Scientific Method (General)
What are the first THREE steps of the Scientific Method in its correct order?
1. Question
2. Hypothesis
3. Experiment
What is the freezing point of water?
0 degrees Celsius (or 32 degrees Fahrenheit)
How is dry ice used? Provide 3 examples.
Transportation of food; preservation of food/plants; medical purposes
The process in which matter turns from a liquid to a solid is called
Solidification
What question will we be examining in our experiment?
What might happen if we put dry ice in juice?
What are the LAST THREE steps of the Scientific Method in its correct order?
4. Data
5. Analyze
6. Report
What is the state of matter of ice?
Solid
True or False: It is safe to eat and touch dry ice.
FALSE!!!!!! YOU WILL NOT BE TOUCHING THE DRY ICE, NOR WILL YOU CONSUME IT!
Deposition can be defined as
The process in which matter turns from a gas to a solid, and skips the liquid phase.
Fill in the blanks: If we put dry ice in juice, then ________ , because ________.
*ANSWERS WILL VARY*
A testable statement based on background knowledge, research, or scientific reason; It shows the cause and effect of doing something
Hypothesis
What is the chemical composition of water?
H20
What is the chemical composition of Dry Ice?
CO2
What is sublimation?
The process in which matter turns from a solid to a gas, and skips the liquid phase.
In our experiment with dry ice, what will be the independent variable? what will be the dependent variable?
Independent: Dry Ice
Dependent: Juice
What is the proper format we should use when creating our hypothesis?
"if... then... because"
The gaseous phase of H20 is
Water vapor
True OR False: Carbon Dioxide does NOT exist in a liquid phase.
False: Carbon Dioxide requires a precise temperature and pressure in order to turn into its liquid form.
A variable that isn't changed by another variable you are trying to measure.
Independent Variable
In our experiment, which will serve as the BASE experiment for comparison with other trials of the experiment?
A) The juice with regular ice
B) The juice with the dry ice
True or False: the purpose of conducting an experiment is to find out whether or not our hypothesis is correct
True
What are three forms of ice (besides ice cubes?)
Snow, Frost, Sleet, and/or Hail
Give three examples of where CO2 is found in everyday life?
Fire extinguishers; when we exhale; in sparkling beverages such as soda;
The base experiment for comparison with other trials of the experiment. It is the part that doesn't change in the experiment.
Constant/Control Group
In our experiment, the juice will be our ____ variable (provide the term AND its definition)
Dependent variable; a variable that depends on another factor.