens to the temperature of ice when thermite is ignited on it?
A. It remains constant
B. It increases rapidly
C. It decreases
D. It remains constant
5. Which phase change involves a solid turning directly into a gas?
A. Melting
B. Freezing
C. Sublimation
D. Condensation
True or False Questions: Thermite Experiment
Read the statements below and determine whether they are True or False based on the Thermite experiment.
1. The thermite reaction is an example of an endothermic process.
2. Thermite can reach temperatures high enough to melt steel.
3. The thermite reaction involves iron oxide changing from solid to gas.
4. The reaction between thermite and ice is safe to perform without protective gear.