The baking time and temperature are my independent variables. My experiment is a little funky because usually there is only ONE independent variable.
The independent variable is on the x-axis. This would be the names of the different brands of cookies. The axis that is vertical. This is where you find the dependent variable.
What is a variable in baking?
A variable is any part of your experiment that can be changed to influence the results. For my experiment, I will be changing one variable: the flour. Other variables such as time and temperature must remain the same.
What are the variables that change when you bake a cake?
Some chemical reactions to keep in mind while doing this tasty experiment are:
- Heat helps baking powder produce tiny bubbles of gas, which makes the cake light and fluffy.
- Heat causes protein from the egg to change and make the cake firm.
- Oil keeps the heat from drying out the cake.
What is the independent variable in chocolate?
It is the variable the experimenter will manipulate and make different in order to see how it affects something. It is the CAUSE of a change. If a researcher is measuring the effect of chocolate on happiness, the independent variable is chocolate. Chocolate is what will be tested.
What is hypothesis example?
Here are some examples of hypothesis statements: If garlic repels fleas, then a dog that is given garlic every day will not get fleas. If sugar causes cavities, then people who eat a lot of candy may be more prone to cavities. If ultraviolet light can damage the eyes, then maybe this light can cause blindness.
What are control variables?
A control variable is an element that is not changed throughout an experiment, because its unchanging state allows the relationship between the other variables being tested to be better understood.
What are 3 variables we measure in cooking?
And there are so many variables when baking – your ingredients, how you measure your ingredients, the mixing technique, your pans, temperature and humidity, and your oven. Some of these variables are hard to control, but you can control accuracy by weighing ingredients.
Is the outcome variable The dependent variable?
The dependent variable is what is being measured in an experiment or evaluated in a mathematical equation. The dependent variable is sometimes called “the outcome variable.”
What is an independent variable in physical science?
An independent variable is defines as the variable that is changed or controlled in a scientific experiment. It represents the cause or reason for an outcome. Independent variables are the variables that the experimenter changes to test their dependent variable.
The reaction is non reversible. The sugar, flour and eggs can no longer be separated. The properties of the materials have changed so it is a chemical change. Baking the cookies is a chemical change, but some of the ingredients may go through a physical change before entering the oven.
When sodium bicarbonate (baking soda) heats up, it causes a chemical reaction: 2NaHCO3 ? Na2CO3 + H2O + CO2. The CO2 gas that’s formed makes the “bubbles” in the cookies.
| Ingredients | In Chemistry Speak |
|---|---|
| 2 ¼ cups all-purpose flour | Gluten |
| 1 teaspoon baking soda | Sodium bicarbonate (NaHCO3) (base) |
| ½ teaspoon salt | NaCl |
A more common chemical reaction that happens in almost every cookie is the Maillard reaction.
Is happiness an independent variable?
The dependent variable is the happiness level and independent variables…
What is the independent variable in chocolate may cause pimples?
Chocolate is independent and pimples are dependent. If chocolate is eaten then it will cause pimples. Salt in soil may affect plant growth. Salt in soil is independent and the plant growth is dependent.
Which chocolate melts the fastest experiment?
dark chocolate bar
Ultimately, the dark chocolate bar melted the quickest, followed by the peanut butter cup, milk chocolate bar and the other three offerings. Temperatures are expected to remain hot over the next several days, with August heat really taking hold.
What are some examples of independent and dependent variables?
Independent variable causes an effect on the dependent variable. Example: How long you sleep (independent variable) affects your test score (dependent variable). This makes sense, but: Example: Your test score affects how long you sleep.
What is independent variable in research?
An independent variable is the variable you manipulate, control, or vary in an experimental study to explore its effects. It’s called “independent” because it’s not influenced by any other variables in the study.
What is the independent variable in a hypothesis?
A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. It may take the form of a cause-effect statement, or an “if x,…then y” statement. The cause is called the independent variable; and the effect is called the dependent variable.
How many independent variables are there?
one independent variable
You should generally have one independent variable in an experiment. This is because it is the variable you are changing in order to observe the effects it has on the other variables.
What are 3 types of variables?
A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.
Contents