Question

1. state 2 constants.
2. why are these constants? (must include the definition for “constant” in your answer)
3. describe the 2 experimental groups.
4. why are these the experimental groups? (must include the definition for experimental group in your answer)
5. describe the control group.
6. why is this the control group? (must include the definition for control group in your answer)

Explanation:

1. Constants are values that do not change during an experiment. Two common constants could be the type of container used (e.g., glass beaker) and the room - temperature (if kept constant throughout).
2. A constant is a factor that remains the same in an experiment to ensure that only the variable being tested affects the outcome. For example, if testing plant growth with different fertilizers, the amount of water and sunlight could be constants.
3. Experimental groups are groups in an experiment that receive the treatment or variable being tested. For example, in a drug - testing experiment, one group could receive a new drug while another group receives a different dosage of the same drug.
4. An experimental group is a group where the independent variable is manipulated. These are the experimental groups because they allow us to observe the effects of changing the independent variable.
5. The control group is the group in an experiment that does not receive the experimental treatment. For example, in a plant - growth experiment, the control group could be plants that receive no fertilizer.
6. A control group is used for comparison. It is the group that does not have the variable being tested applied to it. This allows researchers to determine if the variable being tested has an effect.

Answer:

1. 1. Type of container (e.g., glass beaker). 2. Room - temperature (if kept constant).
2. Constants are factors that remain unchanged in an experiment to isolate the effect of the variable being tested. For example, in a plant - growth experiment with different fertilizers, the amount of water and sunlight could be constants because they are not being varied to test the impact of fertilizers.
3. For example, in a drug - testing experiment, one group receives a new drug and another group receives a different dosage of the same drug.
4. An experimental group is a group where the independent variable is manipulated. These are experimental groups as they enable us to observe the effects of the manipulated independent variable.
5. In a plant - growth experiment, the control group could be plants that receive no fertilizer.
6. A control group is a group that does not receive the experimental treatment, used for comparison. For example, in a plant - growth experiment, the control group with no fertilizer helps to show the natural growth rate and compare it with the groups that receive fertilizer.