Question

Observation: A sewage treatment plant was built a few years ago near your favorite beach. While exploring the beach one day close to the treatment plant, you do not see any sand crabs, worms, or clams buried in the sand there. After walking a quarter of a mile down the beach, though, you find abundant sand crabs, worms, clams, and other beach animals. This gets you thinking... Use the information above, along with your creativity, as you follow the steps of scientific inquiry to formulate a hypothesis and design and experiment. Question (0.5 pt): Hypothesis (1 pt): I Prediction (0.5 pt): Experimental Design (2 pts): Independent Variable: Dependent Variable: cic hoi Standardized Variables: Control Group: Overview of procedure (continue on back):

Answer 1

Question : Does the area around a sewage water plant unsuitable for any organisms growth beacuse of the presence of chemicals in the soil?

Hypothesis: The different chemicals used in the sewage treatment planst are harmful for organisms which causes the loss of habitable environment for different organisms around the treatment plant.

Prediction: The area aound the sewage treatment plant will not show the presence of any animal, and the soil will have different chemicals.

Experimental design:

Independent variable: The distance form the sewage treatment plant

Dependent variable: The Presence of animals arpund the sewage treatment plant and the presence of chemicals in the soil.

Standardized variable: The type of organisms

Control group: The area with no sewage treatment plant nearby, and the soil present there.

Overview of procedure:

The presence of organsms will be tested around an area around the sewage treatment plant. The soil around the sewage treatment plant and that far from the sewage treatment plant will be tested.

Possible result:

The soil around the sewage treatment plant will show the presence of harmful chemicals.

Conclusion:

The different chemicals used in the sewage treatment planst are harmful for organisms which causes the loss of habitable environment for different organisms around the treatment plant.