Answer:
independent: amount of baking powder
dependent: the banana bread that it produces
constants: the amount of other ingredients/the other ingredients, the type of baking powder, rest of the baking process (heat, temperature, timing of steps), and who's tasting the bread.
Explanation:
The independent variable is the thing that we are directly changing.
We usually change this to test out differences between different amounts of this variable;
This variable is the "x" variable in a function or graph, if it helps you to think of it as that.
The dependent variable is the thing that changes because of the independent variable
Once again, if you think of a graph or function, this would be the "y" variable--it changes in relation to x
The constants are the things that stay the same no matter what the changing variables are
This element is key to an experiment--an experiment would be almost pointless without it. We need to see what is actually changing as a result of the independent and intentional changes.
Here's an example:
Let's say I want to test out how much condensation forms on a bottle based on the temperature of the liquid inside.
I will be changing the temperature of the liquid inside, meaning that this is the independent variable
I will be expecting/looking for a change in the condensation because of my change in the independent variable, meaning that this is the dependent variable
In my experiment, there are some things I need to make sure don't change, so that I can see the effect of my change in the temperature directly--perhaps I need to keep the same bottle shape and size, the same amount of liquid, the same location, the same type of liquid, the same amount of time I let it sit for, etc. meaning that these are my constants.
So, with all of this in mind, let's take a look at our experiment given.
Here, I will be changing the amount of baking powder that I use, whilst observing the change in the banana bread that it directly produces.
There are a few things I must keep constant: the amount of the other ingredients, the rest of the baking process (heat/temperature, mixing time, etc.), and the type of baking powder I use
There is another consideration that I probably want to keep consistent: who is deciding the taste of the bread. If the person switches, then I might get a different opinion for the same recipe.
hope this helps! have a lovely day :)
Answer:
1. baking powder amount
2. bread it makes
3. everything else in recipe
