Question

question 12 of 21 > ashley hypothesizes that adding coffee grounds to the soil will help the plants grow faster. she designs a controlled experiment to determine if this hypothesis is supported. she grows one group of soybean seedlings under normal conditions. she mixes three tablespoons of coffee grounds into the soil of the second group and grows the seedlings under the same light, temperature, and watering regimen. after three weeks, she measures the height of the seedlings and compares the two groups. identify the parts of the experiment. place only one term in each category. you will not place all the terms. experimental group control group dependent variable independent variable answer bank light soil seedling height seedlings grown with coffee grounds temperature seedlings given extra water seedlings grown without coffee grounds

Explanation:

The experimental group is the one exposed to the variable being tested. Here, it's the seedlings grown with coffee grounds. The control group is the baseline group, which is the seedlings grown without coffee grounds. The dependent variable is what is measured and affected by the independent variable, so it's the seedling height. The independent variable is what is manipulated, which is the presence of coffee grounds.

Answer:

Experimental group: seedlings grown with coffee grounds
Control group: seedlings grown without coffee grounds
Dependent variable: seedling height
Independent variable: presence of coffee grounds (implied by seedlings grown with/without coffee grounds)