Table of Contents
- 1 Is freezing point a dependent variable?
- 2 How could water be used as an independent variable?
- 3 What is the hypothesis of freezing water?
- 4 How does salt affect the freezing point of water lab report?
- 5 How are independent and dependent variables alike?
- 6 How does the amount of liquid in a freezer change?
- 7 Which is the dependant variable in the experiment?
Is freezing point a dependent variable?
The dependent variable is the freezing point of the solution, and will be measured with a thermometer. The constants (control variables) are the temperature of the environment (which will remain at room temperature), the amount of solution in each test tube and the temperature of the ice in the basin.
What is the independent variable in freezing water experiment?
The aim of the project is to prove whether or not adding sugar and salt to water will affect the freezing point of the water and will therefor take longer to freeze. Independent Variables: the independent variables are the amount of salt and sugar added to the solution.
How could water be used as an independent variable?
In this case, the amount of water is the independent variable because that is what you’re changing in the experiment: one seed gets a lot of water and the other seed only gets a little water.
What is the dependent variable of freezing water?
The dependent variable (also known as responding variable) is the freezing point of water. Freezing point is the temperature in which water will freeze. Constants are the amount of water in each cup.
What is the hypothesis of freezing water?
CONCLUSION- Our hypothesis was if the heat energy in the water decreases, then the water will freeze. After testing our hypothesis we concluded that our experiment was a success. By adding ice and salt to the beaker that our test tube was sitting in it made the water freeze.
How do you determine the freezing point of water?
Insert the thermometer in the slush, before the one you’re measuring turns completely liquid. Leave the thermometer in there until the point when it becomes all liquid. Write down the temperature when that happens. Make sure the thermometer you are using reads below 0 degree C.
How does salt affect the freezing point of water lab report?
Salt molecules block water molecules from packing together when temperature is lowered. It then prevents them from becoming ice. More water molecules leave the solid phase than the ones entering the solid phase. Freezing point depression occurs when the freezing point of the liquid is lowered by addition of solute.
What would the dependent variable be?
The dependent variable is the variable that is being measured or tested in an experiment. 1 For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants’ test scores, since that is what is being measured.
How are independent and dependent variables alike?
These two variables are used alongside each other, and a change in the independent variable will translate to a change in the dependent variable. That is, they are similar in the sense that they change at the same time. These changes may, however, occur in the opposite direction to each other.
What is a independent variable in science?
Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn’t changed by the other variables you are trying to measure. For example, someone’s age might be an independent variable.
How does the amount of liquid in a freezer change?
All the liquids have different ingredients. The time it takes all the liquids to freeze. The freezer does not change. The amount of liquid poured into each cup is the same amount.
Is the freezing point of water the same for all liquids?
Liquids do not all freeze at the same rate. While the freezing point for water is 32 degrees Fahrenheit, many other liquids have higher or lower freezing points.
Which is the dependant variable in the experiment?
The time it takes the water to freeze is the dependant variable. The constant variable used were the same amount of liquid and in the same place. The experimental control for the investigation is the the different liquids used.The experiment is a safe experiment with no hazards. To ensure validity i poured the liquid into 2 sections.
How is the expansion of a liquid related to its freezing?
How Fast Liquids freeze. The expansion is part of the phase that changes the ice floating with some 8% of its mass above the surface.The expansion upon freezing comes from the fact that water crystallizes into an open hexagonal form. This hexagonal lattice contains more space than the liquid state.