After reading the instructions, we can identify the independent, dependent, and control variables as the following:
1. Independent variable: The two types of fertilizers that will be used.
2. Dependent variable: How fast the plants will grow with each fertilizer.
3. Control variable: The plants that will not have any fertilizer added to them.
- When conducting an experiment such as the one described in the question, we are looking for the relationship between two things.
- In this case, we want to see if and how the fertilizers affect the plants' growth.
- The independent variable is the factor we change in order to affect something. Here, it is the use of fertilizers.
- The dependent variable is the thing affected by the independent variable. Here, it is the plants' growth.
- To make sure that the independent variable is affecting the dependent one, we need a control variable.
- In this case, we would select a few plants to not receive any fertilizer. That way, we can compare the plants and see if the fertilizer is making any difference.
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Hello. This question is incomplete. The full question is:
Kalani and lael are students who have been comparing the total kinetic energy of an iceberg to an ice cube
Kalani’s Argument: My claim is that an iceberg has more total kinetic energy (thermal energy) than an ice cube. This is because even though an iceberg is about the same temperature as an ice cube, it is also much larger, so it is made of a lot more molecules. For this reason, an iceberg will have more total kinetic energy (thermal energy) than an ice cube.
Lael's Argument: An iceberg has more total kinetic energy (thermal energy) than an ice cube because it is larger and made of more molecules. This matters because molecules move, and moving things have kinetic energy, so each molecule adds its kinetic energy to the total. Since the iceberg and the ice cube are around the same temperature, the fact that the iceberg has extra molecules means that it will have more total kinetic energy (thermal energy).
Which argument is more convincing?
Answer:
Kalani's argument is more convincing.
Explanation:
Lael says that the fact that Icebrg has extra molecules means that it has greater kinetic energy and this is not true, since the kinetic energy is greater in bodies and objects that have greater speed. In addition, speed increases as a body has greater mass. In this case, we can consider Kalani's argument as more convincing, since she related the kinetic energy to the mass of the iceberg.
B is correct "Dozens" is spelled correctly. As for the other sentences their is incorrect spelling. :)
